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Delineation of mechanistic approaches of rhizosphere microorganisms facilitated plant health and resilience under challenging conditions


Sustainable agriculture demands the balanced use of inorganic, organic, and microbial biofertilizers for enhanced plant productivity and soil fertility. Plant growth-enhancing rhizospheric bacteria can be an excellent biotechnological tool to augment plant productivity in different agricultural setups. We present an overview of microbial mechanisms which directly or indirectly contribute to plant growth, health, and development under highly variable environmental conditions. The rhizosphere microbiomes promote plant growth, suppress pathogens and nematodes, prime plants immunity, and alleviate abiotic stress. The prospective of beneficial rhizobacteria to facilitate plant growth is of primary importance, particularly under abiotic and biotic stresses. Such microbe can promote plant health, tolerate stress, even remediate soil pollutants, and suppress phytopathogens. Providing extra facts and a superior understanding of microbial traits underlying plant growth promotion can stir the development of microbial-based innovative solutions for the betterment of agriculture. Furthermore, the application of novel scientific approaches for facilitating the design of crop-specific microbial biofertilizers is discussed. In this context, we have highlighted the exercise of “multi-omics” methods for assessing the microbiome's impact on plant growth, health, and overall fitness via analyzing biochemical, physiological, and molecular facets. Furthermore, the role of clustered regularly interspaced short palindromic repeats (CRISPR) based genome alteration and nanotechnology for improving the agronomic performance and rhizosphere microbiome is also briefed. In a nutshell, the paper summarizes the recent vital molecular processes that underlie the different beneficial plant–microbe interactions imperative for enhancing plant fitness and resilience under-challenged agriculture.

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No kind of funding is received for the present review. We are thankful to all the researchers globally, who are working in the area of plant growth-promoting microorganisms and sustainable agriculture.

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AD, PM, HM, and SB performed the content outline, literature collection, writing of paper and supervision and monitoring of the manuscript. MBS, YK and UK collected literature and wrote relevant section in the manuscript. All authors read and approved the fnal manuscript.

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Correspondence to Ajinath Dukare.

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Dukare, A., Mhatre, P., Maheshwari, H.S. et al. Delineation of mechanistic approaches of rhizosphere microorganisms facilitated plant health and resilience under challenging conditions. 3 Biotech 12, 57 (2022).

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