Thesis - Open Access
Master of Science (MS)
Biever, working in this laboratory, isolated numerous diphtheroidal organisms from cattle and swine sources. These anaerobic diptheroids were morphologically similar to organisms in the genera Corynebacterium and Actinomyces. King and Meyer found that isolates of anaerobic diptheroids from human sources were more closely related to the Corynebacterium based upon metabolic and serologic differentiation. Their work consisted of separating A. bovis from several isolates of anaerobic diptheroids on the basis of the catalase test, litmus milk reactions, and the fermentation of xylose, salicin, and raffinose. However, Grasser reported that the fermentation reactions are variable and cannot be used as definite criteria for positive identification. The catalase test, which in the past was considered a specific test of differentiating Actinomyces spp. From anaerobic diptheroids and Corynebacterium spp., is no longer as useful because some of the more recently described Actinomyces spp. are catalase positive.
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Number of Pages
South Dakota State University
Scheetz, Everett E., "Cell-wall Analyses of Diphtheroids Isolated from Cattle and Swine" (1969). Electronic Theses and Dissertations. 3598.