Open AccessN ‐Acylhomoserine lactone regulates violacein production in Chromobacterium violaceum type strain ATCC 12472
Author(s) -
Morohoshi Tomohiro,
Kato Masashi,
Fukamachi Katsumasa,
Kato Norihiro,
Ikeda Tsukasa
Publication year - 2008
Publication title -
fems microbiology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.899
H-Index - 151
eISSN - 1574-6968
pISSN - 0378-1097
DOI - 10.1111/j.1574-6968.2007.01016.x
Subject(s) - chromobacterium violaceum , quorum sensing , homoserine , bacteria , microbiology and biotechnology , strain (injury) , lactone , biology , chemistry , biochemistry , biofilm , genetics , anatomy
In tests, Chromobacterium violaceum ATCC 12472 produced several N ‐acyl‐ l ‐homoserine lactones (AHLs). Of these, N ‐(3‐hydroxydecanoyl)‐ l ‐homoserine lactone was dominant, and controlled violacein production by quorum sensing. Strain VIR07, an AHL‐deficient mutant, did not produce violacein. Violacein production in VIR07 was induced by adding long‐chain AHLs (C10–C16), but was inhibited by adding short‐chain AHLs (C4–C8). Strain VIR07 showed the response of violacein production when AHLs diffused from a variety of AHL‐producing bacteria on agar plates, and thus might be a useful biosensor for recognizing exogenous AHLs.