Abstract:
:Vibrio sp. are autochthonous to marine and estuarine waters. Several species of Vibrio are pathogens. It is of utmost importance to detect and discriminate the Vibrio sp. that are often involved in food and water borne infections. Since 16S rRNA based identification has limited utility in differentiating the closely related pathogenic species from non pathogenic species, we have evaluated the discriminatory power of groEL PCR-RFLP for identification of closely related Vibrio sp. Accordingly, in the current study, the efficiency of groEL PCR- RFLP for detection and accurate differentiation of known pathogens among Vibrio sp. such as V. cholerae, V. parahaemolyticus, V. vulnificus, V. mimicus, V. fluvialis, V. alginolyticus, V. anguillarum was evaluated. PCR amplified groEL gene fragment of each Vibrio sp. was digested separately using 5 restriction enzymes viz. Hha1, Rsa1, Alu1, Dde1 and Mbo1. The accuracy of the method was further validated by insilico restriction analysis of multiple strains of each species using NEBcutter. The method proved to be efficient for detection and differentiation of Vibrio species under study. Phylogenetic analysis also revealed groEL gene to be a better phylogenetic marker for Vibrio compared to 16S rRNA. Hence, the method can be employed for accurate detection of Vibrio sp. including the closely related species.
journal_name
Microb Pathogjournal_title
Microbial pathogenesisauthors
Silvester R,Alexander D,Antony AC,Hatha Mdoi
10.1016/j.micpath.2017.02.029subject
Has Abstractpub_date
2017-04-01 00:00:00pages
196-200eissn
0882-4010issn
1096-1208pii
S0882-4010(16)30859-2journal_volume
105pub_type
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