Cellular morphology of rough forms of Listeria monocytogenes isolated from clinical and food samples

被引：3
|
作者：
Rowan, N.J. [1 ,2 ]
Anderson, J.G. [1 ]
Candlish, A.A.G. [1 ]
机构：
[1] Department of Bioscience and Biotechnology, University of Strathclyde, Glasgow, United Kingdom
[2] Department of Bioscience and Biotechnology, University of Strathclyde, Royal College Bldng., 204 George St., Glasgow G1 1XW, United Kingdom
来源：
| 2000年 / Blackwell Publishing Ltd.卷 / 31期
关键词：
Cell morphology - Cellular morphology - Clinical samples - Condition - Food samples - Heat stress - L.monocytogenes - Listeria monocytogenes - Long chains - Rougher cells;
D O I：
10.1046/j.1472-765X.2000.00821.x
中图分类号：
学科分类号：
摘要：
Transmission electron microscopy (TEM) studies revealed that rough cell-forms of L. monocytogenes (designated FR variants), isolated from clinical and food samples (and under conditions of sublethal heat stress), consist of either single or paired long-filaments. These FR variants markedly contrast in cell morphology from other previously described avirulent rough-mutants of L. monocytogenes that form long chains consisting of multiple cells of similar size (designated MCR variants). The identity of these Listeria isolates was determined using a commercially available, anti-Listeria polyclonal KPL antibody and by the API Listeria biochemical gallery. This study shows that filamentous rough-forms of L. monocytogenes may occur in clinical and food samples that are of undetermined pathogenicity.
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