Halophilic bacteria and archaea in salinity-resilient agriculture: mechanisms and multi-omics perspectives.
Jadhav LR, Jyoti A, Singh V, Sharma C, Siddiqui AJ
Soil Health
PubMedThe vegetables and grains at your grocery store increasingly come from soils turning salty due to irrigation and climate change — these salt-loving microbes could be the natural fix that keeps those crops growing without more chemicals.
As farmland around the world becomes too salty for crops to grow well, scientists are looking at tiny organisms that actually love salt and can survive in extremely salty places. These microbes naturally help nearby plants by producing growth hormones, unlocking nutrients in the soil, and shielding roots from salt damage. Researchers are now using modern DNA analysis tools to understand exactly how these microbes work, with the goal of turning them into natural soil treatments farmers can apply instead of chemical fertilizers.
Key Findings
Halophilic bacteria and archaea produce protective compounds (including amino acids and glycine betaines) that shield plant roots from salt stress, offering a mechanism-backed alternative to synthetic fertilizers
These microbes promote plant growth through at least two distinct pathways: direct actions like producing plant hormones and fixing nitrogen, and indirect actions like generating antimicrobial compounds and triggering plants' own immune defenses
Combining nano-encapsulated halophilic bacteria with biochar is identified as a particularly effective delivery strategy for getting these microbes to work in degraded, salt-affected soils
chevron_right Technical Summary
Salt-loving microbes called halophiles can be harnessed as natural soil treatments to help crops survive increasingly salty farmland caused by climate change and overuse of irrigation. This review maps out how these microbes work and how cutting-edge genetic analysis can accelerate their use as eco-friendly alternatives to chemical fertilizers.
Abstract Preview
Soil salinization due to anthropogenic activity and climate change is a bottleneck to the global agricultural yield and food security. Conventional approaches for mitigating salt stress, including ...
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