The Effect of Bacterial Secondary Metabolites on Bacterial and Fungal Pathogens of Rice

  • P. Velusamy
  • S. S. Gnanamanickam
Part of the Soil Biology book series (SOILBIOL, volume 14)

Certain antagonistic bacteria are considered ideal biological control agents owing to their rapid growth, easy handling and aggressive colonization of the rhizosphere. These bacteria may mediate biocontrol by one or more of the several mechanisms of disease suppression (Weller 1988). A primary mechanism of pathogen inhibition is by the production of secondary metabolites and other factors such as siderophore production and microbial cyanide, and lytic enzymes may also play a role (Fravel 1988; Keel et al. 1992; O’Sullivan and O’Gara 1992). These bacteria are involved in the biological control of bacterial, fungal, and viral diseases of plants.


Bacterial Blight Rhizoctonia Solani Sheath Blight Bacterial Leaf Blight Antagonistic Bacterium 
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Copyright information

© Springer-Verlag Berlin Heidelberg 2008

Authors and Affiliations

  • P. Velusamy
    • 1
  • S. S. Gnanamanickam
  1. 1.Centre for Advanced Studies in BotanyUniversity of MadrasChennaiIndia

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