RRC ID 79399
Author Zhang Y, Zhang T, Qiu Y, Zhang M, Lu X, Yang W, Hu L, Zhou D, Gao B, Lu R.
Title Transcriptomic Profiles of Vibrio parahaemolyticus During Biofilm Formation.
Journal Curr Microbiol
Abstract Vibrio parahaemolyticus, the leading cause of bacterial seafood-associated gastroenteritis, can form biofilms. In this work, the gene expression profiles of V. parahaemolyticus during biofilm formation were investigated by transcriptome sequencing. A total of 183, 503, and 729 genes were significantly differentially expressed in the bacterial cells at 12, 24 and 48 h, respectively, compared with that at 6 h. Of these, 92 genes were consistently activated or repressed from 6 to 48 h. The genes involved in polar flagellum, chemotaxis, mannose-sensitive haemagglutinin type IV pili, capsular polysaccharide, type III secretion system 1 (T3SS1), T3SS2, thermostable direct hemolysin (TDH), type VI secretion system 1 (T6SS1) and T6SS2 were downregulated, whereas those involved in V. parahaemolyticus pathogenicity island (Vp-PAI) (except for T3SS2 and TDH) and membrane fusion proteins were upregulated. Three extracellular protease genes (vppC, prtA and VPA1071) and a dozen of outer membrane protein encoding genes were also significantly differentially expressed during biofilm formation. In addition, five putative c-di-GMP metabolism-associated genes were significantly differentially expressed, which may account for the drop in c-di-GMP levels after the beginning of biofilm formation. Moreover, many putative regulatory genes were significantly differentially expressed, and more than 1000 putative small non-coding RNAs were detected, suggesting that biofilm formation was tightly regulated by complex regulatory networks. The data provided a global view of gene expression profiles during biofilm formation, showing that the significantly differentially expressed genes were involved in multiple cellular pathways, including virulence, biofilm formation, metabolism, and regulation.
Volume 80(12)
Pages 371
Published 2023-10-14
DOI 10.1007/s00284-023-03425-7
PII 10.1007/s00284-023-03425-7
PMID 37838636
MeSH Bacterial Proteins / genetics Bacterial Proteins / metabolism Biofilms Gene Expression Regulation, Bacterial Humans Transcriptome Vibrio Infections* / microbiology Vibrio parahaemolyticus* / genetics Virulence / genetics Virulence Factors / genetics
Pathogenic bacteria