The Relationship between Biofilm Phenotypes and Biofilm-Associated Genes in Food-Related Listeria monocytogenes Strains

被引:1
|
作者
Burdova, Alexandra [1 ]
Veghova, Adriana [2 ]
Minarovicova, Jana [2 ]
Drahovska, Hana [1 ]
Kaclikova, Eva [2 ]
机构
[1] Comenius Univ, Fac Nat Sci, Ilkovicova 6, Bratislava 84215, Slovakia
[2] Natl Agr & Food Ctr, Food Res Inst, Priemyselna 4, Bratislava 82475, Slovakia
关键词
Listeria monocytogenes; biofilm formation; whole-genome sequencing; biofilm-associated genes; VIRULENCE; EXPRESSION; DIVERSITY; EVOLUTION; ADHERENCE; LINEAGES; ECOLOGY; GROWTH;
D O I
10.3390/microorganisms12071297
中图分类号
Q93 [微生物学];
学科分类号
071005 ; 100705 ;
摘要
Listeria monocytogenes is an important pathogen responsible for listeriosis, a serious foodborne illness associated with high mortality rates. Therefore, L. monocytogenes is considered a challenge for the food industry due to the ability of some strains to persist in food-associated environments. Biofilm production is presumed to contribute to increased L. monocytogenes resistance and persistence. The aims of this study were to (1) assess the biofilm formation of L. monocytogenes isolates from a meat processing facility and sheep farm previously characterized and subjected to whole-genome sequencing and (2) perform a comparative genomic analysis to compare the biofilm formation and the presence of a known set of biofilm-associated genes and related resistance or persistence markers. Among the 37 L. monocytogenes isolates of 15 sequence types and four serogroups involved in this study, 14%, 62%, and 24% resulted in the formation of weak, moderate, and strong biofilm, respectively. Increased biofilm-forming ability was associated with the presence of the stress survival islet 1 (SSI-1), inlL, and the truncated inlA genes. Combining the phenotypic and genotypic data may contribute to understanding the relationships between biofilm-associated genes and L. monocytogenes biofilm-forming ability, enabling improvement in the control of this foodborne pathogen.
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页数:12
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