A Study on Virulence and Signaling Mechanism Related to Biofilm Formation and Exopolysaccharide Expression in Certain Vibrio cholerae Environmental Isolates

Chandradipa Ghosh
Chandradipa Ghosh
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Dr. Smritikana Biswas
Dr. Smritikana Biswas
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Swati Sen
Swati Sen
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Parimal Dua
Parimal Dua
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Prithwiraj Mukherjee
Prithwiraj Mukherjee
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Sougata Bhunia
Sougata Bhunia
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Vidyasagar University Vidyasagar University

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A Study on Virulence and Signaling Mechanism Related to Biofilm Formation and Exopolysaccharide Expression in Certain Vibrio cholerae Environmental Isolates

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Abstract

Vibrio cholerae, causative agent of profuse watery diarrhea forms biofilm structure which is adaptive advantage for the Vibrio cholerae. This study was carried out to characterize certain Vibrio cholerae environmental strains collected from the water reservoirs surrounding Midnapore town, West Bengal, India in respect of serogroups, antibiotic susceptibility, protease activity, haemolytic activity, pathogenecity and determination of biofilm forming ability and also signaling system involved in the regulation of biofilm. Multiplex PCR assay revealed that all were from non O1/non O139 serogroups and ctxA, tcpA negative. All of them were sensitive to streptomycin, tetracycline, nalidixic acid but resistant to ampicillin, norfloxacin and chloramphenical and 70% were polymyxin B resistant. Beside this these Vibrio cholerae isolates were strongly hemolytic, moderate to high biofilm forming. In this study we found that these strains did not follow the biofilm controlling previously reported flagella-mediated, hapRmediated as well as quorum sensing autoinducer(s)-mediated signal transduction pathway.

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No external funding was declared for this work.

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The authors declare no conflict of interest.

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How to Cite This Article

Chandradipa Ghosh. 1970. \u201cA Study on Virulence and Signaling Mechanism Related to Biofilm Formation and Exopolysaccharide Expression in Certain Vibrio cholerae Environmental Isolates\u201d. Global Journal of Medical Research - A: Neurology & Nervous System N/A (GJMR Volume 12 Issue A3).

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Journal Specifications

Crossref Journal DOI 10.17406/gjmra

Print ISSN 0975-5888

e-ISSN 2249-4618

Keywords
antibiogrambiofilmpathogenecityserogroupingVibrio cholerae environmental isolates
  • Submission ReceivedJanuary 29, 2012
  • Peer Review Double Blind
    Handling Editor
  • Accepted February 28, 2012
  • Published March 14, 2012
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A Study on Virulence and Signaling Mechanism Related to Biofilm Formation and Exopolysaccharide Expression in Certain Vibrio cholerae Environmental Isolates

Dr. Smritikana Biswas
Dr. Smritikana Biswas
Swati Sen
Swati Sen
Parimal Dua
Parimal Dua
Prithwiraj Mukherjee
Prithwiraj Mukherjee
Sougata Bhunia
Sougata Bhunia
Chandradipa Ghosh
Chandradipa Ghosh <p>Vidyasagar University</p>
  • Submission ReceivedJanuary 29, 2012
  • Peer Review Double Blind
    Handling Editor
  • Accepted February 28, 2012
  • Published March 14, 2012

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