Insights of biosurfactant producing Serratia marcescens strain W2.3 isolated from diseased tilapia fish: A draft genome analysis

Xin-Yue Chan, Chien-Yi Chang, Kar Wai Hong, Kok Keng Tee, Wai-Fong Yin, Kok Gan Chan

    Research output: Contribution to journalArticle

    16 Citations (Scopus)

    Abstract

    Background: Serratia marcescens is an opportunistic bacterial pathogen with broad range of host ranging from vertebrates, invertebrates and plants. S. marcescens strain W2.3 was isolated from a diseased tilapia fish and it was suspected to be the causal agent for the fish disease as virulence genes were found within its genome. In this study, for the first time, the genome sequences of S. marcescens strain W2.3 were sequenced using the Illumina MiSeq platform.

    Result: Several virulent factors of S. marcescens such as serrawettin, a biosurfactant, has been reported to be regulated by N-acyl homoserine lactone (AHL)-based quorum sensing (QS). In our previous studies, an unusual AHL with long acyl side chain was detected from this isolate suggesting the possibility of novel virulence factors regulation. This evokes our interest in the genome of this bacterial strain and hereby we present the draft genome of S. marcescens W2.3, which carries the serrawettin production gene, swrA and the AHL-based QS transcriptional regulator gene, luxR which is an orphan luxR.

    Conclusion: With the availability of the whole genome sequences of S. marcescens W2.3, this will pave the way for the study of the QS-mediated genes expression in this bacterium.

    Original languageEnglish
    Article number29
    JournalGut Pathogens
    Volume5
    DOIs
    Publication statusPublished - 22 Oct 2013

    Keywords

    • Biosurfactant
    • N-acyl homoserine lactone
    • Next generation sequencing technology
    • Quorum sensing
    • Serratia marcescens
    • Serrawettin
    • swrA

    ASJC Scopus subject areas

    • Gastroenterology
    • Infectious Diseases
    • Microbiology
    • Parasitology
    • Virology

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