CHEMOTAXIS TO OLIGOPEPTIDES BY PSEUDOMONAS-AERUGINOSA

被引:17
作者
KELLYWINTENBERG, K [1 ]
MONTIE, TC [1 ]
机构
[1] UNIV TENNESSEE,DEPT MICROBIOL,KNOXVILLE,TN 37996
关键词
D O I
10.1128/AEM.60.1.363-367.1994
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
A number of peptides were evaluated as chemoattractants for Pseudomonas aeruginosa. Several strains recognized tri-, tetra-, penta-, and hexapeptides in a capillary tube assay. Tripeptides altered at the carboxyl terminus were good attractants, whereas tripeptides altered at the amino terminus did not serve as chemoattractants. Methionine-containing peptides were relatively poor attractants. Arginine-containing peptides gave the best responses. Reduced responses to larger peptides suggest that porin penetration is required. No extracellular peptidase activity was detected. We conclude that oligopeptides are good attractants and that specificity for chemotactic recognition of oligopeptides exists.
引用
收藏
页码:363 / 367
页数:5
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