Title : Emerging bio-inoculants: An eco-smart strategy for mitigating biotic and abiotic stresses under changing climatic conditions
Abstract:
Soil salinization represents a rapidly intensifying global challenge, threatening food security by impairing nearly 20% and 33% of cultivated and irrigated agricultural lands and causing an estimated annual loss of USD 27.3 billion in crop production. Conventional remediation strategies including deployment of salt-tolerant varieties, soil scrapping, flushing, leaching, and chemical amendments often provide limited or inconsistent benefits, necessitating more sustainable and biologically resilient solutions. Beneficial plant-associated microbes, particularly salt-tolerant plant growth-promoting rhizobacteria (PGPR), have emerged as eco-smart tools capable of enhancing crop performance under saline conditions while maintaining soil health. Advances in genomics, transcriptomics, proteomics, and metabolomics have significantly broadened our understanding of microbial diversity, metabolic capabilities, and functional interactions within the rhizosphere.
Numerous salt-tolerant microbial genera isolated from cereals, legumes, vegetables, and oilseed crops demonstrate remarkable abilities to enhance nutrient acquisition, regulate phytohormones, and mitigate biotic and abiotic stresses, including salinity. Recent research highlights that synergistic microbial consortia offer superior benefits compared to individual strains, reinforcing the importance of community-based interactions. Emerging strategies such as rhizosphere microbiome engineering, interactome network analysis, and protein-protein interaction mapping (e.g., split-ubiquitin systems) are enabling precise manipulation of plant-microbe communication for tailored stress resilience. Realizing the full potential of these innovations will require coordinated interdisciplinary collaboration among researchers, industries, and farming communities. This abstract emphasizes the transformative role of salt-tolerant microbial communities and microbiome engineering in strengthening plant salt tolerance and advancing sustainable agricultural productivity under increasingly saline and climate-stressed environments.
Keywords: Soil salinity; Rhizosphere microbiome; Multi-omics approaches; sustainable agriculture; plant-microbe interactions.

