Indigenous actinomycetes of the Himalaya: current knowledge and a bioinformatics perspective on plant growth-promoting and cold-tolerance traits.
Mukherjee T, Dasgupta S, Bhattacharya D, Mondal RP, Mondal S
Soil Health
Mountain farmers growing crops at extreme elevations — where most commercial fertilizers simply stop working in the cold — could soon have access to soil microbes native to those very glaciers, microbes that have spent millennia learning to thrive in the freeze.
Most fertilizer microbes go dormant in cold weather and stop helping plants grow. Scientists found special bacteria living in Himalayan glaciers that stay active even in freezing conditions and can still feed and support plant roots. By comparing these bacteria's genes to similar cold-climate microbes from other parts of the world, they discovered the Himalayan strains have a genuinely unique toolkit — suggesting they could be developed into fertilizers that actually work in high-altitude farming.
Key Findings
Cold-adapted Actinobacteria from Himalayan glaciers remain metabolically active at low temperatures where standard biofertilizers fail.
Genomic comparison showed Himalayan strains cluster distinctly from non-Himalayan cold-habitat strains, driven by differences in alanine/aspartate/glutamate metabolism, geraniol degradation, and pyruvate metabolism.
This is described as a pioneering genomic differentiation of Himalayan actinomycetes, establishing a foundation for developing cold-active bioinoculants for high-altitude crop cultivation.
chevron_right Technical Summary
Researchers identified cold-adapted soil bacteria from Himalayan glaciers that can help plants grow in freezing conditions, potentially replacing standard biofertilizers that fail at high altitudes. Genetic analysis revealed these bacteria have unique metabolic traits that distinguish them from similar cold-habitat microbes worldwide.
Abstract Preview
Biofertilizers used in saleable formulations perform poorly in cold Himalayan regions owing to the suppressed metabolic activity of bioinoculants under low temperatures. Cold-adapted Actinobacteria...
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