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In Vitro Evaluation of PGPR Strains for Their Biocontrol Potential Against Fungal Pathogens

  • Urja PandyaEmail author
  • Meenu Saraf
Chapter

Abstract

Crop protection has become a basic requirement of the sustainable agriculture to ensure increased crop production. Biological control has been actively practiced as a crop protection measure for more than five decades and the history of biocontrol, its successes and failures, have been extensively reviewed. Plant growth promoting rhizobacteria (PGPR) are an important group of microorganisms, which play a major role in the biocontrol of plant pathogens. All plant-associated microenvironments, especially the rhizosphere, are colonized in high abundances by antagonistic microbes. Between 1 and 35 % of the microbial inhabitants show antagonistic capacity to inhibit the growth of pathogens in vitro by various biocontrol mechanisms that include production of antibiotics, siderophores, lytic enzymes, HCN and induced systemic resistance. In recent years, the popularity of biocontrol agents has increased substantially, as extensive and systematic research has enhanced their effectiveness and consistency.

Keywords

Biocontrol Plant growth promoting rhizobacteria (PGPR) Siderophores HCN Induced systemic resistance 

Notes

Acknowledgments

We gratefully acknowledge the financial support by the Department of Science and Technology (DST), New Delhi under Women Scientist Scheme (WOS-A).

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© Springer India 2014

Authors and Affiliations

  1. 1.Department of MicrobiologyUniversity School of Sciences, Gujarat UniversityAhmedabadIndia

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