Quorum sensing signaling molecules and their inhibitors in legume-associated bacteria

NIEVAS, FIORELA; BOGINO, PABLO; GIORDANO, WALTER

Abiotic Stress and Legumes: Tolerance and Management

Elsevier Australia Publisher

Año: 2019;

Quorum sensing (QS) systems use N-acyl-homoserine lactones (AHLs) as signaling molecules, commonly found in Gram-negative bacteria that live in association with plants. The QS system allows bacteria to function as multicellular organisms, because the extracellular concentration of autoinducer increases with bacteria population growth after attaining a determinate number. Presently, QS mechanisms are considered a potential novel target for the study of bacteria-plant interactions. In this chapter, we review the QS mechanisms used by rhizobacteria and by legume-associated bacteria with special emphasis on the advances related to QS inhibitors produced by plants and microorganisms.