Microbial Ecology

, Volume 2, Issue 3, pp 227–233 | Cite as

Bacterial attack of corals in polluted seawater

  • Ralph Mitchell
  • Ilan Chet


Coral heads of the genusPlatigyra exposed to low concentrations of crude oil, copper sulfate, potassium phosphate, or dextrose were killed in periods of 5 to 10 days in aquarium studies. The chemicals stimulated the production of large quantities of mucus by the corals. In aquaria treated with antibiotics to prevent microbial growth,Platigyra survived the presence of these chemicals in the water, indicating a role of the microflora in the death of the corals. Evidence was obtained implicating predatory bacteria,Desulfovibrio andBeggiatoa, in the destruction of the stressed coral colonies.


Copper Phosphate Sulfate Potassium Nature Conservation 
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Copyright information

© Springer-Verlag New York Inc. 1975

Authors and Affiliations

  • Ralph Mitchell
    • 1
  • Ilan Chet
    • 1
  1. 1.Laboratory of Applied Microbiology, Division of Engineering and Applied PhysicsHarvard UniversityCambridge

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