The contrivance of plant growth promoting microbes to mitigate climate change impact in agriculture
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Date
2021
Journal Title
Journal ISSN
Volume Title
Publisher
Microorganisms
Abstract
Combating the consequences of climate change is extremely important and critical in the
context of feeding the world’s population. Crop simulation models have been extensively studied
recently to investigate the impact of climate change on agricultural productivity and food security.
Drought and salinity are major environmental stresses that cause changes in the physiological,
biochemical, and molecular processes in plants, resulting in significant crop productivity losses.
Excessive use of chemicals has become a severe threat to human health and the environment. The use
of beneficial microorganisms is an environmentally friendly method of increasing crop yield under
environmental stress conditions. These microbes enhance plant growth through various mechanisms
such as production of hormones, ACC deaminase, VOCs and EPS, and modulate hormone synthesis
and other metabolites in plants. This review aims to decipher the effect of plant growth promoting
bacteria (PGPB) on plant health under abiotic soil stresses associated with global climate change (viz.,
drought and salinity). The application of stress-resistant PGPB may not only help in the combating
the effects of abiotic stressors, but also lead to mitigation of climate change. More thorough molecular
level studies are needed in the future to assess their cumulative influence on plant development.
Description
Keywords
abiotic stress; salinity stress; drought stress; plant-microbe interaction; sustainable agriculture