Molecular characterisation of rough strains of Vibrio cholerae isolated from diarrhoeal cases in India and their comparison to smooth strains.

Abstract:

:Sixteen of the 18 Vibrio cholerae rough strains isolated from hospitalised diarrhoea patients were found to contain O1 serotype-specific (wbe) genes and all currently known virulence genes. Expression of the regulatory element ToxR was evident in these strains. Cholera toxin production ability of the rough strains was found to be higher (c. three- to five-fold) as compared to the smooth counterparts and this was transcriptionally regulated. Strains exhibiting the rough phenotype were more amenable to the uptake of CTXphi, which led us to consider that the rough phenotype could play a role in the generation of genetic diversity among V. cholerae strains.

journal_name

FEMS Microbiol Lett

authors

De K,Ramamurthy T,Faruque SM,Yamasaki S,Takeda Y,Nair GB,Nandy RK

doi

10.1016/S0378-1097(04)00013-8

keywords:

subject

Has Abstract

pub_date

2004-03-12 00:00:00

pages

23-30

issue

1

eissn

0378-1097

issn

1574-6968

pii

S0378109704000138

journal_volume

232

pub_type

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