A virus in a fungus in a plant: This three-way symbiosis was discovered in a tropical panic grass Dichanthelium lanuginosum. Marilyn J. Roossnick of the Samuel Roberts Noble Foundation in Ardmore, Okla., and collaborators were examining an endophytic fungus, Curvularia protuberata, which inhabits the roots of the grass, allowing it to grow in the high-temperature soils of Yellowstone National Park. They isolated a dsRNA virus in the fungus necessary to maintain the high-temperature tolerance. 1 Joe Heitman, of Duke University Medical Center calls the paper "fascinating."
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An ecologic m￩nage ￠ trois
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