This page has only limited features, please log in for full access.
Lentil (Lens culinaris Medik) is an important component of the human diet due to its high mineral and protein contents. Abiotic stresses, i.e., drought, decreases plant growth and yield. Drought causes the synthesis of reactive oxygen species, which decrease a plant’s starch contents and growth. However, ACC-deaminase (1-aminocyclopropane-1-carboxylate deaminase) producing rhizobacteria can alleviate drought stress by decreasing ethylene levels. On the other hand, caffeic acid (CA) can also positively affect cell expansion and turgor pressure maintenance under drought stress. Therefore, the current study was planned with an aim to assess the effect of CA (0, 20, 50 and 100 ppm) and ACC-deaminase rhizobacteria (Lysinibacillus fusiform, Bacillus amyloliquefaciens) on lentils under drought stress. The combined application of CA and ACC-deaminase containing rhizobacteria significantly improved plant height (55%), number of pods per plant (51%), 1000-grain weight (45%), nitrogen concentration (56%), phosphorus concentration (19%), potassium concentration (21%), chlorophyll (54%), relative water contents RWC (60%) and protein contents (55%). A significant decrease in electrolyte leakage (30%), proline contents (44%), and hydrogen peroxide contents (54%), along with an improvement in cell membrane stability (34% over control) validated the combined use of CA and rhizobacteria. In conclusion, co-application of CA (20 ppm) and ACC-deaminase producing rhizobacteria can significantly improve plant growth and yield for farmers under drought stress. More investigations are suggested at the field level to select the best rhizobacteria and CA level for lentils under drought.
Muhammad Zafar-Ul-Hye; Muhammad Naeem Akbar; Yasir Iftikhar; Mazhar Abbas; Atiqa Zahid; Shah Fahad; Rahul Datta; Muqarrab Ali; Abdallah M. Elgorban; Mohammad Javed Ansari; Subhan Danish. Rhizobacteria Inoculation and Caffeic Acid Alleviated Drought Stress in Lentil Plants. Sustainability 2021, 13, 9603 .
AMA StyleMuhammad Zafar-Ul-Hye, Muhammad Naeem Akbar, Yasir Iftikhar, Mazhar Abbas, Atiqa Zahid, Shah Fahad, Rahul Datta, Muqarrab Ali, Abdallah M. Elgorban, Mohammad Javed Ansari, Subhan Danish. Rhizobacteria Inoculation and Caffeic Acid Alleviated Drought Stress in Lentil Plants. Sustainability. 2021; 13 (17):9603.
Chicago/Turabian StyleMuhammad Zafar-Ul-Hye; Muhammad Naeem Akbar; Yasir Iftikhar; Mazhar Abbas; Atiqa Zahid; Shah Fahad; Rahul Datta; Muqarrab Ali; Abdallah M. Elgorban; Mohammad Javed Ansari; Subhan Danish. 2021. "Rhizobacteria Inoculation and Caffeic Acid Alleviated Drought Stress in Lentil Plants." Sustainability 13, no. 17: 9603.
Yasir Iftikhar; Mazhar Abbas; Mustansar Mubeen; Muhammad Zafar-Ul-Hye; FaheemA Bakhtawar; Sonum Bashir; Ashara Sajid; Muhammad Asif Shabbir. Overview of Strain Characterization in Relation to Serological and Molecular Detection of Citrus tristeza Closterovirus. Phyton 2021, 90, 1063 -1074.
AMA StyleYasir Iftikhar, Mazhar Abbas, Mustansar Mubeen, Muhammad Zafar-Ul-Hye, FaheemA Bakhtawar, Sonum Bashir, Ashara Sajid, Muhammad Asif Shabbir. Overview of Strain Characterization in Relation to Serological and Molecular Detection of Citrus tristeza Closterovirus. Phyton. 2021; 90 (4):1063-1074.
Chicago/Turabian StyleYasir Iftikhar; Mazhar Abbas; Mustansar Mubeen; Muhammad Zafar-Ul-Hye; FaheemA Bakhtawar; Sonum Bashir; Ashara Sajid; Muhammad Asif Shabbir. 2021. "Overview of Strain Characterization in Relation to Serological and Molecular Detection of Citrus tristeza Closterovirus." Phyton 90, no. 4: 1063-1074.
The high consumption of water in industries, domestic areas and increasing earth temperature are major hurdles for the optimization of maize yield. Being the third most widely cultivated cereal crop, improvement in maize yield is a big challenge under the limited availability of irrigation. As the water requirement for maize cultivation is high, it is time to introduce technologies that can mitigate drought stress and are environmentally friendly. The inoculation of rhizobacteria with ‘1-aminocyclopropane-1-carboxylate deaminase’ (ACCD) can play an imperative role in that regard by decreasing stress ethylene in plants. Biochar (BC) can also alleviate drought stress. Therefore, a field study was conducted, to examine the single and combined application of drought-tolerant plant-growth-promoting rhizobacteria (PGPRs) Achromobacter xylosoxidans and Enterobacter cloacae, with 15 Mg ha−1 of timber waste biochar (TWBC) at normal irrigation = 16 irrigations, mild drought = 14 irrigations and severe drought = 12 irrigation for maize cultivation. A significant improvement in shoot dry weight (28%), 1000-grains weight (19%), grain yield (27%), concentrations of N (43%), P (92%) and K (71%) in grains, rate of photosynthesis (33%), transpiration rate (55%), stomatal conductance (104%), chlorophyll A (33%), chlorophyll B (62%) and total chlorophyll (45%) of maize was noted under drought stress where E. cloacae + TWBC was applied. Likewise, the application of A. xylosoxidans + TWBC also significantly enhanced the plant height (24%) and cob length (9%) of maize under drought stress. In conclusion, E. cloacae is more effective than A. xylosoxidans, with 15 Mg ha−1 TWBC to increase maize yield under drought stress, due to the potential of higher ‘1-aminocyclopropane-1-carboxylate’ (ACC)-deaminase synthesis, better nutrient solubilization and indole acetic acid (IAA) production.
Subhan Danish; Muhammad Zafar-Ul-Hye; Shah Fahad; Shah Saud; Martin Brtnicky; Tereza Hammerschmiedt; Rahul Datta. Drought Stress Alleviation by ACC Deaminase Producing Achromobacter xylosoxidans and Enterobacter cloacae, with and without Timber Waste Biochar in Maize. Sustainability 2020, 12, 6286 .
AMA StyleSubhan Danish, Muhammad Zafar-Ul-Hye, Shah Fahad, Shah Saud, Martin Brtnicky, Tereza Hammerschmiedt, Rahul Datta. Drought Stress Alleviation by ACC Deaminase Producing Achromobacter xylosoxidans and Enterobacter cloacae, with and without Timber Waste Biochar in Maize. Sustainability. 2020; 12 (15):6286.
Chicago/Turabian StyleSubhan Danish; Muhammad Zafar-Ul-Hye; Shah Fahad; Shah Saud; Martin Brtnicky; Tereza Hammerschmiedt; Rahul Datta. 2020. "Drought Stress Alleviation by ACC Deaminase Producing Achromobacter xylosoxidans and Enterobacter cloacae, with and without Timber Waste Biochar in Maize." Sustainability 12, no. 15: 6286.
The temperature increase around the world is leading to generation of drought, which is a big threat to the productivity of crops. Abiotic stresses like drought increase the ethylene level in plants. In higher plants, 1-aminocyclopropane-1-carboxylate (ACC) is considered as the immediate precursor of ethylene biosynthesis. The application of ACC-deaminase (ACCD) possessing rhizobacteria could ameliorate the harmful results of drought stress by transforming ACC into non-harmful products. Biogas slurry (BGS) improves the water-holding capacity and structure of the soil. Thus, we speculated that the integrated application of ACCD possessing rhizobacteria and BGS might be an efficient approach to mitigate the drought stress for better wheat productivity. A field experiment was conducted under skipped irrigation situations. On the tillering stage (SIT) and flowering stage (SIF), the irrigations were skipped, whereas the recommended four irrigations were maintained in the control treatment. The results of this field experiment exposed that the ACCD possessing rhizobacterial inoculations with BGS considerably improved the stomatal and sub-stomatal conductance, transpiration and photosynthetic rates up to 98%, 46%, 38%, and 73%, respectively, compared to the respective uninoculated controls. The Pseudomonas moraviensis with BGS application improved the grain yield and plant height up to 30.3% and 24.3%, respectively, where irrigation was skipped at the tillering stage, as compared to the uninoculated controls. The data obtained revealed that the P. moraviensis inoculation + BGS treatment significantly increased the relative water content (RWC), catalase (CAT) activity, ascorbate peroxidase (APX) activity, as well as grain and shoot phosphorus contents, up to 37%, 40%, 75%, 19%, and 84%, respectively, at SIF situation. The results depicted that the P. moraviensis with BGS application under drought stress could be applied for enhancing the physiological, yield, and growth attributes of wheat.
Rizwan Yaseen; Omar Aziz; Muhammad Saleem; Muhammad Riaz; Muhammad Zafar-Ul-Hye; Muzammal Rehman; Shafaqat Ali; Muhammad Rizwan; Mohammed Nasser Alyemeni; Hamed El-Serehy; Fahad Al-Misned; Parvaiz Ahmad. Ameliorating the Drought Stress for Wheat Growth through Application of ACC-Deaminase Containing Rhizobacteria along with Biogas Slurry. Sustainability 2020, 12, 6022 .
AMA StyleRizwan Yaseen, Omar Aziz, Muhammad Saleem, Muhammad Riaz, Muhammad Zafar-Ul-Hye, Muzammal Rehman, Shafaqat Ali, Muhammad Rizwan, Mohammed Nasser Alyemeni, Hamed El-Serehy, Fahad Al-Misned, Parvaiz Ahmad. Ameliorating the Drought Stress for Wheat Growth through Application of ACC-Deaminase Containing Rhizobacteria along with Biogas Slurry. Sustainability. 2020; 12 (15):6022.
Chicago/Turabian StyleRizwan Yaseen; Omar Aziz; Muhammad Saleem; Muhammad Riaz; Muhammad Zafar-Ul-Hye; Muzammal Rehman; Shafaqat Ali; Muhammad Rizwan; Mohammed Nasser Alyemeni; Hamed El-Serehy; Fahad Al-Misned; Parvaiz Ahmad. 2020. "Ameliorating the Drought Stress for Wheat Growth through Application of ACC-Deaminase Containing Rhizobacteria along with Biogas Slurry." Sustainability 12, no. 15: 6022.
Cadmium is acute toxicity inducing heavy metal that significantly decreases the yield of crops. Due to high water solubility, it reaches the plant tissue and disturbs the uptake of macronutrients. Low uptake of nutrients in the presence of cadmium is a well-documented fact due to its antagonistic relationship with those nutrients, i.e., potassium. Furthermore, cadmium stressed plant produced a higher amount of endogenous stress ethylene, which induced negative effects on yield. However, inoculation of 1-amino cyclopropane-1-carboxylate deaminase (ACCD), producing plant growth promoting rhizobacteria (PGPR), can catabolize this stress ethylene and immobilized heavy metals to mitigate cadmium adverse effects. We conducted a study to examine the influence of ACCD PGPR on nutrients uptake and yield of bitter gourd under cadmium toxicity. Cadmium tolerant PGPRs, i.e., Stenotrophomonas maltophilia and Agrobacterium fabrum were inoculated solely and in combination with recommended nitrogen, phosphorus, and potassium fertilizers (RNPKF) applied under different concentration of soil cadmium (2 and 5 mg kg−1 soil). Results showed that A. fabrum with RNPKF showed significant positive response towards an increase in the number of bitter gourds per plant (34% and 68%), fruit length (19% and 29%), bitter gourd yield (26.5% and 21.1%), N (48% and 56%), and K (72% and 55%) concentration from the control at different concentrations of soil cadmium (2 and 5 mg kg−1 soil), respectively. In conclusion, we suggest that A. fabrum with RNPKF can more efficaciously enhance N, K, and yield of bitter gourd under cadmium toxicity.
Muhammad Zafar-Ul-Hye; Muhammad Naeem; Subhan Danish; Shah Fahad; Rahul Datta; Mazhar Abbas; Ashfaq Rahi; Martin Brtnicky; Jiří Holátko; Zahid Tarar; Muhammad Nasir. Alleviation of Cadmium Adverse Effects by Improving Nutrients Uptake in Bitter Gourd through Cadmium Tolerant Rhizobacteria. Environments 2020, 7, 54 .
AMA StyleMuhammad Zafar-Ul-Hye, Muhammad Naeem, Subhan Danish, Shah Fahad, Rahul Datta, Mazhar Abbas, Ashfaq Rahi, Martin Brtnicky, Jiří Holátko, Zahid Tarar, Muhammad Nasir. Alleviation of Cadmium Adverse Effects by Improving Nutrients Uptake in Bitter Gourd through Cadmium Tolerant Rhizobacteria. Environments. 2020; 7 (8):54.
Chicago/Turabian StyleMuhammad Zafar-Ul-Hye; Muhammad Naeem; Subhan Danish; Shah Fahad; Rahul Datta; Mazhar Abbas; Ashfaq Rahi; Martin Brtnicky; Jiří Holátko; Zahid Tarar; Muhammad Nasir. 2020. "Alleviation of Cadmium Adverse Effects by Improving Nutrients Uptake in Bitter Gourd through Cadmium Tolerant Rhizobacteria." Environments 7, no. 8: 54.
The excessive use of chemicals and inorganic fertilizers by farmers to increase crop yield is detrimental to the environment and human health. Application of biostimulants such as seaweed extract (SWE) in agriculture could be an effective and eco-friendly alternative to inorganic fertilizers. Biostimulants are natural organic degradable substances. Their application serves as a source of nutrition for crops, possibly improving growth and productivity when applied in combination with the fertilizers. The current study was conducted to evaluate the vegetative growth, reproductive behavior and quality attributes of four onion cultivars, ‘Lambada’, ‘Red Bone’, ‘Nasarpuri’, and ‘Phulkara’, in response to different concentrations of commercial SWE. Four levels of SWE extract were used, 0% (control), 0.5%, 1%, 2%, and 3%, which were applied as a foliar spray to each cultivar. The application of 0.5% SWE caused a significant increase in total soluble solids, mineral content (N, P, and K), bulb weight and yield. Application at 3% SWE increased ascorbic acid as compared to control. The cultivars responded in different ways regarding bulb dry weight and bulb and neck diameter. Among all cultivars, ‘Lambada’ showed the maximum bulb dry matter, ‘Phulkara’ showed enhanced neck diameter whereas ‘Red Bone’ showed maximum leaf length. It is concluded that 0.5% SWE increased the yield, nutrient contents, and total soluble solids (TSS) of the four onion cultivars whereas 3% SWE, the highest concentration, increased ascorbic acid in different onion cultivars.
Mazhar Abbas; Jahanzeb Anwar; Muhammad Zafar-Ul-Hye; Rashid Iqbal Khan; Muhammad Saleem; Ashfaq Ahmad Rahi; Subhan Danish; Rahul Datta. Effect of Seaweed Extract on Productivity and Quality Attributes of Four Onion Cultivars. Horticulturae 2020, 6, 28 .
AMA StyleMazhar Abbas, Jahanzeb Anwar, Muhammad Zafar-Ul-Hye, Rashid Iqbal Khan, Muhammad Saleem, Ashfaq Ahmad Rahi, Subhan Danish, Rahul Datta. Effect of Seaweed Extract on Productivity and Quality Attributes of Four Onion Cultivars. Horticulturae. 2020; 6 (2):28.
Chicago/Turabian StyleMazhar Abbas; Jahanzeb Anwar; Muhammad Zafar-Ul-Hye; Rashid Iqbal Khan; Muhammad Saleem; Ashfaq Ahmad Rahi; Subhan Danish; Rahul Datta. 2020. "Effect of Seaweed Extract on Productivity and Quality Attributes of Four Onion Cultivars." Horticulturae 6, no. 2: 28.
Most of the cereal crops are widely cultivated to fulfil the humans food requirements. Under changing climate scenario, the intensity of drought stress is continuously increasing that is adversely affecting the growth and yield of cereal crops. Although the cereals can tolerate moderate drought to some extent, but mostly they are susceptible to severe drought stress. Higher biosynthesis of ethylene under drought stress has been reported. Many scientists observed that inoculation of 1-aminocyclopropane-1-carboxylate (ACC) deaminase producing plant growth promoting rhizobacteria (PGPR) is an efficacious tool to overcome this problem. These PGPR secrete ACC deaminase which cleavage the ACC into the compounds, other than ethylene. Furthermore, secretion of growth hormones also play imperative role in enhancing the growth of the cereals under limited availability of water. In addition, the use of biochar has also been recognized as another effective amendment to grant resistance against drought. Biochar application improves the soil physiochemical attributes i.e., porosity, nutrients retention and water holding capacity which decrease the loss of water and increase its bioavailability. In recent era, the idea of coapplication of ACC deaminase producing PGPR and biochar is becoming popular which might be more efficient to use water under drought stress. The aim of current review is to combine the facts and understanding of this novel idea to grant maximum resistance to crops against drought stress. Some scientists have observed significant improvement in yield of cereal crops by combined use of ACC deaminase producing PGPR and biochar. However, more research is suggested for deep understanding of complex synergistic mechanism of ACC deaminase activity in combination with biochar.
Subhan Danish; Muhammad Zafar-Ul-Hye. Combined Role of ACC Deaminase Producing Bacteria and Biochar on Cereals Productivity under Drought. Phyton 2020, 89, 217 -227.
AMA StyleSubhan Danish, Muhammad Zafar-Ul-Hye. Combined Role of ACC Deaminase Producing Bacteria and Biochar on Cereals Productivity under Drought. Phyton. 2020; 89 (2):217-227.
Chicago/Turabian StyleSubhan Danish; Muhammad Zafar-Ul-Hye. 2020. "Combined Role of ACC Deaminase Producing Bacteria and Biochar on Cereals Productivity under Drought." Phyton 89, no. 2: 217-227.
Rhizosphere bacteria that colonize plant roots and confer beneficial effects are referred as plant growth promoting rhizobacteria (PGPR). Among all PGPR, some rhizobacteria have an ability to produce ACC deaminase enzyme. This enzyme catalyzes stress ACC into a-ketobutyrate and ammonia instead of letting it to be converted to ethylene. Ethylene level rises in plants under stress conditions i.e., drought, salinity, poor soil fertility etc. As poor soil fertility is a big hurdle to achieve the optimum yield of crops, inoculation of ACC deaminase PGPR can overcome this problem to some extent. The aim of the current study was to examine the influence of multi-strain and single-strain inoculation of different ACC deaminase producing PGPR on wheat growth and yield. There were three PGPR strains, Enterobacter cloacae, Serratia ficaria and Burkholderia phytofirmans which were used as consortia and single-strain inoculations. The results showed that inoculation of E. cloacae + S. ficaria + B. phytofirmans significantly increased plant height (63%), spike length (61%), number of spikelets spike-1 (61%), number of grains spike-1 (131%), 1000 grains weight (33%), grains yield (71%), straw yield (71%) and biological yield (68%) of wheat as compared to control. A significant improvement in N (37 and 200%), P (46 and 166%) and K (39 and 61%) of seeds and shoot respectively, validated the efficacious and more effective role of multi-strain (E. cloacae + S. ficaria + B. phytofirmans) inoculation over control. It is obviously concluded that multi-strain ACC deaminase producing PGPR inoculation is a better approach as compared to singlestrain inoculation for the improvement in growth and yield of wheat.
Muhammad Zafar-Ul-Hye; Misbah Batool Zahra; Subhan Danish; Mazhar Abbas; Abdur Rehim; Muhammad Naeem Akbar; Ayesha Iftikhar; Mehreen Gul; Ifat Nazir; Maria Abid; Muhammad Tahzeeb-Ul-Hassan; Maria Murtaza. Multi-strain Inoculation with PGPR Producing ACC Deaminase is More Effective Than Single-strain Inoculation to Improve Wheat (Triticum aestivum) Growth and Yield. Phyton 2020, 89, 405 -413.
AMA StyleMuhammad Zafar-Ul-Hye, Misbah Batool Zahra, Subhan Danish, Mazhar Abbas, Abdur Rehim, Muhammad Naeem Akbar, Ayesha Iftikhar, Mehreen Gul, Ifat Nazir, Maria Abid, Muhammad Tahzeeb-Ul-Hassan, Maria Murtaza. Multi-strain Inoculation with PGPR Producing ACC Deaminase is More Effective Than Single-strain Inoculation to Improve Wheat (Triticum aestivum) Growth and Yield. Phyton. 2020; 89 (2):405-413.
Chicago/Turabian StyleMuhammad Zafar-Ul-Hye; Misbah Batool Zahra; Subhan Danish; Mazhar Abbas; Abdur Rehim; Muhammad Naeem Akbar; Ayesha Iftikhar; Mehreen Gul; Ifat Nazir; Maria Abid; Muhammad Tahzeeb-Ul-Hassan; Maria Murtaza. 2020. "Multi-strain Inoculation with PGPR Producing ACC Deaminase is More Effective Than Single-strain Inoculation to Improve Wheat (Triticum aestivum) Growth and Yield." Phyton 89, no. 2: 405-413.
Drought stress retards wheat plant’s vegetative growth and physiological processes and results in low productivity. A stressed plant synthesizes ethylene which inhibits root elongation; however, the enzyme 1-Aminocyclopropane-1-Carboxylate (ACC) deaminase catabolizes ethylene produced under water stress. Therefore, the ACC deaminase producing plant growth promoting rhizobacteria (PGPR) can be used to enhance crop productivity under drought stress. Biochar (BC) is an organically active and potentially nutrient-rich amendment that, when applied to the soil, can increase pore volume, cation exchange capacity and nutrient retention and bioavailability. We conducted a field experiment to study the effect of drought tolerant, ACC deaminase producing PGPR (with and without timber waste BC) on plant growth and yield parameters under drought stress. Two PGPR strains, Agrobacterium fabrum or Bacillus amyloliquefaciens were applied individually and in combination with 30 Mg ha−1 BC under three levels of irrigation, i.e., recommended four irrigations (4I), three irrigations (3I) and two irrigations (2I). Combined application of B. amyloliquefaciens and 30 Mg ha−1 BC under 3I, significantly increased growth and yield traits of wheat: grain yield (36%), straw yield (50%), biological yield (40%). The same soil application under 2I resulted in greater increases in several of the growth and yield traits: grain yield (77%), straw yield (75%), above- and below-ground biomasses (77%), as compared to control; however, no significant increases in chlorophyll a, b or total, and photosynthetic rate and stomatal conductance in response to individual inoculation of a PGPR strain (without BC) were observed. Therefore, we suggest that the combined soil application of B. amyloliquefaciens and BC more effectively mitigates drought stress and improves wheat productivity as compared to any of the individual soil applications tested in this study.
Muhammad Zafar-Ul-Hye; Subhan Danish; Mazhar Abbas; Maqshoof Ahmad; Tariq Muhammad Munir. ACC Deaminase Producing PGPR Bacillus amyloliquefaciens and Agrobacterium fabrum along with Biochar Improve Wheat Productivity under Drought Stress. Agronomy 2019, 9, 343 .
AMA StyleMuhammad Zafar-Ul-Hye, Subhan Danish, Mazhar Abbas, Maqshoof Ahmad, Tariq Muhammad Munir. ACC Deaminase Producing PGPR Bacillus amyloliquefaciens and Agrobacterium fabrum along with Biochar Improve Wheat Productivity under Drought Stress. Agronomy. 2019; 9 (7):343.
Chicago/Turabian StyleMuhammad Zafar-Ul-Hye; Subhan Danish; Mazhar Abbas; Maqshoof Ahmad; Tariq Muhammad Munir. 2019. "ACC Deaminase Producing PGPR Bacillus amyloliquefaciens and Agrobacterium fabrum along with Biochar Improve Wheat Productivity under Drought Stress." Agronomy 9, no. 7: 343.
Besides other deleterious effects, drought elevates ethylene level too in plants. Increased ethylene concentration reduces root elongation and development that consequently retard plant growth and yield. There are certain PGPR which produce ACC-deaminase. The ACC-deaminase converts ACC (an immediate precursor of ethylene biosynthesis in methionine pathway in higher plants) into ammonia and α-ketobutyrate instead of ethylene. Regularization of ethylene level in plants mitigate the effects of drought. On the other hand, biochar has been reported to be rich in nutrients and exhibiting higher water holding capacity. So, a pot study was conducted with the hypothesis that the combined application of ACC-deaminase producing PGPR and biochar would minimize the drought effects on wheat growth. The ACC-deaminase producing PGPR were applied on wheat seeds in combination with two biochar doses. Three moisture levels were maintained throughout the trial. The data obtained revealed that B. amyloliquefaciens + 2BC improved the chlorophyll a, chlorophyll b, photosynthetic rate, transpiration rate, 100-grain weight, and grain N, P and K up to 114%, 123%, 118%, 73%, 59%, 58%, 18% and 23%, respectively, under drought conditions. It is concluded that co-application of PGPR and biochar is an effective technique to mitigate the drought effects.
Subhan Danish; Muhammad Zafar-Ul-Hye. Co-application of ACC-deaminase producing PGPR and timber-waste biochar improves pigments formation, growth and yield of wheat under drought stress. Scientific Reports 2019, 9, 1 -13.
AMA StyleSubhan Danish, Muhammad Zafar-Ul-Hye. Co-application of ACC-deaminase producing PGPR and timber-waste biochar improves pigments formation, growth and yield of wheat under drought stress. Scientific Reports. 2019; 9 (1):1-13.
Chicago/Turabian StyleSubhan Danish; Muhammad Zafar-Ul-Hye. 2019. "Co-application of ACC-deaminase producing PGPR and timber-waste biochar improves pigments formation, growth and yield of wheat under drought stress." Scientific Reports 9, no. 1: 1-13.
Abiotic stresses like salt stress and soil compaction are responsible for increased ethylene production which may adversely affect crop growth. A field experiment was conducted to evaluate the response of seed inoculation with ACC-deaminase containing rhizobacteria (Pseudomonas fluorescens and Pseudomonas syringae) in the presence of recommended or half of a recommended rate of inorganic fertilizers at different growth stages of fodder maize in a compacted saline-sodic soil. At both fertilizer rates, seed inoculation with P. fluorescens and P. syringae significantly improved all growth parameters over the control treatment. After 30, 60 and 75 days of sowing, treatment with recommended NPK + P. fluorescens produced a statistically maximum increase in root length, shoot length, root fresh weight and shoot fresh weight in comparison to the control and recommended NPK only. As compared to recommended NPK only, seed inoculation with P. syringae + recommended NPK increased root dry weight by 4.1, 1.7 and 2.2 folds after 30, 60 and 75 days from sowing, respectively. Similarly, over the recommended NPK only, the recommended NPK + P. fluorescens increased shoot dry weight by 1.9, 1.5 and 1.9 folds after 30, 60 and 75 days from sowing, respectively. Conclusively, seed inoculation with P. fluorescens and P. syringae enhanced maize growth in a compacted saline-sodic soil.
Zafar-Ul-Hye M; A Nasir; M Aon; S Hussain; M Ahmad; I Naz. Seed inoculation with Pseudomonas fluorescens and Pseudomonas syringae enhanced maize growth in a compacted saline-sodic soil. Phyton 2018, 87, 25 -31.
AMA StyleZafar-Ul-Hye M, A Nasir, M Aon, S Hussain, M Ahmad, I Naz. Seed inoculation with Pseudomonas fluorescens and Pseudomonas syringae enhanced maize growth in a compacted saline-sodic soil. Phyton. 2018; 87 (1):25-31.
Chicago/Turabian StyleZafar-Ul-Hye M; A Nasir; M Aon; S Hussain; M Ahmad; I Naz. 2018. "Seed inoculation with Pseudomonas fluorescens and Pseudomonas syringae enhanced maize growth in a compacted saline-sodic soil." Phyton 87, no. 1: 25-31.
Salinity is the leading abiotic stress hampering maize (Zea mays L.) growth throughout the world, especially in Pakistan. During salinity stress, the endogenous ethylene level in plants increases, which retards proper root growth and consequent shoot growth of the plants. However, certain bacteria contain the enzyme 1-aminocyclopropane-1-carboxylate (ACC) deaminase, which converts 1-aminocyclopropane-1-carboxylic acid (an immediate precursor of ethylene biosynthesis in higher plants) into ammonia and α-ketobutyrate instead of ethylene. In the present study, two Pseudomonas bacterial strains containing ACC-deaminase were tested separately and in combinations with mineral fertilizers to determine their potential to minimize/undo the effects of salinity on maize plants grown under saline-sodic field conditions. The data recorded at 30, 50 and 70 days after sowing revealed that both the Pseudomonas bacterial strains improved root and shoot length, root and shoot fresh weight, and root and shoot dry weight up to 34, 43, 35, 71, 55 and 68%, respectively, when applied without chemical fertilizers: these parameter were enhanced up to 108, 95, 100, 131, 100 and 198%, respectively, when the strains were applied along with chemical fertilizers. It can be concluded that ACC-deaminase Pseudomonas bacterial strains applied alone and in conjunction with mineral fertilizers improved the root and shoot growth of maize seedlings grown in saline-sodic soil.
Muhammad Zafar-Ul-Hye; Hafiz Muhammad Farooq; Mubshar Hussain. Bacteria in combination with fertilizers promote root and shoot growth of maize in saline-sodic soil. Brazilian Journal of Microbiology 2015, 46, 97 -102.
AMA StyleMuhammad Zafar-Ul-Hye, Hafiz Muhammad Farooq, Mubshar Hussain. Bacteria in combination with fertilizers promote root and shoot growth of maize in saline-sodic soil. Brazilian Journal of Microbiology. 2015; 46 (1):97-102.
Chicago/Turabian StyleMuhammad Zafar-Ul-Hye; Hafiz Muhammad Farooq; Mubshar Hussain. 2015. "Bacteria in combination with fertilizers promote root and shoot growth of maize in saline-sodic soil." Brazilian Journal of Microbiology 46, no. 1: 97-102.