Bethesda, MDMuch attention has been paid to the fate of wildlife living on and above the Gulf of Mexico's surface. Now, a new research study published in the June 2010 print issue of the FASEB Journal (http://www.fasebj.org) looks toward the seafloor to explain coral susceptibility to disease outbreaks when they encounter environmental stress and to set the stage for understanding exactly what type of undersea environment is necessary to promote coral health and growth after the oil spill cleanup. In addition, this research also opens doors for the development of new tools that can assess the health of corals, which is important when trying to establish manmade reefs or to save ones that already exist.
"We hope this study will highlight the need to maintain favorable environmental conditions on reefs to maximize the functioning of coral immune mechanisms and avert outbreaks of coral disease and bleaching," said Caroline Palmer, one of the researchers involved in the work who is from the Australian Research Council Centre of Excellence for Coral Reef Studies and School of Marine and Tropical Biology at James Cook University in Queensland, Australia. "Otherwise, declining environmental conditions associated with extractive activities, deteriorating water quality and a changing climate will threaten the long term persistence of corals and coral reefs, which support millions of lives worldwide through fisheries, tourism, and coastal protection amongst other functions."
Palmer and colleagues sampled several coral species from the Great Barrier Reef to determine whether a suite of cellular and biochemical mechanisms of immunity were active. Using histological techniques they documented the presence and area of melanin-containing granular cells and the activity of specific enzymes as measures of oxidative damage and repair. Then the scientists investigated the relationship between coral immunity and dise
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Federation of American Societies for Experimental Biology