Plant Growth-Promoting Rhizobacteria for Abiotic Stress Alleviation in Crops

  • Sangeeta Paul
  • Ajinath S. Dukare
  • Bandeppa
  • B. S. Manjunatha
  • K. AnnapurnaEmail author
Part of the Microorganisms for Sustainability book series (MICRO, volume 4)


Environmental stresses pose a major constraint to agricultural productivity. Studies have indicated an immense potential of plant growth-promoting rhizobacteria (PGPRs) in the mitigation of different abiotic stresses in crops such as temperature, salinity, drought, heavy metal toxicity, etc. Improved plant growth and yield; and enhanced tolerance to various abiotic stresses due to inoculation with PGPRs have been noted in different plants. PGPRs mitigate environmental stress in plants through an array of mechanisms which include phytohormone production, induced systemic tolerance through modulation of physiological responses, osmotic adjustments through production of osmolytes, ACC deaminase activity, exopolysaccharide production, improvement in soil physicochemical properties, production of volatile organic carbon compounds, and induction of stress-responsive genes. Screening, selection, and use of abiotic stress-tolerant PGPRs as bioinoculants are a promising strategies for enhancing crop productivity under stressed environments.


Plant growth-promoting rhizobacteria Abiotic stress alleviation Induced systemic tolerance Hormonal homeostasis ACC deaminase activity 


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Copyright information

© Springer Nature Singapore Pte Ltd. 2017

Authors and Affiliations

  • Sangeeta Paul
    • 1
  • Ajinath S. Dukare
    • 2
  • Bandeppa
    • 3
  • B. S. Manjunatha
    • 1
  • K. Annapurna
    • 1
    Email author
  1. 1.Division of MicrobiologyICAR-Indian Agricultural Research InstituteNew DelhiIndia
  2. 2.Division of Horticulture Crop ProcessingICAR-Central Institute of Post-Harvest Engineering & TechnologyAboharIndia
  3. 3.Division of Soil ScienceICAR-Indian Institute of Rice ResearchHyderabadIndia

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