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      The Vibrio shiloi/Oculina patagonica model system of coral bleaching.

      1 ,
      Annual review of microbiology
      Annual Reviews

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          Abstract

          The scleractinian coral Oculina patagonica undergoes bleaching (loss of its endosymbiotic zooxanthellae) every summer in the eastern Mediterranean Sea when seawater temperatures rise. The causative agent of the disease is Vibrio shiloi. The pathogen adheres to a beta-galactoside-containing receptor in the coral mucus, penetrates into epithelial cells, differentiates into a viable-but-not-culturable form, multiplies, and produces a proline-rich peptide toxin that inhibits photosynthesis of the zooxanthellae in the presence of ammonia. Several of the virulence factors, such as adhesin, toxin, and superoxide dismutase, are produced only at the elevated summer seawater temperatures. The fireworm Hermodice carunculata is a winter reservoir and spring/summer vector for V. shiloi. The generality of the bacterial hypothesis of coral bleaching is discussed.

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          Author and article information

          Journal
          Annu Rev Microbiol
          Annual review of microbiology
          Annual Reviews
          0066-4227
          0066-4227
          2004
          : 58
          Affiliations
          [1 ] Department of Molecular Microbiology and Biotechnology, Tel Aviv University, Ramat Aviv, Israel 69978. eros@post.tau.ac.il
          Article
          10.1146/annurev.micro.58.030603.123610
          15487933
          31e66b11-a268-43ff-9908-5814899180a1
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