Enhancement of drought stress tolerance in crops by plant growth promoting rhizobacteria

被引：682

作者：

Vurukonda, Sai Shiva Krishna Prasad ^{[1
]}

Vardharajula, Sandhya ^{[1
]}

Shrivastava, Manjari ^{[1
]}

SkZ, Ali ^{[1
]}

机构：

[1] Agri Biotech Fdn, Dept Microbiol, PJTS Agr Univ Campus, Hyderabad 500030, Telangana State, India

来源：

MICROBIOLOGICAL RESEARCH | 2016年 / 184卷

关键词：

Drought stress; Plant growth promoting rhizobacteria; Induced Systemic tolerance; Adaptation; Mitigation; VITIS-VINIFERA L; PHASEOLUS-VULGARIS L; MAIZE ZEA-MAYS; AZOSPIRILLUM-BRASILENSE; ACC-DEAMINASE; OSMOTIC-STRESS; ABIOTIC STRESS; WATER-STRESS; ENDOPHYTIC COLONIZATION; PAENIBACILLUS-POLYMYXA;

D O I：

10.1016/j.micres.2015.12.003

中图分类号：

Q93 [微生物学];

学科分类号：

071005 ; 100705 ;

摘要：

Drought is one of the major constraints on agricultural productivity worldwide and is likely to further increase. Several adaptations and mitigation strategies are required to cope with drought stress. Plant growth promoting rhizobacteria (PGPR) could play a significant role in alleviation of drought stress in plants. These beneficial microorganisms colonize the rhizosphere/endo-rhizosphere of plants and impart drought tolerance by producing exopolysaccharides (EPS), phytohormones, 1-aminocyclopropane-1-carboxylate (ACC) deaminase, volatile compounds, inducing accumulation of osmolytes, antioxidants, upregulation or down regulation of stress responsive genes and alteration in root morphology in acquisition of drought tolerance. The term Induced Systemic Tolerance (IST) was coined for physical and chemical changes induced by microorganisms in plants which results in enhanced tolerance to drought stresses. In the present review we elaborate on the role of PGPR in helping plants to cope with drought stress. (C) 2015 Elsevier GmbH. All rights reserved.

引用

页码：13 / 24

页数：12

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