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<p>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, as potent plant growth-promoting rhizobacteria (PGPR), emerge as viable cold-active bioinoculants for sustainable nutrient management in high-altitude crop cultivation. This perspective aims to document the Actinobacterial metabolic diversity in the glacier bionetwork lying in the North-Eastern and North-Western Himalayan region. A comparative functional bioinformatics study of plant growth-promoting genes demonstrated distinct clustering of Himalayan versus non-Himalayan strains, driven by alanine/aspartate/glutamate metabolism, geraniol degradation, and pyruvate metabolism. This pioneering genomic differentiation of Himalayan actinomycetes from other cold habitats highlights unique cold-tolerance and plant growth-promoting factors that may target particular functionality for crop cultivation in the extreme glacier environment.</p>

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Indigenous actinomycetes of the Himalaya: current knowledge and a bioinformatics perspective on plant growth-promoting and cold-tolerance traits

  • 期刊论文

  • 发表日期：

    2026年5月13日

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  • Triparna Mukherjee,
  • Sanjukta Dasgupta,
  • Dhruba Bhattacharya,
  • Rudra Prasad Mondal,
  • Sangita Mondal,
  • Abhrajyoti Ghosh

摘要

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, as potent plant growth-promoting rhizobacteria (PGPR), emerge as viable cold-active bioinoculants for sustainable nutrient management in high-altitude crop cultivation. This perspective aims to document the Actinobacterial metabolic diversity in the glacier bionetwork lying in the North-Eastern and North-Western Himalayan region. A comparative functional bioinformatics study of plant growth-promoting genes demonstrated distinct clustering of Himalayan versus non-Himalayan strains, driven by alanine/aspartate/glutamate metabolism, geraniol degradation, and pyruvate metabolism. This pioneering genomic differentiation of Himalayan actinomycetes from other cold habitats highlights unique cold-tolerance and plant growth-promoting factors that may target particular functionality for crop cultivation in the extreme glacier environment.