期刊
GENE
卷 859, 期 -, 页码 -出版社
ELSEVIER
DOI: 10.1016/j.gene.2023.147187
关键词
Vibrio parahaemolyticus; Two-component system; Hemolysin; Strain variability; The expression pattern
This study investigated the expression patterns of two-component system (TCS) in Vibrio parahaemolyticus with different genotypes and explored the differences in TCS between strains. The results showed similarities in the TCS expression pattern between certain genotypes, while another genotype had the least similar pattern. Analysis of biological information revealed that different TCS regulations may influence strains' growth, antibiotic resistance, biofilm, and virulence. The different TCS regulatory abilities of strains might be one of the reasons for diverse biological characteristics and different environmental adaptations.
Vibrio parahaemolyticus is a foodborne pathogen that threatens global food security and human health. The two -component system (TCS) is a primary method for bacteria self-regulate and adapt to the environment. Previous studies have shown that V. parahaemolyticus has four hemolytic genotypes with diverse biological phenotypes and environmental adaptability, but the mechanism is unclear. In this study, we investigated TCS expression patterns in V. parahaemolyticus with different genotypes for the first time and explored the differences in TCS between strains. The results showed similarities in the TCS expression pattern between VPC17 (tdh+/trh-) and VPC44 (tdh-/trh-), while VPC85(tdh-/trh+) had the least similar TCS expression pattern to the other three strains. Analysis of biological information revealed that different regulations of C4 dicarboxylate transport, tetrathionate uptake, antibiotic resistance, and flagellar synthesis involved in the TCS might influence strains' growth, antibiotic resistance, biofilm, and virulence. The different TCS regulatory abilities of strains might be one of the reasons for diverse biological characteristics and different environmental adaptations. This work provides a theoretical basis and a new research direction for the strain variability of V. parahaemolyticus.
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