Shreshtha Kumar, Prakash Aman, Pandey Prashant Kumar, Pal Arun Kumar, Singh Jyotsna, Tripathi Pooja, Mitra Debasis, Jaiswal Durgesh Kumar, Santos-Villalobos Sergio de Los, Tripathi Vijay
Department of Molecular and Cellular Engineering, Jacob Institute of Biotechnology and Bioengineering, Sam Higginbottom University of Agriculture, Technology and Sciences, Prayagraj, U.P., 211007, India.
Department of Computational Biology and Bioinformatics, Jacob Institute of Biotechnology and Bioengineering, Sam Higginbottom University of Agriculture, Technology and Sciences, Prayagraj, U.P., 211007, India.
Curr Res Microb Sci. 2024 Nov 15;8:100319. doi: 10.1016/j.crmicr.2024.100319. eCollection 2025.
Plant growth-promoting rhizobia (PGPR) helps plants grow and develop by protecting them from abiotic and biotic stresses, increasing the synthesis of chemicals that promote growth, and enabling the uptake of nutrients. Drought is one of the biggest problems throughout the world. The search for novel and efficient drought-resistant microorganisms that reduce the adverse effects executed by drought is a significant alternative. This study aimed to isolate and characterize PGPR strains from the cactus plant's rhizosphere, cultivated in the semi-arid Shankargarh district of Uttar Pradesh, India. Tests for plant growth-promoting activity, such as the generation of indole acetic acid (IAA), phosphate solubilization, ammonia, carboxymethyl cellulase, and protease activity, were performed on all bacterial isolates. There were 246 bacterial strains isolated from the rhizospheric zone, and only 16.6 % showed drought resistance and various plant growth-promoting traits. The sp. strain promoted the growth promotion of under water stress (30 % field capacity). Additionally, . isolates, with their potential for drought tolerance and plant growth promotion, could be applied in sustainable agriculture to enhance crop yield and resilience to water scarcity.
植物促生根际细菌（PGPR）通过保护植物免受非生物和生物胁迫、增加促进生长的化学物质的合成以及促进养分吸收来帮助植物生长和发育。干旱是全球最大的问题之一。寻找能够减少干旱负面影响的新型高效抗旱微生物是一种重要的选择。本研究旨在从印度北方邦半干旱的尚卡尔加德地区种植的仙人掌植物根际分离和鉴定PGPR菌株。对所有细菌分离株进行了植物促生长活性测试，如吲哚乙酸（IAA）的产生、磷溶解、氨、羧甲基纤维素酶和蛋白酶活性。从根际区域分离出246株细菌菌株，只有16.6%表现出抗旱性和各种植物促生长特性。该菌株在水分胁迫（30%田间持水量）下促进了的生长。此外，具有耐旱性和促进植物生长潜力的分离株可应用于可持续农业，以提高作物产量和对缺水的恢复力。
