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Unexpected biomagnifications and bioaccumulation of heavy metals (HMs) in the surrounding environment has become a predicament for all living organisms together with plants. Excessive release of HMs from industrial discharge and other anthropogenic activities has threatened sustainable agricultural practices and limited the overall profitable yield of different plants species. Heavy metals at toxic levels interact with cellular molecules, leading towards the unnecessary generation of reactive oxygen species (ROS), restricting productivity and growth of the plants. The application of various osmoprotectants is a renowned approach to mitigate the harmful effects of HMs on plants. In this review, the effective role of glycine betaine (GB) in alleviation of HM stress is summarized. Glycine betaine is very important osmoregulator, and its level varies considerably among different plants. Application of GB on plants under HMs stress successfully improves growth, photosynthesis, antioxidant enzymes activities, nutrients uptake, and minimizes excessive heavy metal uptake and oxidative stress. Moreover, GB activates the adjustment of glutathione reductase (GR), ascorbic acid (AsA) and glutathione (GSH) contents in plants under HM stress. Excessive accumulation of GB through the utilization of a genetic engineering approach can successfully enhance tolerance against stress, which is considered an important feature that needs to be investigated in depth.
Shafaqat Ali; Zohaib Abbas; Mahmoud F. Seleiman; Muhammad Rizwan; Ilkay Yavaş; Bushra Ahmed Alhammad; Ashwag Shami; Mirza Hasanuzzaman; Dimitris Kalderis. Glycine Betaine Accumulation, Significance and Interests for Heavy Metal Tolerance in Plants. Plants 2020, 9, 896 .
AMA StyleShafaqat Ali, Zohaib Abbas, Mahmoud F. Seleiman, Muhammad Rizwan, Ilkay Yavaş, Bushra Ahmed Alhammad, Ashwag Shami, Mirza Hasanuzzaman, Dimitris Kalderis. Glycine Betaine Accumulation, Significance and Interests for Heavy Metal Tolerance in Plants. Plants. 2020; 9 (7):896.
Chicago/Turabian StyleShafaqat Ali; Zohaib Abbas; Mahmoud F. Seleiman; Muhammad Rizwan; Ilkay Yavaş; Bushra Ahmed Alhammad; Ashwag Shami; Mirza Hasanuzzaman; Dimitris Kalderis. 2020. "Glycine Betaine Accumulation, Significance and Interests for Heavy Metal Tolerance in Plants." Plants 9, no. 7: 896.
Selenyumun (Se) özellikle abiyotik stres koşullarındaki bitkilerde antioksidan rol oynamakla birlikte biyofortikasyonda yer almaktadır. Düşük dozlarda büyüme ve gelişmeyi teşvik etmekte buna karşın yüksek dozlarda toksik etkide bulunmaktadır. Bu derlemede selenyumun tuzluluk, yüksek sıcaklık ve kuraklık gibi stres koşullarındaki fizyolojik etkileri, topraktaki yarayışlılığı ve alım mekanizması üzerinde yoğunlaşılmıştır. Toprakların selenyum içeriğinin, toprak tekstürü, organik madde, redoks potansiyeli, pH ve kil içeriğine bağlı olduğu belirlenmiştir. Bitkilerin selenat ve selenit gibi inorganik formdaki selenyum ile selenosistein ve selenometionin gibi organik formdaki selenyumu aldığı görülmüştür. Selenyum alımı ve metabolizmasının bitki türüne, büyüme dönemine ve bitki organına göre değişim gösterdiği tespit edilmiştir. Düşük dozlarda selenyumun selenoprotein sentezini düzenlediği, antioksidan fonksiyonunu artırdığı ve bitkileri sıcaklık, kuraklık, UV-B, tuzluluk ve ağır metal stresi gibi çeşitli abiyotik streslere karşı koruduğu belirlenmiştir.
Ilkay Yavaş; Volkan Mehmet Çinar; Aydın Ünay. Bitkilerde Abiyotik Stres Koşullarında Selenyum Metabolizması ve Fizyolojik Etkileri. European Journal of Science and Technology 2020, 840 -849.
AMA StyleIlkay Yavaş, Volkan Mehmet Çinar, Aydın Ünay. Bitkilerde Abiyotik Stres Koşullarında Selenyum Metabolizması ve Fizyolojik Etkileri. European Journal of Science and Technology. 2020; (18):840-849.
Chicago/Turabian StyleIlkay Yavaş; Volkan Mehmet Çinar; Aydın Ünay. 2020. "Bitkilerde Abiyotik Stres Koşullarında Selenyum Metabolizması ve Fizyolojik Etkileri." European Journal of Science and Technology , no. 18: 840-849.
Heavy-metal (HM) pollution is considered a leading source of environmental contamination. Heavy-metal pollution in ground water poses a serious threat to human health and the aquatic ecosystem. Conventional treatment technologies to remove the pollutants from wastewater are usually costly, time-consuming, environmentally destructive, and mostly inefficient. Phytoremediation is a cost-effective green emerging technology with long-lasting applicability. The selection of plant species is the most significant aspect for successful phytoremediation. Aquatic plants hold steep efficiency for the removal of organic and inorganic pollutants. Water hyacinth (Eichhornia crassipes), water lettuce (Pistia stratiotes) and Duck weed (Lemna minor) along with some other aquatic plants are prominent metal accumulator plants for the remediation of heavy-metal polluted water. The phytoremediation potential of the aquatic plant can be further enhanced by the application of innovative approaches in phytoremediation. A summarizing review regarding the use of aquatic plants in phytoremediation is gathered in order to present the broad applicability of phytoremediation.
Shafaqat Ali; Zohaib Abbas; Muhammad Rizwan; Ihsan Zaheer; Ilkay Yavaş; Aydın Ünay; Mohamed Abdel-Daim; May Bin-Jumah; Mirza Hasanuzzaman; Dimitris Kalderis. Application of Floating Aquatic Plants in Phytoremediation of Heavy Metals Polluted Water: A Review. Sustainability 2020, 12, 1927 .
AMA StyleShafaqat Ali, Zohaib Abbas, Muhammad Rizwan, Ihsan Zaheer, Ilkay Yavaş, Aydın Ünay, Mohamed Abdel-Daim, May Bin-Jumah, Mirza Hasanuzzaman, Dimitris Kalderis. Application of Floating Aquatic Plants in Phytoremediation of Heavy Metals Polluted Water: A Review. Sustainability. 2020; 12 (5):1927.
Chicago/Turabian StyleShafaqat Ali; Zohaib Abbas; Muhammad Rizwan; Ihsan Zaheer; Ilkay Yavaş; Aydın Ünay; Mohamed Abdel-Daim; May Bin-Jumah; Mirza Hasanuzzaman; Dimitris Kalderis. 2020. "Application of Floating Aquatic Plants in Phytoremediation of Heavy Metals Polluted Water: A Review." Sustainability 12, no. 5: 1927.
Ultraviolet-B (UV-B: 280 to 320 nm) radiations have appeared to be detrimental to plants, due to their damaging effects on proteins, lipids, membranes and DNA. UV-B radiations are a significant regulator of plants’ secondary metabolites. High intensity of ultraviolet radiations may interfere with growth and productivity of crops. But low levels of UV-B radiations give rise to changes in the plants’ secondary metabolites such as phenolic compounds, carotenoids and glucoseinolates. Therefore, low intensity of UV-B radiations may be used to generate plants, enriched with secondary metabolites, having improved reproductive ability, early ripening and tolerance against fungi, bacteria and herbivores.
Ilkay Yavaş; Aydın Ünay; Shafaqat Ali; Zohaib Abbas. UV-B Radiations and Secondary Metabolites. Turkish Journal of Agriculture - Food Science and Technology 2020, 8, 147 -157.
AMA StyleIlkay Yavaş, Aydın Ünay, Shafaqat Ali, Zohaib Abbas. UV-B Radiations and Secondary Metabolites. Turkish Journal of Agriculture - Food Science and Technology. 2020; 8 (1):147-157.
Chicago/Turabian StyleIlkay Yavaş; Aydın Ünay; Shafaqat Ali; Zohaib Abbas. 2020. "UV-B Radiations and Secondary Metabolites." Turkish Journal of Agriculture - Food Science and Technology 8, no. 1: 147-157.
Ilkay Yavaş; Fatih Mehmet Yılmaz; Aydın Ünay. Promoting effect of foliar silicon on steviol glycoside contents of Stevia rebaudiana Bertoni under salt stress. International Journal of Secondary Metabolite 2019, 6, 263 -268.
AMA StyleIlkay Yavaş, Fatih Mehmet Yılmaz, Aydın Ünay. Promoting effect of foliar silicon on steviol glycoside contents of Stevia rebaudiana Bertoni under salt stress. International Journal of Secondary Metabolite. 2019; 6 (3):263-268.
Chicago/Turabian StyleIlkay Yavaş; Fatih Mehmet Yılmaz; Aydın Ünay. 2019. "Promoting effect of foliar silicon on steviol glycoside contents of Stevia rebaudiana Bertoni under salt stress." International Journal of Secondary Metabolite 6, no. 3: 263-268.
Alkali grass grows in waterlogged, saline and alaline soils. The main problem in these soils is minerals at toxic level. The toxic ions are chloride, sodium and boron. A number of techniques have been investigated for removing toxic metals from the soil. Today, the cost-effective and environmentally technique is phytoremediation, using hyperaccumulator plants. Alkali grass (Puccinellia ciliata Bor) is suggested as a hyperaccumulator plant by the combination of more favourable characteristics with salt and waterlogging tolerance, high biomass value and convincing nutritive value for adverse environmental conditions. For this reason, we collected alkali grass and soil samples from five different locations in Aydın-Muğla highway, Turanlar and Sınırteke villages in Germencik-Aydın. In the soil analysis, we observed that K accumulation varies between root, shoot and panicle at least whereas Na and B shows more variation on whole plant portions among locations. Intense aerenchyma development on the root tips of Puccinellia plant was observed and it is determined as radial lysogenic aerenchyma formation. Average plant height and dry matter values were between 47.2-74.4 cm and 15.61-80.85 g/plant according to locations. The highest plant height value was obtained from the first location whereas the highest dry matter yield was detected in the fifth location. In conclusion, plants from fifth location can be regarded as fodder plants in these areas. Our results indicated that alkali grass can be effective for phytoextraction of sodium and boron from contaminated sites.
Ilkay Yavaş; Aydın Ünay. The Evaluation of Alkali Grass (Puccinellia ciliata Bor) Populations in Aydin Province of Turkey. Turkish Journal of Agriculture - Food Science and Technology 2017, 5, 858 -863.
AMA StyleIlkay Yavaş, Aydın Ünay. The Evaluation of Alkali Grass (Puccinellia ciliata Bor) Populations in Aydin Province of Turkey. Turkish Journal of Agriculture - Food Science and Technology. 2017; 5 (8):858-863.
Chicago/Turabian StyleIlkay Yavaş; Aydın Ünay. 2017. "The Evaluation of Alkali Grass (Puccinellia ciliata Bor) Populations in Aydin Province of Turkey." Turkish Journal of Agriculture - Food Science and Technology 5, no. 8: 858-863.
Ilkay Yavaş; Aydın Ünay. The Role of Silicon under Biotic and Abiotic Stress Conditions. Türkiye Tarımsal Araştırmalar Dergisi 2017, 4, 1 .
AMA StyleIlkay Yavaş, Aydın Ünay. The Role of Silicon under Biotic and Abiotic Stress Conditions. Türkiye Tarımsal Araştırmalar Dergisi. 2017; 4 (2):1.
Chicago/Turabian StyleIlkay Yavaş; Aydın Ünay. 2017. "The Role of Silicon under Biotic and Abiotic Stress Conditions." Türkiye Tarımsal Araştırmalar Dergisi 4, no. 2: 1.
This research was conducted to determine the wheat varieties against waterlogging which was clearly increased in recent years. For this purpose, this study was performed at Field Crops and Soil Science Department of Agricultural Faculty of Adnan Menderes University during wheat growth stages of 2007-2008. The experimental design was randomized complete block design with split split plot arrangements. The main plots were temperature applications (heat and normal), the growth periods (Zadoks scale; GS14, GS32, GS14 + GS32, and control) were split plots and varieties were split-split plots. The eight different wheat varieties were evaluated in the pots. The waterlogging was performed during GS14, GS32 and GS14 + GS32. In a pot experiment, plants were subjected to waterlogging to the soil surface for 10 days. All applications and varieties decreased the single plant yield. The waterlogging caused a yield loss compared with wheat grown on well-drained soil. In this study, the crop loss due to waterlogging is highly temperature dependent. The severity of the effects of the waterlogging depends on the growth stage of the plot. When all applications were compared with control by means of yield performance, Sagittario and Basribey varieties were less affected than the others.
Ilkay Yavas; Aydin Unay; Mehmet Aydin. The Waterlogging Tolerance of Wheat Varieties in Western of Turkey. The Scientific World Journal 2012, 2012, 1 -7.
AMA StyleIlkay Yavas, Aydin Unay, Mehmet Aydin. The Waterlogging Tolerance of Wheat Varieties in Western of Turkey. The Scientific World Journal. 2012; 2012 ():1-7.
Chicago/Turabian StyleIlkay Yavas; Aydin Unay; Mehmet Aydin. 2012. "The Waterlogging Tolerance of Wheat Varieties in Western of Turkey." The Scientific World Journal 2012, no. : 1-7.
The purposes of this study were to determine the percentage of out-crossing, isolation distance and pollinator insect species for cotton (Gossypium hirsutum L.) seed production in the Aydin region in Turkey. The glandless and red-leaf traits in G. hirsutum were used as genetic markers. Two experiments were conducted over two years that monitored out-crossing in adjacent rows and adjacent plants and established that the percentage of out-crossing varied. The percentage of out-crossing varied between 0% and 13.3% depending on the genetic marker. In the experiment to determine isolation distance, natural crossing percentage was not observed in 2002, while this percentage was 0.8% in the first rows in 2003. In this study, cotton fields were also visited once a week during flowering periods for seven weeks in order to determine the numbers of pollinator insect species, where the only detected species was the honey bee. The numbers of pollinator insects were 2.14% (2002) and 1.30% (2003) for adjacent rows; 1.71% (2002) and 2.00% (2003) for adjacent plants in glandless parcels. It is recommended that the isolation distance between genotypes should be approximately 1 m.
Taner Bozbek; Nedim Ozbek; Volkan Sezener; Oktay Erdoğan; Ilkay Yavas; Aydin Unay. Natural crossing and isolation distance between cotton genotypes in turkey. Scientia Agricola 2008, 65, 314 -317.
AMA StyleTaner Bozbek, Nedim Ozbek, Volkan Sezener, Oktay Erdoğan, Ilkay Yavas, Aydin Unay. Natural crossing and isolation distance between cotton genotypes in turkey. Scientia Agricola. 2008; 65 (3):314-317.
Chicago/Turabian StyleTaner Bozbek; Nedim Ozbek; Volkan Sezener; Oktay Erdoğan; Ilkay Yavas; Aydin Unay. 2008. "Natural crossing and isolation distance between cotton genotypes in turkey." Scientia Agricola 65, no. 3: 314-317.
Nedim Ozbek; Volkan Sezener; Ilkay Yavas; Aydin Unay. Influence of First Irrigation Time on Yield and Quality of Different Cotton Varieties. Asian Journal of Plant Sciences 2006, 5, 796 -798.
AMA StyleNedim Ozbek, Volkan Sezener, Ilkay Yavas, Aydin Unay. Influence of First Irrigation Time on Yield and Quality of Different Cotton Varieties. Asian Journal of Plant Sciences. 2006; 5 (5):796-798.
Chicago/Turabian StyleNedim Ozbek; Volkan Sezener; Ilkay Yavas; Aydin Unay. 2006. "Influence of First Irrigation Time on Yield and Quality of Different Cotton Varieties." Asian Journal of Plant Sciences 5, no. 5: 796-798.
Oktay Erdogan; Volkan Sezener; Nedim Ozbek; Taner Bozbek; Ilkay Yavas; Aydin Unay. The Effects of Verticillium Wilt (Verticilli1m dahliae Kleb.) on Cotton Yield and Fiber Quality. Asian Journal of Plant Sciences 2006, 5, 867 -870.
AMA StyleOktay Erdogan, Volkan Sezener, Nedim Ozbek, Taner Bozbek, Ilkay Yavas, Aydin Unay. The Effects of Verticillium Wilt (Verticilli1m dahliae Kleb.) on Cotton Yield and Fiber Quality. Asian Journal of Plant Sciences. 2006; 5 (5):867-870.
Chicago/Turabian StyleOktay Erdogan; Volkan Sezener; Nedim Ozbek; Taner Bozbek; Ilkay Yavas; Aydin Unay. 2006. "The Effects of Verticillium Wilt (Verticilli1m dahliae Kleb.) on Cotton Yield and Fiber Quality." Asian Journal of Plant Sciences 5, no. 5: 867-870.