Salt stress proteins induced in Listeria monocytogenes

被引:126
作者
Duché, O
Trémoulet, F
Glaser, P
Labadie, J [1 ]
机构
[1] INRA, Rech Viande Stn, F-63122 St Genes Champanelle, France
[2] Inst Pasteur, Lab Genom Microorgan Pathogenes, F-75724 Paris 15, France
关键词
D O I
10.1128/AEM.68.4.1491-1498.2002
中图分类号
Q81 [生物工程学(生物技术)]; Q93 [微生物学];
学科分类号
071005 ; 0836 ; 090102 ; 100705 ;
摘要
The ability of Listeria monocytogenes to tolerate salt stress is of particular importance, as this pathogen is often exposed to such environments during both food processing and food preservation. In order to understand the survival mechanisms of L. monocytogenes, an initial approach using two-dimensional polyacrylamide gel electrophoresis was performed to analyze the pattern of protein synthesis in response to salt stress. Of 400 to 500 visible proteins, the synthesis of 40 proteins (P < 0.05) was repressed or induced at a higher rate during salt stress. Some of the proteins were identified on the basis of mass spectrometry or N-terminal sequence analysis and database searching. Twelve proteins showing high induction after salt stress were similar to general stress proteins (Ctc and DnaK), transporters (GbuA and mannose-specific phosphotransferase system enzyme HAB), and general metabolism proteins (alanine dehydrogenase, CcpA, CysK, EF-Tu, Gap, GuaB, PdhA, and PdhD).
引用
收藏
页码:1491 / 1498
页数:8
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