National Academy of Agricultural Sciences (NAAS)
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PRINT ISSN : 2319-7692
Online ISSN : 2319-7706 Issues : 12 per year Publisher : Excellent Publishers Email : editorijcmas@gmail.com / submit@ijcmas.com Editor-in-chief: Dr.M.Prakash Index Copernicus ICV 2018: 95.39 NAAS RATING 2020: 5.38 |
Abiotic stresses are major constrains which adversely affect the plant growth and productivity. Among all abiotic stresses, drought is considered as one of the major constraints on agricultural productivity worldwide and is likely to further increase. Hence the need of the hour is to formulate the strategies that can minimize the loss in crop production under drought conditions. One of them being the exploitation of soil microbes which have the capacity to overcome the adverse effects of drought stress. In the current scenario, microbial role in plant adaptation towards drought stress is gaining more attention. In this regard plant growth promoting rhizobacteria (PGPR) can be employed to mitigate the drought adversities in the plants. This review deals with the mechanisms through which the PGPR minimize the harmful effects of drought stress in plants. In several studies it has been reported that these beneficial microorganisms colonize the plant rhizosphere and impart drought tolerance by altering the level of plant hormones like IAA (indole acetic acid) and ABA (absissic acid), enzymes like ACC (1-amino, cyclo propane 1-carboxylic acid) deaminase, promoting root growth and nutrient uptake, inducing accumulation of osmolytes and antioxidants.
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