Population ecology of Sulfolobus acidocaldarius |
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Authors: | Ben B. Bohlool Thomas D. Brock |
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Affiliation: | 1. Department of Bacteriology, University of Wisconsin, 53706, Madison, Wisconsin
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Abstract: | Ecology of Sulfolobus acidocaldarius was studied in situ by the use of the immunofluorescence and immunodiffusion techniques. The fluorescent antibodies (FA) prepared against four strains of Sulfolobus were highly reactive against their homologous antigens. Two of the FA's were strain specific and the other two exhibited reciprocal corssreactions against each other's antigens, but immunodiffusion patterns showed that the two strains were not identical. The growth of a serologically distinct isolate in a hot spring was measured by immunofluorescence staining of immersion slides. On glass immersion slides Sulfolobus grew and formed colonies with a mean-doubling time of approximately 36 h. Immunofluorescence was applied to study the geographical distribution of two serologically different strains and to establish population composition of individual springs. One strain was found in all sites studied, and most springs contained more than one serologic type. Immunodiffusion was capable of detecting specific Sulfolobus antigens in hot springs which contained a high population of FA-reactive cells. |
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