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Distribution of putative virulence genes and antimicrobial drug resistance in Vibrio harveyi

DRS at CSIR-National Institute of Oceanography

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Title Distribution of putative virulence genes and antimicrobial drug resistance in Vibrio harveyi
 
Creator Parvathi, A.
Mendez, D.
Anto, C.
 
Subject Vibrio harveyi
Antibiotic resistance
Genotyping
reversible toxin
 
Description The marine-estuarine bacterium Vibrio harveyi is an important pathogen of invertebrates, most significantly, the larvae of commercially important shrimp Penaeus monodon. In this study, we analyzed V. harveyi isolated from shrimp hatchery environments for understanding the distribution of putative virulence genes and antimicrobial drug resistance. The putative genes targeted for PCR detection included four reversible toxin (Rtx)/hemolysin genes, a gene encoding homologue of Vibrio cholerae zonula occludens toxin (Zot) and a hemolysin-coregulated protein gene (hcp) by polymerase chain reaction (PCR). Of the four putative reversible toxin genes, vhh-1 was detected in 31% of the isolates, vhh-2 in 46%, vhh-3 in 23% and vhh-4 was detected in 27% of the isolates. A zot-like sequence of bacteriophage f237 was present in 15%, while hcp sequence was detected in 48% of the isolates. The antimicrobial susceptibility test revealed resistance to several groups of antibiotics including Beta-lactams, cephalosporins, macrolides, quinolones, nitrofurantoin and tetracycline
 
Date 2011-07-29T07:26:43Z
2011-07-29T07:26:43Z
2011
 
Type Journal Article
 
Identifier Indian Journal of Microbiology, vol.51(3); 2011; 332-337
http://drs.nio.org/drs/handle/2264/3888
 
Language en
 
Rights An edited version of this paper was published by Springer. This paper is for R & D purpose and Copyright [2011] Association of Microbiologists of India.
 
Publisher Springer