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Consortium of Plant-Growth-Promoting Bacteria: Future Perspective in Agriculture

  • Piyush Pandey
  • Sandeep Bisht
  • Anchal Sood
  • Abhinav Aeron
  • G. D. Sharma
  • D. K. Maheshwari
Chapter

Abstract

The term “plant-growth-promoting rhizobacteria” (PGPR) include soil bacteria that colonize the roots of plants following inoculation onto seed and enhance plant growth. The bacteria useful to plants were proposed to be characterized in two general types: bacteria forming a symbiotic relationship with the plant and another the free-living ones found in the soil but are often found near, on, or even within the plant tissues. The PGPR are known to enhance growth by several direct mechanisms—like biofertilizers fix nitrogen, phytostimulators directly promote the growth of plants by the production of hormones, and several other metabolites like siderophore, ACC deaminase, etc., are produced by PGPR strains for plant growth enhancement. Also, biocontrol agents that are able to protect plants from soilborne infection by deleterious microorganisms also offer environment-friendly strategy for pest control. Recently, application of two or more PGPR as consortium is taking gain in field application worldwide. This offers multifarious approach of promoting plant growth and improve yield. In this review, the various strategies for consortium formulation are described. In fact, use of rhizobia with free-living nitrogen fixers or with phosphate solubilizers including VAM fungi has been widely reported. Also, application of biocontrol agents along with direct growth promoters is also observed as holistic approach for sustainable agriculture. Further, tailor-made consortium is sometimes designed to include other benefits like improving soil health.

Keywords

Arbuscular Mycorrhizal Induce Systemic Resistance Azospirillum Brasilense Bradyrhizobium Japonicum Paenibacillus Polymyxa 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag Berlin Heidelberg 2012

Authors and Affiliations

  • Piyush Pandey
    • 1
  • Sandeep Bisht
    • 2
  • Anchal Sood
    • 2
  • Abhinav Aeron
    • 3
  • G. D. Sharma
    • 4
  • D. K. Maheshwari
    • 5
  1. 1.Department of MicrobiologyAssam UniversitySilcharIndia
  2. 2.Department of MicrobiologyS.B.S.P.G. Institute of Biomedical Sciences and ResearchDehradunIndia
  3. 3.Department of Microbiology, Faculty of Life SciencesKurukshetra UniversityKurukshetraIndia
  4. 4.Department of Life sciences and BioinformaticsAssam UniversitySilcharIndia
  5. 5.Department of Botany and Microbiology, Faculty of Life SciencesGurukul Kangri UniversityHaridwarIndia

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