Quorum-sensing signals and quorum-sensing genes in Burkholderia vietnamiensis

被引:38
作者
Conway, BA [1 ]
Greenberg, EP [1 ]
机构
[1] Univ Iowa, Dept Microbiol, Iowa City, IA 52242 USA
关键词
D O I
10.1128/jb.184.4.1187-1191.2002
中图分类号
Q93 [微生物学];
学科分类号
071005 ; 100705 ;
摘要
Acyl-homoserine lactone (acyl-HSL) quorum sensing is common to many Proteobacteria including a clinical isolate of Burkholderia cepacia. The B. cepacia isolate produces low levels of octanoyl-HSL. We have examined an environmental isolate of Burkholderia vietnamiensis. This isolate produced several acyl-HSLs. The most abundant species was decanoyl-HSL. Decanoyl-HSL in B. vietnamiensis cultures reached concentrations in excess of 20 muM. We isolated a B. vietnamiensis DNA fragment containing a gene for the synthesis of decanoyl-HSL (bviI) and an open reading frame that codes for a putative signal receptor (bviR). A B. vietnamiensis bviI mutant did not produce detectable levels of decanoyl-HSL.
引用
收藏
页码:1187 / 1191
页数:5
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