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. 1996 Mar;27(1):126-31.

Hemolysins and plasmid profiles of Vibrio parahaemolyticus

J Vadivelu  1 , S D Puthucheary, A Mitin, C Y Wan, B van Melle, J A Puthucheary
Affiliations
  • PMID: 9031414

Hemolysins and plasmid profiles of Vibrio parahaemolyticus

J Vadivelu et al. Southeast Asian J Trop Med Public Health. 1996 Mar.

Abstract

Forty clinical isolates of Vibrio parahaemolyticus were studied for the production of the thermostable direct hemolysin (TDH), and the TDH-related hemolysin (TRH) including the respective encoding genes, tdh and trh. The presence of TDH and its encoding genes were found amongst 95% of the strains, whereas the TRH was absent amongst these isolates. Thirty-two isolates were found to be plasmid-free, whereas eight isolates possessed plasmids with sizes ranging from 2.4 > or = 23 kb. Using a DNA probe coding for the homologous region of the tdh and trh, it was found that the tdh genes were present on the chromosomal DNA.

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