This page has only limited features, please log in for full access.
Recently, the use of microalgal bioproducts in aquaculture research has gotten consideration. The current study aims to screen the biochemical components of three microalgae: Nannochloropsis salina, Chlorella salina and Tetraselmis chuii for using in the feeding of Cyclops abyssorum divergens copepods that are suitable prey for the mouth gape of the cultured fish larvae. The effect of different initial densities of these algal cells used for copepods feeding was determined by estimation of proximate composition, polyunsaturated fatty acids (PUFAs), amino acids (AAs) and enzyme activities of copepods. N. salina showed high protein and lipid contents, while C. salina presented high carbohydrate content. C. salina and T. chuii presented high PUFAs, with proportions of 22.35 and 22.67%, respectively, and are considered as the source of n-3 fatty acids. Also, they had higher concentrations of total AAs (21.46 and 24.14 mg. g−1 dry wt., respectively). The experiment study showed that the C. salina diet at an initial concentration of 1 × 106 cells ml−1 resulted in a maximum increase of copepods population density (503.3%) and high protease and trypsin activities (42.65 and 31.80 U. mg−1 protein, respectively) in copepods. T. chuii diet at an initial concentration of 1 × 106 cells ml−1 resulted in a maximum protein, lipid, PUFAs and AAs contents of copepods. Therefore, C. abyssorum divergens copepods after 18 days feeding with an initial concentration of 1 × 106 C. salina or T. chuii cells ml−1 are the suitable candidate diets in larviculture because they achieved higher productivity and attained better nutritional composition of the copepods.
Heba S. El-Sayed; Hoda H. Senousy; Aml Z. Ghoneim; Gihan M. El-Khodary; Mohamed A. El-Sheikh; Hanan M. Khairy; Salwa A. El-Saidy. Screening the biochemical composition of some marine microalgal species for feeding Cyclops abyssorum divergens. Rendiconti Lincei. Scienze Fisiche e Naturali 2021, 32, 609 -624.
AMA StyleHeba S. El-Sayed, Hoda H. Senousy, Aml Z. Ghoneim, Gihan M. El-Khodary, Mohamed A. El-Sheikh, Hanan M. Khairy, Salwa A. El-Saidy. Screening the biochemical composition of some marine microalgal species for feeding Cyclops abyssorum divergens. Rendiconti Lincei. Scienze Fisiche e Naturali. 2021; 32 (3):609-624.
Chicago/Turabian StyleHeba S. El-Sayed; Hoda H. Senousy; Aml Z. Ghoneim; Gihan M. El-Khodary; Mohamed A. El-Sheikh; Hanan M. Khairy; Salwa A. El-Saidy. 2021. "Screening the biochemical composition of some marine microalgal species for feeding Cyclops abyssorum divergens." Rendiconti Lincei. Scienze Fisiche e Naturali 32, no. 3: 609-624.
Motivation Assessing biodiversity status and trends in plant communities is critical for understanding, quantifying and predicting the effects of global change on ecosystems. Vegetation plots record the occurrence or abundance of all plant species co-occurring within delimited local areas. This allows species absences to be inferred, information seldom provided by existing global plant datasets. Although many vegetation plots have been recorded, most are not available to the global research community. A recent initiative, called ‘sPlot’, compiled the first global vegetation plot database, and continues to grow and curate it. The sPlot database, however, is extremely unbalanced spatially and environmentally, and is not open-access. Here, we address both these issues by (a) resampling the vegetation plots using several environmental variables as sampling strata and (b) securing permission from data holders of 105 local-to-regional datasets to openly release data. We thus present sPlotOpen, the largest open-access dataset of vegetation plots ever released. sPlotOpen can be used to explore global diversity at the plant community level, as ground truth data in remote sensing applications, or as a baseline for biodiversity monitoring. Main types of variable contained Vegetation plots (n = 95,104) recording cover or abundance of naturally co-occurring vascular plant species within delimited areas. sPlotOpen contains three partially overlapping resampled datasets (c. 50,000 plots each), to be used as replicates in global analyses. Besides geographical location, date, plot size, biome, elevation, slope, aspect, vegetation type, naturalness, coverage of various vegetation layers, and source dataset, plot-level data also include community-weighted means and variances of 18 plant functional traits from the TRY Plant Trait Database. Spatial location and grain Global, 0.01–40,000 m². Time period and grain 1888–2015, recording dates. Major taxa and level of measurement 42,677 vascular plant taxa, plot-level records. Software format Three main matrices (.csv), relationally linked.
Francesco Maria Sabatini; Jonathan Lenoir; Tarek Hattab; Elise Aimee Arnst; Milan Chytrý; Jürgen Dengler; Patrice De Ruffray; Stephan M. Hennekens; Ute Jandt; Florian Jansen; Borja Jiménez‐Alfaro; Jens Kattge; Aurora Levesley; Valério D. Pillar; Oliver Purschke; Brody Sandel; Fahmida Sultana; Tsipe Aavik; Svetlana Aćić; Alicia T. R. Acosta; Emiliano Agrillo; Miguel Alvarez; Iva Apostolova; Mohammed A. S. Arfin Khan; Luzmila Arroyo; Fabio Attorre; Isabelle Aubin; Arindam Banerjee; Marijn Bauters; Yves Bergeron; Erwin Bergmeier; Idoia Biurrun; Anne D. Bjorkman; Gianmaria Bonari; Viktoria Bondareva; Jörg Brunet; Andraž Čarni; Laura Casella; Luis Cayuela; Tomáš Černý; Victor Chepinoga; János Csiky; Renata Ćušterevska; Els De Bie; André Luis de Gasper; Michele De Sanctis; Panayotis Dimopoulos; Jiri Dolezal; Tetiana Dziuba; Mohamed Abd El‐Rouf Mousa El‐Sheikh; Brian Enquist; Jörg Ewald; Farideh Fazayeli; Richard Field; Manfred Finckh; Sophie Gachet; Antonio Galán‐De‐Mera; Emmanuel Garbolino; Hamid Gholizadeh; Melisa Giorgis; Valentin Golub; Inger Greve Alsos; John‐Arvid Grytnes; Gregory Richard Guerin; Alvaro G. Gutiérrez; Sylvia Haider; Mohamed Z. Hatim; Bruno Hérault; Guillermo Hinojos Mendoza; Norbert Hölzel; Jürgen Homeier; Wannes Hubau; Adrian Indreica; John A. M. Janssen; Birgit Jedrzejek; Anke Jentsch; Norbert Jürgens; Zygmunt Kącki; Jutta Kapfer; Dirk Nikolaus Karger; Ali Kavgacı; Elizabeth Kearsley; Michael Kessler; Larisa Khanina; Timothy Killeen; Andrey Korolyuk; Holger Kreft; Hjalmar S. Kühl; Anna Kuzemko; Flavia Landucci; Attila Lengyel; Frederic Lens; Débora Vanessa Lingner; Hongyan Liu; Tatiana Lysenko; Miguel D. Mahecha; Corrado Marcenò; Vasiliy Martynenko; Jesper Erenskjold Moeslund; Abel Monteagudo Mendoza; Ladislav Mucina; Jonas V. Müller; Jérôme Munzinger; Alireza Naqinezhad; Jalil Noroozi; Arkadiusz Nowak; Viktor Onyshchenko; Gerhard E. Overbeck; Meelis Pärtel; Aníbal Pauchard; Robert K. Peet; Josep Peñuelas; Aaron Pérez‐Haase; Tomáš Peterka; Petr Petřík; Gwendolyn Peyre; Oliver L. Phillips; Vadim Prokhorov; Valerijus Rašomavičius; Rasmus Revermann; Gonzalo Rivas‐Torres; John S. Rodwell; Eszter Ruprecht; Solvita Rūsiņa; Cyrus Samimi; Marco Schmidt; Franziska Schrodt; Hanhuai Shan; Pavel Shirokikh; Jozef Šibík; Urban Šilc; Petr Sklenář; Željko Škvorc; Ben Sparrow; Marta Gaia Sperandii; Zvjezdana Stančić; Jens‐Christian Svenning; Zhiyao Tang; Cindy Q. Tang; Ioannis Tsiripidis; Kim André Vanselow; Rodolfo Vásquez Martínez; Kiril Vassilev; Eduardo Vélez‐Martin; Roberto Venanzoni; Alexander Christian Vibrans; Cyrille Violle; Risto Virtanen; Henrik von Wehrden; Viktoria Wagner; Donald A. Walker; Donald M. Waller; Hua‐Feng Wang; Karsten Wesche; Timothy J. S. Whitfeld; Wolfgang Willner; Susan K. Wiser; Thomas Wohlgemuth; Sergey Yamalov; Martin Zobel; Helge Bruelheide; Amanda Bates. sPlotOpen – An environmentally balanced, open‐access, global dataset of vegetation plots. Global Ecology and Biogeography 2021, 30, 1740 -1764.
AMA StyleFrancesco Maria Sabatini, Jonathan Lenoir, Tarek Hattab, Elise Aimee Arnst, Milan Chytrý, Jürgen Dengler, Patrice De Ruffray, Stephan M. Hennekens, Ute Jandt, Florian Jansen, Borja Jiménez‐Alfaro, Jens Kattge, Aurora Levesley, Valério D. Pillar, Oliver Purschke, Brody Sandel, Fahmida Sultana, Tsipe Aavik, Svetlana Aćić, Alicia T. R. Acosta, Emiliano Agrillo, Miguel Alvarez, Iva Apostolova, Mohammed A. S. Arfin Khan, Luzmila Arroyo, Fabio Attorre, Isabelle Aubin, Arindam Banerjee, Marijn Bauters, Yves Bergeron, Erwin Bergmeier, Idoia Biurrun, Anne D. Bjorkman, Gianmaria Bonari, Viktoria Bondareva, Jörg Brunet, Andraž Čarni, Laura Casella, Luis Cayuela, Tomáš Černý, Victor Chepinoga, János Csiky, Renata Ćušterevska, Els De Bie, André Luis de Gasper, Michele De Sanctis, Panayotis Dimopoulos, Jiri Dolezal, Tetiana Dziuba, Mohamed Abd El‐Rouf Mousa El‐Sheikh, Brian Enquist, Jörg Ewald, Farideh Fazayeli, Richard Field, Manfred Finckh, Sophie Gachet, Antonio Galán‐De‐Mera, Emmanuel Garbolino, Hamid Gholizadeh, Melisa Giorgis, Valentin Golub, Inger Greve Alsos, John‐Arvid Grytnes, Gregory Richard Guerin, Alvaro G. Gutiérrez, Sylvia Haider, Mohamed Z. Hatim, Bruno Hérault, Guillermo Hinojos Mendoza, Norbert Hölzel, Jürgen Homeier, Wannes Hubau, Adrian Indreica, John A. M. Janssen, Birgit Jedrzejek, Anke Jentsch, Norbert Jürgens, Zygmunt Kącki, Jutta Kapfer, Dirk Nikolaus Karger, Ali Kavgacı, Elizabeth Kearsley, Michael Kessler, Larisa Khanina, Timothy Killeen, Andrey Korolyuk, Holger Kreft, Hjalmar S. Kühl, Anna Kuzemko, Flavia Landucci, Attila Lengyel, Frederic Lens, Débora Vanessa Lingner, Hongyan Liu, Tatiana Lysenko, Miguel D. Mahecha, Corrado Marcenò, Vasiliy Martynenko, Jesper Erenskjold Moeslund, Abel Monteagudo Mendoza, Ladislav Mucina, Jonas V. Müller, Jérôme Munzinger, Alireza Naqinezhad, Jalil Noroozi, Arkadiusz Nowak, Viktor Onyshchenko, Gerhard E. Overbeck, Meelis Pärtel, Aníbal Pauchard, Robert K. Peet, Josep Peñuelas, Aaron Pérez‐Haase, Tomáš Peterka, Petr Petřík, Gwendolyn Peyre, Oliver L. Phillips, Vadim Prokhorov, Valerijus Rašomavičius, Rasmus Revermann, Gonzalo Rivas‐Torres, John S. Rodwell, Eszter Ruprecht, Solvita Rūsiņa, Cyrus Samimi, Marco Schmidt, Franziska Schrodt, Hanhuai Shan, Pavel Shirokikh, Jozef Šibík, Urban Šilc, Petr Sklenář, Željko Škvorc, Ben Sparrow, Marta Gaia Sperandii, Zvjezdana Stančić, Jens‐Christian Svenning, Zhiyao Tang, Cindy Q. Tang, Ioannis Tsiripidis, Kim André Vanselow, Rodolfo Vásquez Martínez, Kiril Vassilev, Eduardo Vélez‐Martin, Roberto Venanzoni, Alexander Christian Vibrans, Cyrille Violle, Risto Virtanen, Henrik von Wehrden, Viktoria Wagner, Donald A. Walker, Donald M. Waller, Hua‐Feng Wang, Karsten Wesche, Timothy J. S. Whitfeld, Wolfgang Willner, Susan K. Wiser, Thomas Wohlgemuth, Sergey Yamalov, Martin Zobel, Helge Bruelheide, Amanda Bates. sPlotOpen – An environmentally balanced, open‐access, global dataset of vegetation plots. Global Ecology and Biogeography. 2021; 30 (9):1740-1764.
Chicago/Turabian StyleFrancesco Maria Sabatini; Jonathan Lenoir; Tarek Hattab; Elise Aimee Arnst; Milan Chytrý; Jürgen Dengler; Patrice De Ruffray; Stephan M. Hennekens; Ute Jandt; Florian Jansen; Borja Jiménez‐Alfaro; Jens Kattge; Aurora Levesley; Valério D. Pillar; Oliver Purschke; Brody Sandel; Fahmida Sultana; Tsipe Aavik; Svetlana Aćić; Alicia T. R. Acosta; Emiliano Agrillo; Miguel Alvarez; Iva Apostolova; Mohammed A. S. Arfin Khan; Luzmila Arroyo; Fabio Attorre; Isabelle Aubin; Arindam Banerjee; Marijn Bauters; Yves Bergeron; Erwin Bergmeier; Idoia Biurrun; Anne D. Bjorkman; Gianmaria Bonari; Viktoria Bondareva; Jörg Brunet; Andraž Čarni; Laura Casella; Luis Cayuela; Tomáš Černý; Victor Chepinoga; János Csiky; Renata Ćušterevska; Els De Bie; André Luis de Gasper; Michele De Sanctis; Panayotis Dimopoulos; Jiri Dolezal; Tetiana Dziuba; Mohamed Abd El‐Rouf Mousa El‐Sheikh; Brian Enquist; Jörg Ewald; Farideh Fazayeli; Richard Field; Manfred Finckh; Sophie Gachet; Antonio Galán‐De‐Mera; Emmanuel Garbolino; Hamid Gholizadeh; Melisa Giorgis; Valentin Golub; Inger Greve Alsos; John‐Arvid Grytnes; Gregory Richard Guerin; Alvaro G. Gutiérrez; Sylvia Haider; Mohamed Z. Hatim; Bruno Hérault; Guillermo Hinojos Mendoza; Norbert Hölzel; Jürgen Homeier; Wannes Hubau; Adrian Indreica; John A. M. Janssen; Birgit Jedrzejek; Anke Jentsch; Norbert Jürgens; Zygmunt Kącki; Jutta Kapfer; Dirk Nikolaus Karger; Ali Kavgacı; Elizabeth Kearsley; Michael Kessler; Larisa Khanina; Timothy Killeen; Andrey Korolyuk; Holger Kreft; Hjalmar S. Kühl; Anna Kuzemko; Flavia Landucci; Attila Lengyel; Frederic Lens; Débora Vanessa Lingner; Hongyan Liu; Tatiana Lysenko; Miguel D. Mahecha; Corrado Marcenò; Vasiliy Martynenko; Jesper Erenskjold Moeslund; Abel Monteagudo Mendoza; Ladislav Mucina; Jonas V. Müller; Jérôme Munzinger; Alireza Naqinezhad; Jalil Noroozi; Arkadiusz Nowak; Viktor Onyshchenko; Gerhard E. Overbeck; Meelis Pärtel; Aníbal Pauchard; Robert K. Peet; Josep Peñuelas; Aaron Pérez‐Haase; Tomáš Peterka; Petr Petřík; Gwendolyn Peyre; Oliver L. Phillips; Vadim Prokhorov; Valerijus Rašomavičius; Rasmus Revermann; Gonzalo Rivas‐Torres; John S. Rodwell; Eszter Ruprecht; Solvita Rūsiņa; Cyrus Samimi; Marco Schmidt; Franziska Schrodt; Hanhuai Shan; Pavel Shirokikh; Jozef Šibík; Urban Šilc; Petr Sklenář; Željko Škvorc; Ben Sparrow; Marta Gaia Sperandii; Zvjezdana Stančić; Jens‐Christian Svenning; Zhiyao Tang; Cindy Q. Tang; Ioannis Tsiripidis; Kim André Vanselow; Rodolfo Vásquez Martínez; Kiril Vassilev; Eduardo Vélez‐Martin; Roberto Venanzoni; Alexander Christian Vibrans; Cyrille Violle; Risto Virtanen; Henrik von Wehrden; Viktoria Wagner; Donald A. Walker; Donald M. Waller; Hua‐Feng Wang; Karsten Wesche; Timothy J. S. Whitfeld; Wolfgang Willner; Susan K. Wiser; Thomas Wohlgemuth; Sergey Yamalov; Martin Zobel; Helge Bruelheide; Amanda Bates. 2021. "sPlotOpen – An environmentally balanced, open‐access, global dataset of vegetation plots." Global Ecology and Biogeography 30, no. 9: 1740-1764.
Larval rearing techniques with suitable nursery feed should be prioritized for better survival and growth. We evaluate the potential use of Cyclops abyssorum divergens as a natural live food candidate instead of the costly traditional Artemia franciscana in the feeding strategy for Dicentrarchus labrax larvae. C. abyssorum divergens and A. franciscana were enriched with mixed valuable algae strains (Isochrysis galbana, Tetraselmis chuii, Chlorella marina and Nannochloropsis oculata) that were used in equal biomass proportions (1:1:1:1) on dry weight basis. Amino acids and fatty acid profiles were found to be highly significantly different in enriched C. abyssorum divergens (EC) compared to enriched A. franciscana (EA). The findings also revealed compensated deficiency in some amino acids such as histidine, isoleucine, and methionine in EC and also increased levels of total essential amino acids (EAA) in EC by 8.2 % more than that of EA. Further metabolizing of palmitic acid (C16:0) and bio-conversion of α- linolenic acid, ALA (C18:3 n-3) to high accumulation of DHA fatty acid lead to higher PUFAs contents in EC and lower levels in EA. Specific growth rates (SGR) and survival percentages (S %) of D. labrax were higher in larvae fed with EC compared to the lower values in EA. Moreover, analyzing final carcass composition revealed increased levels of DHA fatty acid attaining DHA/EPA ratio in fish-fed EC of 2.95 % (>1) compared to 0.90 % (<1) in larvae-fed EA. The elevated levels of the amino acids in the larvae-fed EC were a yardstick to the surged growth and survival rate of the examined species. The present study concluded that C. abyssorum divergens is the best promising candidate for Sea bass larvae-culture.
Heba S. El-Sayed; Amal Z. Ghonim; Gihan M. El-Khodary; Mohamed A. El-Sheikh; Hanan M. Khairy. Application of enriched Cyclops abyssorum divergens with mixed algal diet compared to Artemia franciscana for improving larval growth and body composition of Dicentrarchus labrax. Aquaculture Reports 2021, 20, 100715 .
AMA StyleHeba S. El-Sayed, Amal Z. Ghonim, Gihan M. El-Khodary, Mohamed A. El-Sheikh, Hanan M. Khairy. Application of enriched Cyclops abyssorum divergens with mixed algal diet compared to Artemia franciscana for improving larval growth and body composition of Dicentrarchus labrax. Aquaculture Reports. 2021; 20 ():100715.
Chicago/Turabian StyleHeba S. El-Sayed; Amal Z. Ghonim; Gihan M. El-Khodary; Mohamed A. El-Sheikh; Hanan M. Khairy. 2021. "Application of enriched Cyclops abyssorum divergens with mixed algal diet compared to Artemia franciscana for improving larval growth and body composition of Dicentrarchus labrax." Aquaculture Reports 20, no. : 100715.
Prosopis juliflora is one of the most problematic invasive trees in tropical and subtropical regions. Understanding driving forces affecting the potential global distribution would help in managing its current and future spread. The role of climate on the global spatial distribution of P. juliflora has been well studied, but little is known about the role of soil and human impacts as potential drivers. Here, we used maximum entropy (MaxEnt) for species distribution modelling to understand the role of climate (C), soil (S) and human impacts (H), C+S, and C+S+H in controlling the potential invasion range of P. juliflora, and to project its global potential invasive risk. We defined the top threatened global biomes, as predicted by the best-selected model. The incorporation of the edaphic factors improved the model performance and enhanced the accuracy of the outcome. Our findings revealed that the potential invasion risk increases with increases in mean temperature of the driest quarter (Bio9), soil alkalinity and clay fractions. Arid and semi-arid lands are at the highest risk of invasion than other moist biomes.
Mohammed Dakhil; Ali El-Keblawy; Mohamed El-Sheikh; Marwa Halmy; Taoufik Ksiksi; Walaa Hassan. Global Invasion Risk Assessment of Prosopis juliflora at Biome Level: Does Soil Matter? Biology 2021, 10, 203 .
AMA StyleMohammed Dakhil, Ali El-Keblawy, Mohamed El-Sheikh, Marwa Halmy, Taoufik Ksiksi, Walaa Hassan. Global Invasion Risk Assessment of Prosopis juliflora at Biome Level: Does Soil Matter? Biology. 2021; 10 (3):203.
Chicago/Turabian StyleMohammed Dakhil; Ali El-Keblawy; Mohamed El-Sheikh; Marwa Halmy; Taoufik Ksiksi; Walaa Hassan. 2021. "Global Invasion Risk Assessment of Prosopis juliflora at Biome Level: Does Soil Matter?" Biology 10, no. 3: 203.
Guar is an economically important legume crop that is used for gum production. The clean and sustainable production of guar, especially in newly reclaimed lands, requires biofertilizers that can reduce the use of mineral fertilizers, which have harmful effects on human health and the environment. The present study was conducted to investigate the effects of biofertilizers produced from Bradyrhizobium sp., Bacillus subtilis, and arbuscular mycorrhizal fungi (AMF), individually or in combinations, on microbial activity, and nutrients of the soils and the guar growth and seed quality and yield. The application of biofertilizers improved shoot length, root length, number of branches, plant dry weight, leaf area index (LAI), chlorophyll content, and nutrient uptake of guar plants compared with the control plants. Moreover, the application with biofertilizers resulted in an obvious increase in seed yield and has improved the total proteins, carbohydrates, fats, starch, and guaran contents in the seeds. Additionally, biofertilizer treatments have improved the soil microbial activity by increasing dehydrogenase, phosphatase, protease, and invertase enzymes. Soil inoculation with the optimized doses of biofertilizers saved about 25% of the chemical fertilizers required for the entire guar growth stages. Our results could serve as a practical strategy for further research into integrated plant-microbe interaction in agriculture.
Ahmed El-Sawah; Ali El-Keblawy; Dina Ali; Heba Ibrahim; Mohamed El-Sheikh; Anket Sharma; Yousef Alhaj Hamoud; Hiba Shaghaleh; Marian Brestic; Milan Skalicky; You-Cai Xiong; Mohamed Sheteiwy. Arbuscular Mycorrhizal Fungi and Plant Growth-Promoting Rhizobacteria Enhance Soil Key Enzymes, Plant Growth, Seed Yield, and Qualitative Attributes of Guar. Agriculture 2021, 11, 194 .
AMA StyleAhmed El-Sawah, Ali El-Keblawy, Dina Ali, Heba Ibrahim, Mohamed El-Sheikh, Anket Sharma, Yousef Alhaj Hamoud, Hiba Shaghaleh, Marian Brestic, Milan Skalicky, You-Cai Xiong, Mohamed Sheteiwy. Arbuscular Mycorrhizal Fungi and Plant Growth-Promoting Rhizobacteria Enhance Soil Key Enzymes, Plant Growth, Seed Yield, and Qualitative Attributes of Guar. Agriculture. 2021; 11 (3):194.
Chicago/Turabian StyleAhmed El-Sawah; Ali El-Keblawy; Dina Ali; Heba Ibrahim; Mohamed El-Sheikh; Anket Sharma; Yousef Alhaj Hamoud; Hiba Shaghaleh; Marian Brestic; Milan Skalicky; You-Cai Xiong; Mohamed Sheteiwy. 2021. "Arbuscular Mycorrhizal Fungi and Plant Growth-Promoting Rhizobacteria Enhance Soil Key Enzymes, Plant Growth, Seed Yield, and Qualitative Attributes of Guar." Agriculture 11, no. 3: 194.
This study aimed to evaluate appropriate water sources to improve Solea aegyptiaca aquaculture from larval to the juvenile stage using two water sources (Eastern Harbour (EH) and MaxWell (MW)). Firstly, four microalgae's nutritional value (Nannochloropsis salina, N. oculata, Chlorella salina and Tetraselmis chuii) was assessed in both water sources. MW of high nitrate content enhanced the algal biomass and biochemical composition of all species compared to EH. MW‐N. salina showed the highest growth and biochemical contents among the investigated species and yielded Artemia franciscana with a considerable amount of arachidonic acid (ARA), eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA) compared to EH. Secondly, Artemia enriched MW‐N salina was used to improve S. aegyptiaca quality in both water sources from 10–48 days posthatch at a density of 15 larvae L−1. The MW‐S. aegyptiaca exhibited a significant increase in morphometric parameters, albino percentages and recorded the highest ARA, EPA and DHA content (35.9, 6.1 and 15.9 µg g−1, respectively) compared to that reared on EH. The study reports evidence of albinism of MW‐S. aegyptiaca due to high dietary and ARA content. Overall, the seawater source has a significant impact on the whole food chain quality from microalgae to S. aegyptiaca.
Gihan M. El‐Khodary; Heba S. El‐Sayed; Hanan M. Khairy; Mohamed A. El‐Sheikh; Xianghui Qi; Mostafa E. Elshobary. Comparative study on growth, survival and pigmentation of Solea aegyptiaca larvae by using four different microalgal species with emphasize on water quality and nutritional value. Aquaculture Nutrition 2020, 27, 615 -629.
AMA StyleGihan M. El‐Khodary, Heba S. El‐Sayed, Hanan M. Khairy, Mohamed A. El‐Sheikh, Xianghui Qi, Mostafa E. Elshobary. Comparative study on growth, survival and pigmentation of Solea aegyptiaca larvae by using four different microalgal species with emphasize on water quality and nutritional value. Aquaculture Nutrition. 2020; 27 (2):615-629.
Chicago/Turabian StyleGihan M. El‐Khodary; Heba S. El‐Sayed; Hanan M. Khairy; Mohamed A. El‐Sheikh; Xianghui Qi; Mostafa E. Elshobary. 2020. "Comparative study on growth, survival and pigmentation of Solea aegyptiaca larvae by using four different microalgal species with emphasize on water quality and nutritional value." Aquaculture Nutrition 27, no. 2: 615-629.
Untreated wastewater contains toxic amounts of heavy metals such as chromium (Cr), which poses a serious threat to the growth and physiology of plants when used in irrigation. Though, Cr is among the most widespread toxic trace elements found in agricultural soils due to various anthropogenic activities. To explore the interactive effects of micronutrients with amino acid chelators [iron-lysine (Fe-lys) and zinc-lysine (Zn-lys)], pot experiments were conducted in a controlled environment, using spinach (Spinacia oleracea L.) plant irrigated with tannery wastewater. S. oleracea was treated without Fe and Zn-lys (0 mg/L Zn-lys and 0 mg/L Fe-lys) and also treated with various combinations of (interactive application) Fe and Zn-lys (10 mg/L Zn-lys and 5 mg/L Fe-lys), when cultivated at different levels [0 (control) 33, 66 and 100%) of tannery wastewater in the soil having a toxic level of Cr in it. According to the results, we have found that, high concentration of Cr in the soil significantly (P < 0.05) reduced plant height, fresh biomass of roots and leaves, dry biomass of roots and leaves, root length, number of leaves, leaf area, total chlorophyll contents, carotenoid contents, transpiration rate (E), stomatal conductance (gs), net photosynthesis (PN), and water use efficiency (WUE) and the contents of Zn and Fe in the plant organs without foliar application of Zn and Fe-lys. Moreover, phytotoxicity of Cr increased malondialdehyde (MDA) contents in the plant organs (roots and leaves), which induced oxidative damage in S. oleracea manifested by the contents of hydrogen peroxide (H2O2) and membrane leakage. The negative effects of Cr toxicity could be overturned by Zn and Fe-lys application, which significantly (P < 0.05) increase plant growth, biomass, chlorophyll content, and gaseous exchange attributes by reducing oxidative stress (H2O2, MDA, EL) and increasing the activities of various antioxidant enzymes such as superoxide dismutase (SOD), peroxidase (POD) catalase (CAT) and ascorbate peroxidase (APX). Furthermore, the supplementation of Zn and Fe-lys increased the contents of essential nutrients (Fe and Zn) and decreased the content of Cr in all plant parts compared to the plants cultivated in tannery wastewater without application of Fe-lys. Taken together, foliar supplementation of Zn and Fe-lys alleviates Cr toxicity in S. oleracea by increased morpho-physiological attributes of the plants, decreased Cr contents and increased micronutrients uptake by the soil, and can be an effective in heavy metal toxicity remedial approach for other crops.
Ihsan Elahi Zaheer; Shafaqat Ali; Muhammad Hamzah Saleem; Mohsin Ali; Muhammad Riaz; Sehar Javed; Anam Sehar; Zohaib Abbas; Muhammad Rizwan; Mohamed A. El-Sheikh; Mohammed Nasser Alyemeni. Interactive role of zinc and iron lysine on Spinacia oleracea L. growth, photosynthesis and antioxidant capacity irrigated with tannery wastewater. Physiology and Molecular Biology of Plants 2020, 26, 2435 -2452.
AMA StyleIhsan Elahi Zaheer, Shafaqat Ali, Muhammad Hamzah Saleem, Mohsin Ali, Muhammad Riaz, Sehar Javed, Anam Sehar, Zohaib Abbas, Muhammad Rizwan, Mohamed A. El-Sheikh, Mohammed Nasser Alyemeni. Interactive role of zinc and iron lysine on Spinacia oleracea L. growth, photosynthesis and antioxidant capacity irrigated with tannery wastewater. Physiology and Molecular Biology of Plants. 2020; 26 (12):2435-2452.
Chicago/Turabian StyleIhsan Elahi Zaheer; Shafaqat Ali; Muhammad Hamzah Saleem; Mohsin Ali; Muhammad Riaz; Sehar Javed; Anam Sehar; Zohaib Abbas; Muhammad Rizwan; Mohamed A. El-Sheikh; Mohammed Nasser Alyemeni. 2020. "Interactive role of zinc and iron lysine on Spinacia oleracea L. growth, photosynthesis and antioxidant capacity irrigated with tannery wastewater." Physiology and Molecular Biology of Plants 26, no. 12: 2435-2452.
Microbial degradation as a treatment, with the combination of mixed inoculants of the Biofertilizer of Pseudomonas sp., Azospirillium sp. and Rhizobium sp., was employed for the remediation of Silk dyeing effluent. Remediating studies was undertaken to assess the feasibility of the mixed biofertilizer inoculant source for degradation of the Azodye effluent from the Silk dyeing Industry. The Green leafy vegetable (GLV), Amaranthus tristis Linn used as investigational prototypical plant species is selected for examining the phytochemicals, functional groups and its compounds grown in the effluent and biotreated environment and compared. The laboratory scale investigation showed that leaves, stem and root of the Amaranthus tristis Linn was qualitatively analysed for 20 phytochemicals which was grown in the different treatments of raw effluent and the biotreated effluent and the results showed the phytochemicals on the effluent’s influence reduced from strong positive to trace amounts while recovered on the biotreated environment. The FTIR analysis of the GLV grown in effluent and biotreated environments on comparison resulted in the functional group Alkene rescued in the biotreated effluent environment compared to the effluent contaminated area. The HPLC analysis of methanolic extracts of A. tristis grown in fresh water has 6 peaks of retention time of 2.6, 3, 3.9, 4, 4.2, and 4.6 RT whereas GLV effluent had only one peak of retention time of 4.1 RT. In the GLV from biotreated environment have 4 peaks were found with the maximum percentage area of 95.2% which proves that the compounds are rescued in the biotreated environment and few active compounds were confirmed in GCMS analysis. The Soil analysis results also indicate that the biotreatment of mixed inoculant of biofertilizers in the biotreated soil had influence resulting in improved levels of Ca, N, P and K with 114, 213, 10.5, 268 kg/ha respectively in the mixed inoculant biotreated soil. Similarly the micronutrients suchas Fe, Mn, Cu and Zn ranges to 4.1, 20.22, 2.13, 1.13 ppm respectively in the mixed inoculant biotreated soil within the optimal range. The study revealed that mixed biofertilizer inoculant has the recovery effect on the Silk dyeing (Azodyes) effluents effective reducing the pollutant capacity thereby meeting the discharged standards.
Sumayya Rehaman; Mohamed A. El-Sheikh; Ahamed H. Alfarhan; U. Ushani. Spectral studies of Amaranthus tristis Linn. in Bioremediated Silk dyeing effluent with mixed biofertilizer inoculants. Saudi Journal of Biological Sciences 2020, 28, 1203 -1212.
AMA StyleSumayya Rehaman, Mohamed A. El-Sheikh, Ahamed H. Alfarhan, U. Ushani. Spectral studies of Amaranthus tristis Linn. in Bioremediated Silk dyeing effluent with mixed biofertilizer inoculants. Saudi Journal of Biological Sciences. 2020; 28 (2):1203-1212.
Chicago/Turabian StyleSumayya Rehaman; Mohamed A. El-Sheikh; Ahamed H. Alfarhan; U. Ushani. 2020. "Spectral studies of Amaranthus tristis Linn. in Bioremediated Silk dyeing effluent with mixed biofertilizer inoculants." Saudi Journal of Biological Sciences 28, no. 2: 1203-1212.
In recent years, the phenomenon of abandonment of arable fields has increased in Saudi Arabia due to low soil fertility, drought, low rainfall, high levels of evapotranspiration, soil salinization, and low level of groundwater. We evaluated the effect of agricultural land abandonment on soil properties, perennial vegetation composition, and population structure in the Al-Kharj region, Saudi Arabia. A total of 11 perennial plant species belonging to 9 families and 11 genera were detected in the different abandoned fields of the study area. Four plant communities were identified after the application of the detrended correspondence analysis (DCA) ordination. The indicator species were (1) Seidlitzia rosmarinus—Zygophyllum hamiense, (2) Traganum nudatum—Seidlitzia rosmarinus, (3) Traganum nudatum—Prosopis farcta, and (4) Calligonum comosum—Pulicaria undulata. Results of the soil analysis showed significant differences in soil texture, pH, salinity, and nutrient content among the four recognized plant communities. Demographic analysis indicated that populations of Zygophyllum hamiense and Calligonum comosum tended to be either inverse J-shaped or positively skewed which may have indicated rapidly-growing populations with high reproductive capacity. Conversely, the size–frequency distribution of Traganum nudatum, S. Rosmarinus, and Prosopis farcta was approximately symmetrical (i.e., bell-shaped). The present study sheds light on the necessity of managing abandoned agricultural fields for restoring and improving rangelands with native species that are adapted to the local conditions such as low water demand.
Saud Al-Rowaily; Dekhil Al-Dosari; Abdulaziz Assaeed; Ahmed Abd-ElGawad; Mohamed El-Sheikh; Magdy El-Bana; Wafa’A Al-Taisan. Native Perennial Plants Colonizing Abandoned Arable Fields in a Desert Area: Population Structure and Community Assembly. Agriculture 2020, 10, 550 .
AMA StyleSaud Al-Rowaily, Dekhil Al-Dosari, Abdulaziz Assaeed, Ahmed Abd-ElGawad, Mohamed El-Sheikh, Magdy El-Bana, Wafa’A Al-Taisan. Native Perennial Plants Colonizing Abandoned Arable Fields in a Desert Area: Population Structure and Community Assembly. Agriculture. 2020; 10 (11):550.
Chicago/Turabian StyleSaud Al-Rowaily; Dekhil Al-Dosari; Abdulaziz Assaeed; Ahmed Abd-ElGawad; Mohamed El-Sheikh; Magdy El-Bana; Wafa’A Al-Taisan. 2020. "Native Perennial Plants Colonizing Abandoned Arable Fields in a Desert Area: Population Structure and Community Assembly." Agriculture 10, no. 11: 550.
Despite the prevalence of the common pharmaceutical ibuprofen (IBU) in water and sediments worldwide, the effects of IBU on plants are largely unknown. This study was designed to assess the ecotoxicological effects of emerging pharmaceutical pollutant IBU on plant growth and development in a series of toxicity experiments using cowpea (Vigna unguiculata). Plant growth parameters (morphological and physicochemical) were investigated under a series of IBU concentrations (0, 400, 800, 1200, 1600, 2000 ppm IBU). IBU exposure reduced the shoot and root lengths, fresh and dry weights, leaf area, and chlorophyll a and b, carotenoid, total chlorophyll, mineral (K and Mg), glutathione reductase, and soluble protein contents. Simultaneously, increases in Ca and Mn contents, sodium translocation from roots to shoots, H2O2, malondialdehyde, superoxide dismutase, catalase, ascorbate peroxidase, and IBU uptake were observed. The amount of bioaccumulated IBU varied between 7% and 8%. IBU was translocated from roots to shoots with a translocation factor of 3–16%. The IC50 values for biomass and plant length were 1253 and 1955 ppm IBU, respectively, which is much higher than the reported levels of IBU in the environment. This study demonstrates that cowpea plants develop several morphological and physicochemical adaptations to cope under ibuprofen stress; environmentally relevant concentrations of IBU are unlikely to produce negative impacts.
Leonard Wijaya; Mohammed Alyemeni; Parvaiz Ahmad; Ahmed Alfarhan; Damia Barcelo; Mohamed El-Sheikh; Yolanda Pico. Ecotoxicological Effects of Ibuprofen on Plant Growth of Vigna unguiculata L. Plants 2020, 9, 1473 .
AMA StyleLeonard Wijaya, Mohammed Alyemeni, Parvaiz Ahmad, Ahmed Alfarhan, Damia Barcelo, Mohamed El-Sheikh, Yolanda Pico. Ecotoxicological Effects of Ibuprofen on Plant Growth of Vigna unguiculata L. Plants. 2020; 9 (11):1473.
Chicago/Turabian StyleLeonard Wijaya; Mohammed Alyemeni; Parvaiz Ahmad; Ahmed Alfarhan; Damia Barcelo; Mohamed El-Sheikh; Yolanda Pico. 2020. "Ecotoxicological Effects of Ibuprofen on Plant Growth of Vigna unguiculata L." Plants 9, no. 11: 1473.
The measurement of sustainability in terms of social, economic, and ecological indicators significantly influences the achievement of sustainable development goals. This paper presents a sustainable livelihood security index (SLSI) by selecting 20 indicators and positions them within the ecological, economic, and social dimensions of sustainable development for the Indian west coast. These indicators were first normalized and, using estimated weights, indices were computed. Important indicators were shortlisted by a two-step process, namely, principal component analysis and linear and nonlinear weighted scores. The results revealed that indicators such as forest cover, net sown area, milk availability, groundwater availability, land productivity, food grain availability, rural road connectivity, villages electrified, and land degradation were found to be important indicators. Kerala was found as the most developed state followed by Gujarat, Karnataka, Maharashtra, and Goa in linear and non-linear weighted scoring. The study identifies the Jamnagar, Junagadh, Kachchh, Ratnagiri, and Sindhudurg districts as the districts with the highest priority for development through investment and policy interventions. The study concludes that the west coast region, in terms of its sustainable development levels, improved significantly with a focus on low-SLSI districts by considering ecological, economic, and social dimensions in planning for technological development and dissemination.
Viswanatha Krishna; Venkatesh Paramesh; Vadivel Arunachalam; Bappa Das; Hosam Elansary; Arjun Parab; Dendi Reddy; K. Shashidhar; Diaa El-Ansary; Eman Mahmoud; Mohamed El-Sheikh. Assessment of Sustainability and Priorities for Development of Indian West Coast Region: An Application of Sustainable Livelihood Security Indicators. Sustainability 2020, 12, 8716 .
AMA StyleViswanatha Krishna, Venkatesh Paramesh, Vadivel Arunachalam, Bappa Das, Hosam Elansary, Arjun Parab, Dendi Reddy, K. Shashidhar, Diaa El-Ansary, Eman Mahmoud, Mohamed El-Sheikh. Assessment of Sustainability and Priorities for Development of Indian West Coast Region: An Application of Sustainable Livelihood Security Indicators. Sustainability. 2020; 12 (20):8716.
Chicago/Turabian StyleViswanatha Krishna; Venkatesh Paramesh; Vadivel Arunachalam; Bappa Das; Hosam Elansary; Arjun Parab; Dendi Reddy; K. Shashidhar; Diaa El-Ansary; Eman Mahmoud; Mohamed El-Sheikh. 2020. "Assessment of Sustainability and Priorities for Development of Indian West Coast Region: An Application of Sustainable Livelihood Security Indicators." Sustainability 12, no. 20: 8716.
The present investigation aimed to determine the fungal toxicity of Isaria tenuipes (My-It) against the dengue mosquito vector Aedes aegypti L. and its non-target impact against the aquatic predator Toxorhynchitessplendens. Lethal concentrations (LC50 and LC90) of My-It were observed in 2.27 and 2.93 log ppm dosages, respectively. The sub-lethal dosage (My-It-1 × 104 conidia/mL) displayed a significant oviposition deterrence index and also blocked the fecundity rate of dengue mosquitos in a dose-dependent manner. The level of major detoxifying enzymes, such as carboxylesterase (α-and β-) and SOD, significantly declined in both third and fourth instar larvae at the maximum dosage of My-It 1 × 105 conidia/mL. However, the level of glutathione S-transferase (GST) and cytochrome P-450 (CYP450) declined steadily when the sub-lethal dosage was increased and attained maximum reduction in the enzyme level at the dosage of My-It (1 × 105 conidia/mL). Correspondingly, the gut-histology and photomicrography results made evident that My-It (1 × 105 conidia/mL) heavily damaged the internal gut cells and external physiology of the dengue larvae compared to the control. Moreover, the non-target toxicity against the beneficial predator revealed that My-It at the maximum dosage (1 × 1020 conidia/mL) was found to be less toxic with Tx.splendens. Thus, the present toxicological research on Isaria tenuipes showed that it is target-specific and a potential agent for managing medically threatening arthropods.
Sengodan Karthi; Prabhakaran Vasantha-Srinivasan; Raja Ganesan; Venkatachalam Ramasamy; Sengottayan Senthil-Nathan; Hanem F. Khater; Narayanaswamy Radhakrishnan; Kesavan Amala; Tae-Jin Kim; Mohamed A. El-Sheikh; Patcharin Krutmuang. Target Activity of Isaria tenuipes (Hypocreales: Clavicipitaceae) Fungal Strains against Dengue Vector Aedes aegypti (Linn.) and Its Non-Target Activity Against Aquatic Predators. Journal of Fungi 2020, 6, 196 .
AMA StyleSengodan Karthi, Prabhakaran Vasantha-Srinivasan, Raja Ganesan, Venkatachalam Ramasamy, Sengottayan Senthil-Nathan, Hanem F. Khater, Narayanaswamy Radhakrishnan, Kesavan Amala, Tae-Jin Kim, Mohamed A. El-Sheikh, Patcharin Krutmuang. Target Activity of Isaria tenuipes (Hypocreales: Clavicipitaceae) Fungal Strains against Dengue Vector Aedes aegypti (Linn.) and Its Non-Target Activity Against Aquatic Predators. Journal of Fungi. 2020; 6 (4):196.
Chicago/Turabian StyleSengodan Karthi; Prabhakaran Vasantha-Srinivasan; Raja Ganesan; Venkatachalam Ramasamy; Sengottayan Senthil-Nathan; Hanem F. Khater; Narayanaswamy Radhakrishnan; Kesavan Amala; Tae-Jin Kim; Mohamed A. El-Sheikh; Patcharin Krutmuang. 2020. "Target Activity of Isaria tenuipes (Hypocreales: Clavicipitaceae) Fungal Strains against Dengue Vector Aedes aegypti (Linn.) and Its Non-Target Activity Against Aquatic Predators." Journal of Fungi 6, no. 4: 196.
We studied the polyphenol (phenolic compounds and flavonoids) composition and allelopathic effects of Acacia melanoxylon R. Br. aerial foliage aqueous extract (0%, 25%, 50%, 75% and 100%) on the seedling growth and plant biomass of the general biotest species, lettuce (Lactuca sativa). Mean leaf fresh weight, leaf dry weight, root fresh weight and root dry weight were decreased following exposure to Acacia aerial foliage, flowers aqueous extract (AFE) and phyllodes aqueous extract (APE) after 6 days. The reduction in plant dry biomass was more than 50% following treatment with AFE. The decrease in mean root length was approximately 37.7% and 29.20% following treatment with Acacia flowers extract (AFE) at 75% and 100% concentration, respectively. Root dry weight of L. sativa was reduced by both flowers and phyllodes extract. The reduction of protein contents in lettuce leaves following Acacia foliage extract proved that both AFE and APE exhibit polyphenols that causes the toxicity which led to decrease in leaf protein contents. High-Performance Liquid Chromatography (HPLC) was employed to analyze the A. melanoxylon flowers and phyllodes. A total of 13 compounds (accounting for most abundant compounds in flowers and phyllodes) include different flavonoids and phenolic compounds. The phytochemical compounds detected were: Gallic acid, protocatechuic acid, p-hydroxybenzoic acid, p-hydroxybenzaldehyde, vanillic acid, syringic acid, p-coumaric acid, and ferulic acid. The major flavonoid compounds identified include rutin, luteolin, apigenin, and catechin. Allelopathic effects of flower and phyllodes extracts from A. melanoxylon may be due to the presence of above compounds identified by HPLC analysis.
M. Iftikhar Hussain; Mohamed A. El-Sheikh; Manuel J. Reigosa. Allelopathic Potential of Aqueous Extract from Acacia melanoxylon R. Br. on Lactuca sativa. Plants 2020, 9, 1228 .
AMA StyleM. Iftikhar Hussain, Mohamed A. El-Sheikh, Manuel J. Reigosa. Allelopathic Potential of Aqueous Extract from Acacia melanoxylon R. Br. on Lactuca sativa. Plants. 2020; 9 (9):1228.
Chicago/Turabian StyleM. Iftikhar Hussain; Mohamed A. El-Sheikh; Manuel J. Reigosa. 2020. "Allelopathic Potential of Aqueous Extract from Acacia melanoxylon R. Br. on Lactuca sativa." Plants 9, no. 9: 1228.
Contamination of soil and water with metals and metalloids is one of the most serious problems worldwide due to a lack of a healthy diet and food scarcity. Moreover, the cultivation of oilseed crops such as rapeseed (Brassica napus L.) with tannery wastewater could contain a large amount of toxic heavy metals [e.g., chromium (Cr)], which ultimately reduce its yield and directly influence oilseed quality. To overcome Cr toxicity in B. napus, a pot experiment was conducted to enhance plant growth and biomass by using newly introduced role of micronutrient-amino chelates [Zinc-lysine (Zn-lys)], which was irrigated with different levels [0% (control), 33%, 66%, and 100%] of tannery wastewater. According to the results of present findings, very high content of Cr in the wastewater directly affected plant growth and composition as well as gas exchange parameters, while boosting up the production of reactive oxygen species (ROS) and induced oxidative damage in the roots and leaves of B. napus. However, activities of antioxidants initially increased (33% of wastewater), but further addition of tannery wastewater in the soil caused a decrease in antioxidant enzymes, which also manifested by Zn content, while the conscious addition of wastewater significantly increased Cr content in the roots and shoots of B. napus. To reduce Cr toxicity in B. napus plants, exogenous supplementation of Zn-lys (10 mg/L) plays an effective role in increasing morpho-physiological attributes of B. napus and also reduces the oxidative stress in the roots and leaves of the oilseed crop (B. napus). Enhancement in different growth attributes was directly linked with increased in antioxidative enzymes while decreased uptake and accumulation of Cr content in B. napus when cultivated in wastewater with the application of Zn-lys. Zn-lys, therefore, plays a protective role in reducing the Cr toxicity of B. napus through an increase in plant growth and lowering of Cr uptake in various plant organs. However, further studies at field levels are required to explore the mechanisms of Zn–lys mediated reduction of Cr and possibly other heavy metal toxicity in plants.
Ihsan Elahi Zaheer; Shafaqat Ali; Muhammad Hamzah Saleem; Muhammad Arslan Ashraf; Qurban Ali; Zohaib Abbas; Muhammad Rizwan; Mohamed A. El-Sheikh; Mohammed Nasser Alyemeni; Leonard Wijaya. Zinc-lysine Supplementation Mitigates Oxidative Stress in Rapeseed (Brassica napus L.) by Preventing Phytotoxicity of Chromium, When Irrigated with Tannery Wastewater. Plants 2020, 9, 1145 .
AMA StyleIhsan Elahi Zaheer, Shafaqat Ali, Muhammad Hamzah Saleem, Muhammad Arslan Ashraf, Qurban Ali, Zohaib Abbas, Muhammad Rizwan, Mohamed A. El-Sheikh, Mohammed Nasser Alyemeni, Leonard Wijaya. Zinc-lysine Supplementation Mitigates Oxidative Stress in Rapeseed (Brassica napus L.) by Preventing Phytotoxicity of Chromium, When Irrigated with Tannery Wastewater. Plants. 2020; 9 (9):1145.
Chicago/Turabian StyleIhsan Elahi Zaheer; Shafaqat Ali; Muhammad Hamzah Saleem; Muhammad Arslan Ashraf; Qurban Ali; Zohaib Abbas; Muhammad Rizwan; Mohamed A. El-Sheikh; Mohammed Nasser Alyemeni; Leonard Wijaya. 2020. "Zinc-lysine Supplementation Mitigates Oxidative Stress in Rapeseed (Brassica napus L.) by Preventing Phytotoxicity of Chromium, When Irrigated with Tannery Wastewater." Plants 9, no. 9: 1145.
Heavy metals (HMs) stress causes severe damage to physiology and biochemistry of plant species leading to stunted growth and low yield. Phytoremediation via phytoextraction, a viable low-cost and environment-friendly alternative to other techniques that are often too expensive, impractical and hazardous. However, phytoextraction potential, physiological and biochemical response of various plant species against HMs stress is not fully understood. Among other HMs, lead (Pb) is an inorganic pollutant with deleterious biotic effects. Bioavailability and mobility of the Pb can be enhanced by addition of organic acids. A pot scale experiment was done to assess the effects of Pb on Alternanthera bettzickiana (Regel) G. Nicholson and its ability to accumulate Pb with or without acetic acid (AA). The Results showed that Pb caused significant damage in A. bettzickiana, and its ecotoxicity was evident from increased levels of lipid peroxidation up to 107% under Pb stress. The significant decrease in plant height (32%), root length (21%), leaf area (38%) and number of leaves per plant (46%) was observed. On the other hand, application of AA to Pb stressed plants reduced the oxidative damage by further enhancing the activities of ascorbate peroxidase (APX) and catalases (CAT) up to 16% and 21% respectively. Moreover, addition of AA significantly improved plant total chlorophylls (15%) and carotenoids (50%). The application of AA also promoted Pb accumulation in leaf, stem and roots up to 70%, 65% and 66% respectively. This research concluded that AA has the ability to enhance the phytoextraction of Pb and support the plant growth and physiology under Pb stress condition.
Urousa Latif; Mujahid Farid; Muhammad Rizwan; Hafiz Khuzama Ishaq; Sheharyaar Farid; Shafaqat Ali; Mohamed A. El-Sheikh; Mohammed Nasser Alyemeni; Leonard Wijaya. Physiological and Biochemical Response of Alternanthera bettzickiana (Regel) G. Nicholson under Acetic Acid Assisted Phytoextraction of Lead. Plants 2020, 9, 1084 .
AMA StyleUrousa Latif, Mujahid Farid, Muhammad Rizwan, Hafiz Khuzama Ishaq, Sheharyaar Farid, Shafaqat Ali, Mohamed A. El-Sheikh, Mohammed Nasser Alyemeni, Leonard Wijaya. Physiological and Biochemical Response of Alternanthera bettzickiana (Regel) G. Nicholson under Acetic Acid Assisted Phytoextraction of Lead. Plants. 2020; 9 (9):1084.
Chicago/Turabian StyleUrousa Latif; Mujahid Farid; Muhammad Rizwan; Hafiz Khuzama Ishaq; Sheharyaar Farid; Shafaqat Ali; Mohamed A. El-Sheikh; Mohammed Nasser Alyemeni; Leonard Wijaya. 2020. "Physiological and Biochemical Response of Alternanthera bettzickiana (Regel) G. Nicholson under Acetic Acid Assisted Phytoextraction of Lead." Plants 9, no. 9: 1084.
Different techniques are being employed to reduce the adverse effects of water stress on seed yield and quality of crop plants. The current study aimed to improve the water stress tolerance of field-grown sunflower by foliar-supplied ecofriendly iron-chelated aspartate (Fe-Asp) in comparison with FeSO4. Water stress decreased the plant growth and yield, accompanied with disturbed water relations, nutrient acquisition, accumulation of amino acids, and antioxidative defense mechanisms. However, lipid peroxidation, total anthocyanin, and photosynthetic pigments were increased. Fertigation of FeSO4 and Fe-Asp as foliar sprays proved effective to reduce the negativities of limited irrigation on biomass production and seed yield, accompanied with a reduction in lipid peroxidation and improvements in water relations, antioxidative defense mechanisms, and leaf photosynthetic pigments. In comparison with FeSO4, foliary applied Fe-Asp better improved the plant water relations with more accumulation of essential amino acids and nutrient acquisition, especially leaf aspartate (Asp) and Fe accumulation which showed better translocation. Overall, foliary applied Fe-Asp proved better for induction of drought tolerance in sunflower plants as compared with FeSO4. The study recommended the use of the ecofriendly Fe-Asp as a foliar spray for better growth and production of sunflower under limited irrigation.
Qasim Ali; Shafaqat Ali; Mohamed A. El-Esawi; Muhammad Rizwan; Muhammad Azeem; Abdullah Ijaz Hussain; Rashida Perveen; Mohamed A. El-Sheikh; Mohammed Nasser Alyemeni; Leonard Wijaya. Foliar Spray of Fe-Asp Confers Better Drought Tolerance in Sunflower as Compared with FeSO4: Yield Traits, Osmotic Adjustment, and Antioxidative Defense Mechanisms. Biomolecules 2020, 10, 1217 .
AMA StyleQasim Ali, Shafaqat Ali, Mohamed A. El-Esawi, Muhammad Rizwan, Muhammad Azeem, Abdullah Ijaz Hussain, Rashida Perveen, Mohamed A. El-Sheikh, Mohammed Nasser Alyemeni, Leonard Wijaya. Foliar Spray of Fe-Asp Confers Better Drought Tolerance in Sunflower as Compared with FeSO4: Yield Traits, Osmotic Adjustment, and Antioxidative Defense Mechanisms. Biomolecules. 2020; 10 (9):1217.
Chicago/Turabian StyleQasim Ali; Shafaqat Ali; Mohamed A. El-Esawi; Muhammad Rizwan; Muhammad Azeem; Abdullah Ijaz Hussain; Rashida Perveen; Mohamed A. El-Sheikh; Mohammed Nasser Alyemeni; Leonard Wijaya. 2020. "Foliar Spray of Fe-Asp Confers Better Drought Tolerance in Sunflower as Compared with FeSO4: Yield Traits, Osmotic Adjustment, and Antioxidative Defense Mechanisms." Biomolecules 10, no. 9: 1217.
Accurate and up to date land use and land cover (LU/LC) changes information is the main source to understanding and assessing the environmental outcomes of such changes and is important for development plans. Thus, this study quantified the outlines of land cover variation of 10-years in the northwestern costal land of the Red Sea, Saudi Arabia. Two different supervised classification algorithms are visualized and evaluated to preparing a policy recommendation for the proper improvements towards better determining the tendency and the proportion of the vegetation cover changes. Firstly, to determine present vegetation structure of study area, 78 stands with a size of 50 × 50 m were analysed. Secondly, to obtain the vegetation dynamics in this area, two satellite images of temporal data sets were used; therefore, SPOT-5 images were obtained in 2004 and 2013. For each data set, four SPOT-5 scenes were placed into approximately 250-km intervals to cover the northwestern coastal land of the Red Sea. Both supervised and non-supervised cataloguing methods were attained towards organise the study area in 4-major land cover classes through using 5 various organizations algorithms. Approximately 900 points were evenly distributed within each SPOT-5 image and used for assessment accuracy. The floristic composition exhibits high diversity with 142 species and seven vegetation types were identified after multivariate analysis (VG I: Acacia tortilis-Acacia ehrenbergiana, VG II: Acacia tortilis-Stipagrostis plumosa, VG III: Zygophyllum coccineum-Zygophyllum simplex, VG IV: Acacia raddiana-Lycium shawii-Anabasis setifera, VG V: Tamarix aucheriana-Juncus rigidus, VG VI: Capparis decidua-Zygophyllum simplex and VG VII: Avicennia marina-Aristida adscensionis) and ranged between halophytic vegetation on the coast to xerophytic vegetation with scattered Acacia trees inland. The dynamic results showed rapid, imbalanced variations arises between 3-land cover classes (areas as urban, vegetation and desert). However, these findings shall serve as the baseline data for the design of rehabilitation programs that conserve biodiversity in arid regions and form treasured resources for an urban planner and decision makers to device bearable usage of land and environmental planning.
Awad Alharthi; Mohamed A. El-Sheikh; Mohamed Elhag; Abdulrahman A. Alatar; Ghanim A. Abbadi; Eslam M. Abdel-Salam; Ibrahim A. Arif; Ariej A. Baeshen; Ebrahem M. Eid. Remote sensing of 10 years changes in the vegetation cover of the northwestern coastal land of Red Sea, Saudi Arabia. Saudi Journal of Biological Sciences 2020, 27, 3169 -3179.
AMA StyleAwad Alharthi, Mohamed A. El-Sheikh, Mohamed Elhag, Abdulrahman A. Alatar, Ghanim A. Abbadi, Eslam M. Abdel-Salam, Ibrahim A. Arif, Ariej A. Baeshen, Ebrahem M. Eid. Remote sensing of 10 years changes in the vegetation cover of the northwestern coastal land of Red Sea, Saudi Arabia. Saudi Journal of Biological Sciences. 2020; 27 (11):3169-3179.
Chicago/Turabian StyleAwad Alharthi; Mohamed A. El-Sheikh; Mohamed Elhag; Abdulrahman A. Alatar; Ghanim A. Abbadi; Eslam M. Abdel-Salam; Ibrahim A. Arif; Ariej A. Baeshen; Ebrahem M. Eid. 2020. "Remote sensing of 10 years changes in the vegetation cover of the northwestern coastal land of Red Sea, Saudi Arabia." Saudi Journal of Biological Sciences 27, no. 11: 3169-3179.
Gibberellic acid from the fungi has been widely used in agriculture. In this study, more than 20 fungal isolates were screened and Paecilomyces sp. ZB shown to produce more gibberellic acid than other fungal isolates. Cow dung was used as low cost substrate for gibberellic acid production in solid state fermentation (SSF). Carbon, nitrogen and ionic sources stimulated gibberellic acid production in SSF. Lactose emerged as the significant carbon source supporting more gibberellic acid production (731 µg/g). Among the nitrogen sources, glycine appeared to influence the production of more gibberellic acid (803 µg/g). The process parameters were optimized to enhance gibberellic acid production using a two-level full factorial design and response surface methodology. The amount of gibberellic acid production was influenced mainly by moisture and pH of the substrate. Gibberellic acid production was 1312 µg/g under the optimized conditions and the predicted response was 1339 µg/g. The gibberellic acid yield increased twofolds after medium optimization. The extracted gibberellic acid was sprayed on the growing Mung bean plant and it stimulated the growth of the plant effectively. To conclude, cow dung is a new alternative to produce gibberellic acid in SSF.
Mohamed A. El-Sheikh; Jayarajapazham Rajaselvam; Eslam M. Abdel-Salam; Ponnuswamy Vijayaraghavan; Abdulrahman A. Alatar; Gurupatham Devadhasan Biji. Paecilomyces sp. ZB is a cell factory for the production of gibberellic acid using a cheap substrate in solid state fermentation. Saudi Journal of Biological Sciences 2020, 27, 2431 -2438.
AMA StyleMohamed A. El-Sheikh, Jayarajapazham Rajaselvam, Eslam M. Abdel-Salam, Ponnuswamy Vijayaraghavan, Abdulrahman A. Alatar, Gurupatham Devadhasan Biji. Paecilomyces sp. ZB is a cell factory for the production of gibberellic acid using a cheap substrate in solid state fermentation. Saudi Journal of Biological Sciences. 2020; 27 (9):2431-2438.
Chicago/Turabian StyleMohamed A. El-Sheikh; Jayarajapazham Rajaselvam; Eslam M. Abdel-Salam; Ponnuswamy Vijayaraghavan; Abdulrahman A. Alatar; Gurupatham Devadhasan Biji. 2020. "Paecilomyces sp. ZB is a cell factory for the production of gibberellic acid using a cheap substrate in solid state fermentation." Saudi Journal of Biological Sciences 27, no. 9: 2431-2438.
The wild Prunus korshinskyi has a restricted distribution in small scattered areas of Jabal Al-Lauz (2580 m above sea level), a mountain in northwestern Saudi Arabia. Major objective of current study is to provide information about P. korshinskyi by analyzing its ecology in terms of floristic diversity, plant associations, environmental features, and its size structure and nutritional value. For this purpose, 12 stands of 20 m2 were selected along the Jabal Al-Lauz mountain ridge. Three plant associations and their environmental variables were identified and characterized after application of a two-way indicator species analysis (TWINSPAN), detrended correspondence analysis (DCA). And canonical correspondence analysis (CCA) as follows: VGI: P. korshinskyi-Astracantha echinus, VGII: Artemisia siberi-P. korshinskyi, and VGIII: Retama raetam-Artemisia sieberi. The edaphic factor affecting the distribution of the associations were pH, potassium and manganese content. The size class frequency distribution of P. korshinskyi shows a J-shape in spring and fall for the whole population; there was no regeneration via seed. Nutritional evaluation showed the fruits had a higher content of total carbohydrate, fats, crude protein, phosphorus, and potassium, and lower content of ash, Fe, Ca, Mn, Mg, and Zn than that in stems and leaves. This ecological knowledge gained through this study would be beneficial for managing and conserving of P. korshinskyi in a Jabal Al-Lauz area with its distinct and unique vegetation.
Mohamed A. Al-Shehri; Mohamed A. El-Sheikh; Ahmed H. Al-Farhan; Ibrahim Arif; R. Rajakrishnan; Abdulrahman A. Alatar; Mohammad Faisal; Riyad A. Basahi; Ghanim A. Al-Abbadi. Ecology of endangered Prunus korshinskyi Hand.-Mazz. in Jabal Al-Lauz, Saudi Arabia: Plant associations, size structure, and nutritional screening. Saudi Journal of Biological Sciences 2019, 27, 147 -156.
AMA StyleMohamed A. Al-Shehri, Mohamed A. El-Sheikh, Ahmed H. Al-Farhan, Ibrahim Arif, R. Rajakrishnan, Abdulrahman A. Alatar, Mohammad Faisal, Riyad A. Basahi, Ghanim A. Al-Abbadi. Ecology of endangered Prunus korshinskyi Hand.-Mazz. in Jabal Al-Lauz, Saudi Arabia: Plant associations, size structure, and nutritional screening. Saudi Journal of Biological Sciences. 2019; 27 (1):147-156.
Chicago/Turabian StyleMohamed A. Al-Shehri; Mohamed A. El-Sheikh; Ahmed H. Al-Farhan; Ibrahim Arif; R. Rajakrishnan; Abdulrahman A. Alatar; Mohammad Faisal; Riyad A. Basahi; Ghanim A. Al-Abbadi. 2019. "Ecology of endangered Prunus korshinskyi Hand.-Mazz. in Jabal Al-Lauz, Saudi Arabia: Plant associations, size structure, and nutritional screening." Saudi Journal of Biological Sciences 27, no. 1: 147-156.
Prunus arabica (Oliv.) Meikle is an endangered shrub with a restricted distribution, which inhabits banks of flood flow channels in small sites of ancient volcanic activity dominated by black basaltic boulders within the Harrat Al-Harrah protectorate, Northern Saudi Arabia. It is with limited information about its ecology and hence, the present study is focusing on its phytosociological behavior and ecological features. The multi-methodological approach comprised species description, vegetation sampling and soil composition of 9 study sites at Harrat Al-Harrah protectorate. The application of TWINSPAN, DCA and CCA multivariate analyses led to identify 3 vegetation groups (VGI: Pulicaria undulata-Prunus arabica, VGII: Prunus arabica-Artemisia seiberi, VGIII: Artemisia seiberi-Achillea fragrantissima) associated with the distribution of P. arabica. The environmental variables that affect P. arabica and its main ecological features had been estimated and discussed. The present study concludes that the main reasons for its threatened and endangerment are seemingly due to overgrazing, poor rainfall, drought, shifting and destruction of its suitable habitat area.
Mohamed A. El-Sheikh; Mohamed A. Al-Shehri; Ahmed H. Alfarhan; Abdulrahman A. Alatar; R. Rajakrishnan; Saud L. Al-Rowaily. Threatened Prunus arabica in an ancient volcanic protected area of Saudi Arabia: Floristic diversity and plant associations. Saudi Journal of Biological Sciences 2019, 26, 325 -333.
AMA StyleMohamed A. El-Sheikh, Mohamed A. Al-Shehri, Ahmed H. Alfarhan, Abdulrahman A. Alatar, R. Rajakrishnan, Saud L. Al-Rowaily. Threatened Prunus arabica in an ancient volcanic protected area of Saudi Arabia: Floristic diversity and plant associations. Saudi Journal of Biological Sciences. 2019; 26 (2):325-333.
Chicago/Turabian StyleMohamed A. El-Sheikh; Mohamed A. Al-Shehri; Ahmed H. Alfarhan; Abdulrahman A. Alatar; R. Rajakrishnan; Saud L. Al-Rowaily. 2019. "Threatened Prunus arabica in an ancient volcanic protected area of Saudi Arabia: Floristic diversity and plant associations." Saudi Journal of Biological Sciences 26, no. 2: 325-333.