参与生物膜形成的Hyphomonas菌株VP-6荚膜的时空沉积。
Spatial and temporal deposition of hyphomonas strain VP-6 capsules involved in biofilm formation.
作者信息
Langille SE, Weiner RM
机构信息
Department of Microbiology, University of Maryland, College Park, Maryland.
出版信息
Appl Environ Microbiol. 1998 Aug;64(8):2906-13. doi: 10.1128/AEM.64.8.2906-2913.1998.
Abstract
Hyphomonas strain VP-6 is a prosthecate bacterium isolated from the Guayamas vent region and is a member of a genus of primary and common colonizers of marine surfaces. It adheres to solid substrata as a first step in biofilm formation. Fine-structure microscopy and the use of specific stains and lectins reveal that it synthesizes two different extracellular polymeric substances (EPS). One is a temporally synthesized, polar holdfast EPS, and the other is a capsular EPS that is present during the complete life cycle and surrounds the entire cell, including the prosthecum. The timing and location of Hyphomonas strain VP-6 EPS elaboration correlate with adhesion to surfaces, suggesting that the EPS serves not only as the biofilm matrix but also as a primary adhesin. The temporality and polarity of VP-6 EPS expression substantially differ from those properties of Hyphomonas strain MHS-3 EPS expression.
摘要
海单胞菌菌株VP - 6是一种从瓜伊马斯海 vent 区域分离出的有柄细菌，是海洋表面主要和常见定殖菌属的成员。它附着在固体基质上，作为生物膜形成的第一步。精细结构显微镜以及特定染色剂和凝集素的使用表明，它合成两种不同的细胞外聚合物（EPS）。一种是在特定时间合成的、极性的固着 EPS，另一种是在整个生命周期中都存在的、围绕整个细胞（包括柄）的荚膜 EPS。海单胞菌菌株VP - 6 EPS 合成的时间和位置与对表面的粘附相关，这表明 EPS 不仅作为生物膜基质，还作为主要的粘附素。VP - 6 EPS 表达的时间性和极性与海单胞菌菌株MHS - 3 EPS 表达的那些特性有很大不同。
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