Abstract:
Soil microbial diversity is a key indicator of soil health and fertility. The main drivers of soil ecosystems include plant and soil type, and environmental conditions govern all factors. There is a dire need to explore beneficial microbial responses for managing the risks to sustainable agriculture in an environment threatened by climate change. Soil is a limited resource, and environmental stresses decrease agricultural productivity day by day. To check the effect of environmental stresses like drought, salinity, and heavy metal on soil microbial biodiversity and testing the efficacy of tolerant Plant Growth Promoting Rhizobacteria alone and in combination with effective soil amendment techniques for improving plant growth under predicted abiotic stresses of climatic change. Experiments were conducted to isolate and characterize stress-tolerant Rhizobacteria and to check their stress mitigation potential. Modified plant biomasses like compost, biochar, and bio-organic fertilizer were used as soil amendments techniques. Various morphological, physiological, biochemical, growth and productivity parameters were studied. Microbial strains were isolated from the stressed region. The identification of isolated microbial strains was carried out by physiochemical and 16s rDNA sequencing and phylogenetic analysis. Stress tolerance and different plant growthpromoting traits of isolated strains were evaluated under normal and stress conditions. Inoculation of seeds with PGPR along with compost, biochar, and bio-organic fertilizer improved all growth and productivity parameters, increased nutrient status, and improved osmolyte production and hence helping the survival and growth under stress conditions. Microorganisms have a variety of evolutionary adaptations and physiological acclimation mechanisms that allow them to survive and remain active in the face of environmental stress. Building our understanding of the interdependence of microorganism communities, ecological pressures, and plant responses will be necessary for understanding climatic effects on soil health and plant growth. Our new understanding of microbial diversity in response to environmental stresses will allow us to cure and conserve our environment and grow more food.
Page(s):
0-0
DOI:
DOI not available
Published:
Journal: First International Conference on Revamped Scientific Outlook of 21st Century (Abstract Book), Volume: 0, Issue: 0, Year: 2022
Keywords:
Diversity
,
Soil microbes
,
PGPR
,
Crop improvement