Marine Biotechnology

, Volume 2, Issue 6, pp 533–544

A Molecular Biomarker System for Assessing the Health of Coral (Montastraea faveolata) During Heat Stress

Authors

  • Craig A.  Downs
    • Marine Biotechnology Program, U.S. National Oceanic & Atmospheric Administration, National Ocean Service, Center for Coastal Environmental Health and Biomolecular Research, Charleston, SC 29412, U.S.A.
  • Erich  Mueller
    • Center for Tropical Research, Mote Marine Laboratory, Summerland Key, FL 33042, U.S.A.
  • Susan  Phillips
    • Department of Biological Sciences, Brevard Community College, Palm Bay, FL 32909, U.S.A.
  • John E.  Fauth
    • Department of Biology, University of Charleston, Charleston, SC 29422, U.S.A.
  • Cheryl M.  Woodley
    • Marine Biotechnology Program, U.S. National Oceanic & Atmospheric Administration, National Ocean Service, Center for Coastal Environmental Health and Biomolecular Research, Charleston, SC 29412, U.S.A.

DOI: 10.1007/s101260000038

Cite this article as:
Downs, C., Mueller, E., Phillips, S. et al. Mar. Biotechnol. (2000) 2: 533. doi:10.1007/s101260000038

Abstract:

Using a novel molecular biomaker system (MBS), we assessed the physiological status of coral (Montastraea faveolata) challenged by heat stress by assaying specific cellular and molecular parameters. This technology is particularly relevant for corals because heat stress is thought to be an essential component of coral bleaching. This phenomenon is widely believed to be responsible for coral mortality worldwide, particularly during 1997–1998. Specific parameters of coral cellular physiology were assayed using the MBS that are indicative of a nonstressed or stressed condition. The MBS distinguished the separate and combined effects of heat and light on the 2 coral symbionts, a scleractinian coral and a dinoflagellate algae (zooxanthellae). This technology aids in the accurate diagnosis of coral condition because each parameter is physiologically well understood. Finally, the MBS technology is relatively inexpensive, easy to implement, and precise, and it can be quickly adapted to a high-throughout robotic system for mass sample analysis.

Key words: coral reefs, heat stress, molecular biomarkers.
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© 2000 Springer-Verlag New York Inc.