Nlp enhances biofilm formation by Yersinia pestis biovar microtus. (August 2022)

• Record Type: Journal Article
• Authors: Liu, Lei; He, Yingyu; Yang, Huiying; Liu, Wanbing; Zheng, Shangen; Qi, Yong; Zhou, Dongsheng; Zhang, Yiquan; Yin, Zhe
• Is Part Of: Microbial pathogenesis. Volume 169(2022)
• Publication Date: 2022-08
• Subjects: Yersinia pestis -- Nlp -- Biofilm -- Regulation; Pathogenic microorganisms -- Periodicals; Pathology, Molecular -- Periodicals; Communicable Diseases -- microbiology -- Periodicals; Communicable Diseases -- parasitology -- Periodicals; Micro-organismes pathogènes -- Périodiques; Pathologie moléculaire -- Périodiques; Electronic journals; 616.9041
• DOI: 10.1016/j.micpath.2022.105659
• Languages: English
• ISSNs: 0882-4010

Abstract

Abstract: Biofilms formed by Yersinia pestis are able to attach to and block flea's proventriculus, which stimulates the transmission of this pathogen from fleas to mammals. In this study, we found that Nlp (YP1143) enhanced biofilm formation by Y. pestis and had regulatory effects on biofilm-associated genes at the transcriptional level. Phenotypic assays, including colony morphology assay, crystal violet staining, and Caenorhabditis elegans biofilm assay, disclosed that Nlp strongly promoted biofilm formation by Y. pestis . Further gene regulation assays showed that Nlp stimulated the expression of hmsHFRS, hmsCDE and hmsB, while had no regulatory effect on the expression of hmsT and hmsP at the transcriptional level. These findings promoted us to gain more understanding of the complex regulatory circuits controlling biofilm formation by Y. pestis . Highlights: Nlp strongly promoted biofilm formation by Yersinia pestis biovar Microtus. Nlp activated the expression of hmsHFRS, hmsCDE and hmsB at the transcriptional level. Nlp had no regulatory effect on the expression of hmsT and hmsP.