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Role of Rhizobacteria in Drought Tolerance

  • Meghmala Waghmode
  • Aparna Gunjal
  • Neha Patil
  • Neelu Nawani
Chapter
Part of the Microorganisms for Sustainability book series (MICRO, volume 12)

Abstract

Drought is the most destructive abiotic stress affecting the world’s food security. Rhizospheric and endophytic bacteria produce range of enzymes and metabolites, which help the plants to tolerate abiotic stress. Induced systemic resistance gets developed in plants surviving in drought conditions. Drought tolerance is induced in crops due to the production of exopolysaccharides, phytohormones like gibberellic acid, cytokinins, abscisic acid, and IAA, ACC deaminase, antioxidants, osmolytes, and volatile compounds. Plants in drought conditions survive due to rhizobacteria enhancing photosynthetic activity. PGPR improves the growth, antioxidant activity, and photosynthetic activity of the crops in drought conditions. Rhizobacteria assist in resource attainment, i.e., nitrogen, phosphorus, and essential minerals by changing the root morphology, improving the soil structure, and bioremediation of the polluted soils.

Keywords

Exopolysaccharides Phytohormones Antioxidant Indole-3-acetic acid Bioremediation 

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Copyright information

© Springer Nature Singapore Pte Ltd. 2019

Authors and Affiliations

  • Meghmala Waghmode
    • 1
  • Aparna Gunjal
    • 2
  • Neha Patil
    • 1
  • Neelu Nawani
    • 3
  1. 1.Department of MicrobiologyAnnasaheb Magar MahavidyalayaHadapsar, PuneIndia
  2. 2.Department of Environmental ScienceHaribhai V. Desai CollegePuneIndia
  3. 3.Dr. D. Y. Patil Vidyapeeth’s Dr. D. Y. Patil Biotechnology & Bioinformatics InstituteTathawade, PuneIndia

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