IDENTIFICATION OF NOVEL LONG CHAIN N-ACYLHOMOSERINE LACTONES OF CHAIN LENGTH C20 FROM THE MARINE PHOTOTROPHIC BACTERIUM RHODOVULUM SULFIDOPHILUM

摘要

Gram negative bacterial quorum sensing (QS) is mainly regulated by an extracellularly produced Nacylhomoserine lactone (AHL). AHL consists of a lactone ring and an acyl chain, which generally varies from C4 to C18 in length. The marine photosynthetic bacterium Rhodovulum sulfidophilum produces extracellular nucleic acids involved in its flocculation [1], and may be regulated through AHL signaling.