PDF(Pubmed)
Abstract：
In the present study, ten (10) selected bacteria isolated from chasmophytic wild Chenopodium were evaluated for alleviation of drought stress in chickpea. All the bacterial cultures were potential P, K and Zn solubilizer. About 50% of the bacteria could produce Indole-3-acetic acid (IAA) and 1-aminocyclopropane-1-carboxylate (ACC) deaminase. The bacteria showed wide range of tolerance towards pH, salinity, temperature and osmotic stress. Bacillus paralicheniformis L38, Pseudomonas sp. LN75, Enterobacter hormachei subsp. xiangfengensis LJ89, B. paramycoides L17 and Micrococcus luteus LA9 significantly improved growth and nutrient (N, P, K, Fe and Zn) content in chickpea under water stress during a green house experiment conducted following a completely randomized design (CRD). Application of Microbacterium imperiale LJ10, B. stercoris LN74, Pseudomonas sp. LN75, B. paralicheniformis L38 and E. hormachei subsp. xiangfengensis LJ89 reduced the antioxidant enzymes under water stress. During field experiments conducted following randomized block design (RBD), all the bacterial inoculations improved chickpea yield under water stress. Highest yield (1363 kg ha-1) was obtained in plants inoculated with Pseudomonas sp. LN75. Pseudomonas sp. LN75, B. paralicheniformis L38 and E. hormachei subsp. xiangfengensis LJ89 have potential as microbial stimulants to alleviate the water stress in chickpea. To the best of our knowledge this is the first report of using chasmophyte associated bacteria for alleviation of water stress in a crop plant.
摘要：
在本研究中,评估了从鹰嘴豆野生Chenopodium中分离出的十（10）种选定的细菌，以减轻鹰嘴豆的干旱胁迫。所有细菌培养物都是潜在的P，K和Zn增溶剂。约50％的细菌可产生吲哚-3-乙酸（IAA）和1-氨基环丙烷-1-羧酸（ACC）脱氨酶。这些细菌对pH表现出广泛的耐受性，盐度,温度和渗透胁迫。副衣芽孢杆菌L38，假单胞菌属。LN75，Hormachei肠杆菌亚种。xiangfengensisLJ89，副乳杆菌L17和藤黄微球菌LA9显着改善了生长和营养（N，P,K,在完全随机设计（CRD）进行的温室试验中，在水分胁迫下鹰嘴豆中的Fe和Zn）含量。微杆菌的应用影响LJ10，双歧杆菌LN74，假单胞菌。LN75,B.paricheniformisL38和E.hormachei亚种。香芬根草LJ89降低了水分胁迫下的抗氧化酶。在随机区组设计(RBD)后进行的现场实验中，在水分胁迫下，所有细菌接种都提高了鹰嘴豆的产量。在接种假单胞菌的植物中获得了最高的产量（1363kgha-1）。LN75.假单胞菌。LN75,B.paricheniformisL38和E.hormachei亚种。xiangfengensisLJ89具有作为微生物刺激剂缓解鹰嘴豆水分胁迫的潜力。据我们所知，这是有关使用触虫相关细菌减轻农作物水分胁迫的第一份报告。
