Distribution of five vibrio virulence-related genes among Vibrio harveyi isolates

摘要

Vibrio are widely distributed in aquatic environments (Thompson et al.,2006) and are commonly associated with marine living species and include many important pathogens for farmed animals and humans who consume contaminated seafood or polluted drinking water.Pathogenic mechanisms are only clearly understood for V.cholerae and V.parahaemolyticus,but not for the majority of other vibrios (Faruque et al.,1998;Nishibuchi and Kaper,1995;Thompson et al.,2006).Many virulence genes have been elucidated,including the tdh gene (coding thermostable direct haemolysin) in V.parahemolyticus,ctxAB genes (coding the potent cholera toxin) in V.cholera and others (Faruque et al.,1998;Nishibuchi and Kaper,1995).