Mahieddine Feriel C, Mathieu-Denoncourt Annabelle, Duperthuy Marylise
Département de Microbiologie, Infectiologie et Immunologie, Faculté de Médecine, Université de Montréal, Montréal, QC H3T 1J4, Canada.
Centre d'Innovation Biomédicale, Faculté de Médecine, Université de Montréal, Montréal, QC H3T 1J4, Canada.
Pathogens. 2025 May 23;14(6):521. doi: 10.3390/pathogens14060521.
Climate change and ocean warming have a huge impact on microbial communities, leading to an increased prevalence of infections in northern America. is an inhabitant of aquatic environments and is associated with fishes and shellfishes, particularly with oysters. It causes gastrointestinal infection through consumption of contaminated seafood, as well as wound infections or septicemia. Temperature is known to affect virulence and persistence factors in . In this study, twenty clinical strains isolated form sick patients in Quebec, Canada, were characterized for persistence and virulence factor production at different temperatures to assess the impact of a switch from sea water to the human body on them. Their capacity to produce biofilm, hemolysins, and membrane vesicles as well as their motility and antibiotic resistance at 20 °C and 37 °C were assessed. Our results revealed that while temperature had little effect on vesicle production, it significantly influenced their growth, antimicrobial resistance, biofilm formation, and motility. Additionally, all strains produced hemolysins at 37 °C but not under environmental conditions.
气候变化和海洋变暖对微生物群落有巨大影响，导致北美地区感染患病率上升。[具体微生物名称未给出]是水生环境的栖息者，与鱼类和贝类有关，特别是与牡蛎有关。它通过食用受污染的海鲜导致胃肠道感染，以及伤口感染或败血症。已知温度会影响[具体微生物名称未给出]的毒力和持久性因素。在本研究中，对从加拿大魁北克患病患者中分离出的20株临床菌株在不同温度下的持久性和毒力因子产生情况进行了表征，以评估从海水环境转变到人体环境对它们的影响。评估了它们在20℃和37℃下产生生物膜、溶血素和膜泡的能力以及它们的运动性和抗生素抗性。我们的结果表明，虽然温度对膜泡产生影响不大，但它显著影响它们的生长、抗菌抗性、生物膜形成和运动性。此外，所有[具体微生物名称未给出]菌株在37℃时产生溶血素，但在环境条件下不产生。
