Detection of tdh and trh genes in a urea-hydrolysing environmental isolate of Vibrio parahaemolyticus from the Andamans.
Co-existence of trh gene and urea-hydrolysing property in one of 44 marine water isolates of Vibrio parahaemolyticus correlates strongly with both genotypic and phenotypic characteristics of the bacterium. Thus, urease-producing phenotype can be considered a marker of virulence for the production of thermostable direct haemolysin-related haemolysin (TRH) (i.e. possession of trh gene). The same isolate also possessed the tdh gene. An environmental isolate possessing all the characteristics of a pathogenic V. parahaemolyticus in this marine environment suggest that there is a likelihood of the occurrence of clinical cases of gastroenteritis caused by V. parahaemolyticus in the Andamans.
Ghosh
A R
AR
Regional Medical Research Centre, ICMR, Andaman and Nicobar Islands, India.
Sehgal
S C
SC
D001426:Bacterial Proteins; D001427:Bacterial Toxins; D005798:Genes, Bacterial; D006460:Hemolysin Proteins / Q000235:genetics*; D006801:Humans; D006868:Hydrolysis; D007194:India; D014508:Urea / Q000378:metabolism*; D014736:Vibrio parahaemolyticus / Q000235:genetics* / Q000302:isolation & purification
D001426:Bacterial Proteins; D001427:Bacterial Toxins; D006460:Hemolysin Proteins; C088609:thermostable direct hemolysin-related hemolysin protein, Vibrio parahaemolyticus; C068489:thermostable direct hemolysin; D014508:Urea