Abstract
Organisms having a complex life cycle similar to the animal pathogen Dermatophilus congolensis have been isolated from soils of the United States. The soil isolates grow readily on agar media producing a black, friable, or sooty colony; in broth, the isolates produce a thick sediment with a clear supernatant fluid and occasionally a black surface pellicle. The generic taxon Geodermatophilus is proposed for these soil isolates. Geodermatophilus differs morphologically from Dermatophilus in thallus shape, ensheathment, and branching, and physiologically in respect to blood hemolysis, casein hydrolysis, carbohydrate utilization, acid production, and media requirements. The type species proposed is G. obscurus. Three subspecies are recognized.
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- GORDON M. A., EDWARDS M. R. MICROMORPHOLOGY OF DERMATOPHILUS CONGOLENSIS. J Bacteriol. 1963 Nov;86:1101–1115. doi: 10.1128/jb.86.5.1101-1115.1963. [DOI] [PMC free article] [PubMed] [Google Scholar]
- GORDON M. A. THE GENUS DERMATOPHILUS. J Bacteriol. 1964 Aug;88:509–522. doi: 10.1128/jb.88.2.509-522.1964. [DOI] [PMC free article] [PubMed] [Google Scholar]
- GORDON R. E., MIHM J. M. A comparative study of some strains received as nocardiae. J Bacteriol. 1957 Jan;73(1):15–27. doi: 10.1128/jb.73.1.15-27.1957. [DOI] [PMC free article] [PubMed] [Google Scholar]
- GORDON R. E., SMITH M. M. Proposed group of characters for the separation of Streptomyces and Nocardia. J Bacteriol. 1955 Feb;69(2):147–150. doi: 10.1128/jb.69.2.147-150.1955. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Hart C. B., Tyszkiewicz K., Rogers B. A., Kane G. J. Mycotic dermatitis in sheep. II. Dermatophilus congolensis and its reactions to compounds in vitro. Vet Rec. 1967 Dec 9;81(24):623–631. doi: 10.1136/vr.81.24.623. [DOI] [PubMed] [Google Scholar]
- ROBERT D. S. The life cycle of Dermatophilus dermatonomus, the causal agent of ovine mycotic dermatitis. Aust J Exp Biol Med Sci. 1961 Oct;39:463–476. [PubMed] [Google Scholar]
- THOMPSON R. E. A species of Rhizobium isolated from strawberry foot-rot in the sheep. J Pathol Bacteriol. 1954 Oct;68(2):445–452. doi: 10.1002/path.1700680218. [DOI] [PubMed] [Google Scholar]