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Plant Growth-Promoting Rhizobacteria (PGPRs): A Fruitful Resource

  • Bhupendra Koul
  • Simranjeet Singh
  • Daljeet Singh Dhanjal
  • Joginder SinghEmail author
Chapter

Abstract

The rhizosphere is a unique zone because of its richness in comparison to the nearby soil areas and the accumulation of a variety of organic compounds secreted by the root through exudation and rhizodeposition. Rhizobacteria use rhizosphere as their niche. Rhizospheric microbial communities are members of a complex food web utilizing a huge amount of plant-released nutrients, affecting the carbon flow and transformation. The rhizospheric regions provide a congenial environment for the multiplication and metabolic activity of various microorganisms, through a variety of plant-released compounds like amino acids, sugars, and growth factors, that provide energy and nutrients to the microorganisms. Several rhizobacteria exhibits a commensal relationship with the host-plant, therefore does not effect its physiology and growth. Plant growth-promoting rhizobacteria (PGPRs) came into limelight after its sustainable agricultural and environment-friendly practices to serve the increased population. PGPRs are supposed to replace artificial growth regulators, chemical fertilizers, and pesticides which impose various adverse effects on sustainable agriculture. Innovative research and deep insight of the mechanism of PGPR-associated phytostimulation would enable us to find the way to isolate or develop a competent rhizobacterial strain which could sustain itself in varied agroecological conditions. With the advancements in technology and research, worldwide utilization of PGPRs will become a reality, which shall  ensure the stability as well as productivity of agro-ecosystems for guiding us on the road to an ideal agricultural system.

Keywords

Rhizobacteria Rhizosphere Function Benefits 

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© Springer Nature Singapore Pte Ltd. 2019

Authors and Affiliations

  • Bhupendra Koul
    • 1
  • Simranjeet Singh
    • 1
  • Daljeet Singh Dhanjal
    • 1
  • Joginder Singh
    • 1
    Email author
  1. 1.Department of Biotechnology, School of Bioengineering and BiosciencesLovely Professional UniversityPhagwaraIndia

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