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Scientists find possible cure for global amphibian-killing disease mongabay.com May 23, 2007
Presenting Wednesday at the General Meeting of the American Society for Microbiology in Toronto, Professor Reid N. Harris at James Madison University reported that Pedobacter cryoconitis, a bacteria found naturally on the skin of red-backed salamanders, wards off the deadly chytridiomycosis fungus, an infection cited as a contributing factor to the global decline in amphibians observed over the past three decades. "The exciting aspect is that we identified at least one bacterium from the skin that in both the dish and on the salamander aids the healing process one species of bacteria which you could tentatively view as a probiotic," said Harris, who came to the realization while researching another fungus that attacks amphibian eggs and embryos. He found research by other scientists showed that bacteria on some amphibians produced antifungal compounds.
Working with Timothy Y. James of Duke University, postdoctoral assistant Antje Lauer, and his students, Harris showed that the skin bacteria protects salamandars from the killed fungus, though so far, the research has only been conducted in a lab environment. "There will have to be careful testing," he said. "Just because on the Petri plate you find a species of bacteria that is anti-chytrid doesn't mean it's going to be anti-chytrid on the amphibian. So we're going to have to do some tests to make sure which ones are actually most affective on the organism. But we did find one." Harris hopes that the work could eventually lead to a vaccination campaign to save endangred amphibians from extinction.
Due to the crisis, last year 50 of the world's leading amphibian researchers called for urgent conservation action to save amphibians from extinction. The group, called the Amphibian Survival Alliance, is seeking to raise $400 million to fund captive breeding and conservation programs. Comments? News options Liquid error: Template not found languages/english/includes/x/_44.liquid
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