Publication: Urease production correlates with possession of the trh gene in vibrio parahaemolyticus strains isolated in thailand
Issued Date
1995-01-01
Resource Type
ISSN
15376613
00221899
00221899
Other identifier(s)
2-s2.0-0028784426
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Mahidol University
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SCOPUS
Bibliographic Citation
Journal of Infectious Diseases. Vol.172, No.5 (1995), 1405-1408
Suggested Citation
Orasa Suthienkul, Masanori Ishibashi, Tetsuya Iida, Nujjaree Nettip, Suvanee Supavej, Boonchuay Eampokalap, Masanao Makino, Takeshi Honda Urease production correlates with possession of the trh gene in vibrio parahaemolyticus strains isolated in thailand. Journal of Infectious Diseases. Vol.172, No.5 (1995), 1405-1408. doi:10.1093/infdis/172.5.1405 Retrieved from: https://repository.li.mahidol.ac.th/handle/20.500.14594/17328
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Title
Urease production correlates with possession of the trh gene in vibrio parahaemolyticus strains isolated in thailand
Abstract
A total of 489 Vibrio parahaemolyticus isolates from patients in Thailand with diarrhea was examined for the presence of thermostable direct hemolysin (TDH) and TDH-related hemolysin genes (tdh and trh, respectively), their serovars, TDH production, and urease activity. Of the strains, 81% were positive only for the tdh gene, 6% for bothtrh and tdh genes, and 2% for the trh gene only. Thirty-seven (8%) of the 489 isolates were positive for urease production. Of special interest, all urease-positive strains possessed the trh gene, and conversely, urease-negative strains lacked the gene, indicating that urease production by V. parahaemolyticus strains strongly correlates with the possession of the trh gene. Thus, the urease-positive phenotype of V. parahaemolyticus can be considered an indication of virulent (trh-possessing) V. parahaemolyticus strains in clinical diagnosis. © 1995 The University of Chicago Press.