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Appl Environ Microbiol. 1990 February; 56(2): 357-361
Copyright © 1990, American Society for Microbiology. All Rights Reserved.
1 Department of Microbiology, Louisiana State University, Baton Rouge, Louisiana 70803, and Department of Microbiology, Brigham Young University, Provo, Utah 846022
ABSTRACT
Larvae of the mayfly (Drunella grandis [Eaton]) from Diamond Fork Creek, Utah, were covered with a heavy growth of the sulfide-oxidizing bacterium Thiothrix. The bacterium did not seem to harm the mayfly, but the Thiothrix trichomes were parasitized by three morphologically distinct bacteria, two of which were cytoplasmic and one of which was probably periplasmic. At least two of the parasites destroyed the cytoplasmic contents of the Thiothrix sp., thus killing the host cell. Attempts to obtain the parasites in pure culture were unsuccessful.
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