期刊
FEMS MICROBIOLOGY LETTERS
卷 363, 期 2, 页码 -出版社
OXFORD UNIV PRESS
DOI: 10.1093/femsle/fnv229
关键词
Listeria; biofilm; carbohydrate structure; teichoic acid; glycosyltransferase; sequencing
类别
资金
- Region Nord-Pas-de-Calais (France)
The aim of this study was to characterize the Listeria monocytogenes biofilm and particularly the nature of the carbohydrates in the biofilm extracellular matrix and culture supernatant versus to cell wall carbohydrates. Listeria monocytogenes serotype 1/2a and 4b strains were able to form complex biofilms embedded in an extracellular matrix. The soluble carbohydrates from biofilm extracellular matrix and culture supernatant were identified as teichoic acids, structurally identical to cell wall teichoic acids. In addition, the DSS 1130 BFA2 strain had a serotype 1/2a teichoic acid lacking N-acetyl glucosamine glycosylation due to a mutation in the lmo2550 gene. Consequently, we hypothesized that the extracellular teichoic acids in L. monocytogenes biofilms have the same origin as cell wall teichoic acid.
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