Bioactive compound that inhabit quorum sensing system in gram negative bacteria

Abstract

Bacteria communicate using chemical signaling molecules as words. They release, detect, and respond to the accumulation of these molecules, which are called autoinducers. Detection of autoinducers allows bacteria to distinguish between low and high cell population density, and to control gene expression in response to changes the cell number. This process is termed quorum sensing. Many bacterial behaviors are regulated by quorum sensing, including virulence factors on gram negative bacteria. Quorum sensing is a novel target for antimicrobial therapies. Many eukariots including plants, fungus, and animals produce molecules that can interfered bacteria communication, such as halogen furanon from alga Delisea pulchra, N- (heptylsulfanylacetyl)-L-homoserine-lactone from Allium sativum, and flustramine from bryozoan Flustra foliacea.