title: Role of allelochemicals in plant growth promoting rhizobacteria for biocontrol of phytopathogens.
abstract: Soil borne fungal diseases pose serious constraints on agro-productivity. Biological control is non-hazardous strategy to control plant pathogens and improve crop productivity. PGPR (plant growth promoting rhizobacteria) have long been used as plant disease control agents. PGPR produced a wide range of secondary compounds that may act as signals--that is, allelochemicals that include metabolites, siderophores, antibiotics, volatile metabolites, enzymes and others. Their mode of action and molecular mechanisms provide a great awareness for their application for crop disease management. The present review highlights the role of PGPR strains, specifically referring to allelochemicals produced and molecular mechanisms. Further research to fine tune combinations of allelochemicals, plant-microbe-pathogen interaction will ultimately lead to better disease control.
authors.affiliation: Department of Microbiology and Biotechnology, University School of Sciences, Gujarat University, Ahmedabad 380013, Gujarat, India. Electronic address: sarafmeenu@gmail.com.
authors.forename: Meenu
authors.initials: M
authors.lastname: Saraf
authors.forename: Urja
authors.initials: U
authors.lastname: Pandya
authors.forename: Aarti
authors.initials: A
authors.lastname: Thakkar
mesh_terms: D001419:Bacteria / Q000378:metabolism*; D056265:Microbial Interactions; D010572:Pest Control, Biological; D010675:Pheromones / Q000378:metabolism*; D063245:Plant Development / Q000187:drug effects*; D010935:Plant Diseases / Q000517:prevention & control*; D010944:Plants / Q000382:microbiology*
chemical_list: D010675:Pheromones
keywords: Allelochemicals; Biological control; Integrated plant disease management; Microbial antagonism