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Revista Colombiana de Biotecnología

Print version ISSN 0123-3475

Abstract

ROJAS BADIA, Marcia M.. Quorum sensing in beneficial plant-bacteria associations. Rev. colomb. biotecnol [online]. 2011, vol.13, n.2, pp.135-143. ISSN 0123-3475.

The quorum sensing is a common attribute in some bacterial species. Currently, several signals and new regulation systems are describing and the researchers are very interested in the cell-cell communication based on quorum sensing mechanism. In the natural environments several bacteria are living together, then several types of signal molecules are using. The acylhomoserines lactones (AHLs), are predominant, but a wide range of molecules are involved in cell-cell communication. To detect, characterization and quantification of signals numerous bioassays and sensors systems were developed. It were demonstrated the action of signals molecules in the rhizosphere colonization, swarming, symbiotic interactions and the capacity to break the signaling process of another microorganism in the same environment. These potentialities of bacteria would be used to improve the plant growth stimulation and biological control of pathogens in sustainable agricultural.

Keywords : celular communication; PGPB; biological control; signals molecules.

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