Plant growth-promoting rhizobacteria reduce adverse effects of salinity and osmotic stress by regulating phytohormones and antioxidants in Cucumis sativus
Sang-Mo Kang,Abdul Latif Khan,Muhammad Waqas,Young-Hyun You,Jin-Ho Kim,Jong-Guk Kim,Muhammad Hamayun,In-Jung Lee +7 more
TL;DR: The PGPR application might be used in marginalized agricultural lands to increase crop productivity because of its ameliorative effects on biomass and chlorophyll contents under salinity and drought stress.
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Abstract: We assessed the role of plant growth-promoting rhizobacteria (PGPR) strains viz. Burkholdera cepacia SE4, Promicromonospora sp. SE188 and Acinetobacter calcoaceticus SE370 in counteracting salinity and drought stress to cucumber plants. The control plants had stunted growth, while PGPR-treated plants had significantly higher biomass and chlorophyll contents under salinity and drought stress. The ameliorative effects of PGPR-application were also evidenced by the increased water potential and decreased electrolytic leakage. The PGPR-applied plants had reduced sodium ion concentration, while the potassium and phosphorus were abundantly present as compared to control under stress. Oxidative stress was mitigated by PGPR through reduced activities of catalase, peroxidase, polyphenol oxidase, and total polyphenol as compared to control. The control plants showed up-regulation of stress-responsive abscisic acid as compared to PGPR application, while salicylic acid and gibberellin 4 were significantly higher in P...
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Municipal solid waste management and landfilling technologies: a review
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TL;DR: In this article, the impact of landfill conditions such as construction, geometry, weather, temperature, moisture, pH, biodegradable matter and hydrogeological parameters on the generation of landfill gases and leachate is reviewed.
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Use of plant growth promoting rhizobacteria (PGPRs) with multiple plant growth promoting traits in stress agriculture: Action mechanisms and future prospects
TL;DR: Generally, ACC deaminase and IAA-producing bacteria can be a good option for optimal crop production and production of bio-fertilizers in the future due to having multiple potentials in alleviating stresses of salinity, drought, nutrient imbalance, and heavy metals toxicity in plants.
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Root exudates: from plant to rhizosphere and beyond
TL;DR: Since root exudates play an important role in the recruitment of mycorrhizal fungi and plant growth-promoting rhizobacteria (PGPR), the mechanisms of interaction between plants and the beneficial microbiota have been highlighted.
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Plant growth promoting bacteria as an alternative strategy for salt tolerance in plants: A review.
Muhammad Numan,Muhammad Numan,Samina Bashir,Yasmin Khan,Roqayya Mumtaz,Zabta Khan Shinwari,Abdul Latif Khan,Ajmal Khan,Ahmed Al-Harrasi +8 more
TL;DR: It can be concluded that PGPB can be used as a cost effective and economical tool for salinity tolerance and growth promotion in plants.
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Plant Growth Promoting Rhizobacteria in Amelioration of Salinity Stress: A Systems Biology Perspective.
TL;DR: This review intends to elucidate the understanding of salinity tolerance mechanisms attributed by plant growth promoting rhizobacteria (PGPR) and application of PGPR inoculants is a promising measure to combat salinity in agricultural fields, thereby increasing global food production.
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