Abstract:
:N-Acylhomoserine lactones (AHLs) are used as quorum-sensing signaling molecules by many Gram-negative bacteria. Here, 413 bacterial strains were obtained from the roots of potato plants and screened for AHL-degrading bacteria using Chromobacterium violaceum reporter strains. Sixty one isolates degraded N-hexanoyl-L-homoserine lactone (C6-HSL) within 24 h. Based on their 16S rRNA gene sequences, most of these isolates were assigned to the genus Chryseobacterium and divided into eight groups. Most of the strains degraded N-decanoyl-L-homoserine lactone (C10-HSL) and were active against 3-oxo-substituted AHLs. Groups V and VI were more effective at inactivating AHLs. One group V strain, StRB402, showed putative AHL-lactonase activity. This is the first report of AHL-degrading Chryseobacterium strains.
journal_name
Microbes Environjournal_title
Microbes and environmentsauthors
Rashid R,Morohoshi T,Someya N,Ikeda Tdoi
10.1264/jsme2.me10207subject
Has Abstractpub_date
2011-01-01 00:00:00pages
144-8issue
2eissn
1342-6311issn
1347-4405pii
JST.JSTAGE/jsme2/ME10207journal_volume
26pub_type
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