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Streptosporangium Bovinum sp. Nov. from Cattle Hoofs
Author(s) -
Batista A. Chaves,
Shome S. K.,
Lima J. Americo
Publication year - 1963
Publication title -
international journal of dermatology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.677
H-Index - 93
eISSN - 1365-4632
pISSN - 0011-9059
DOI - 10.1111/ijd.1963.2.1.49
Subject(s) - sporangium , mycelium , hyaline , inoculation , botany , biology , operculum (bryozoa) , fragmentation (computing) , microbiology and biotechnology , hypha , veterinary medicine , horticulture , spore , medicine , ecology , genus
Summary The paper describes Streptosporangium bovinum Batista, Shome and Lima n. sp., a new species isolated from cattle hoofs in the State of Alagôas, in Brazil. Taxonomically, the new species differs from S. Album , S. viridialbum , S. amethystogenes and S. vulgaris by its cultural characteristics, with production of pigment in various media, and by its physiologic properties. Morphologically, it does not show any marked distinction from other species; it presents delicate mycelium, 0.6 to 1 µ in diameter, septate and hyaline, and forms yellowish‐cream, circular colonies with concentric zonation, granular to velvety surface, 1.2 to 3.0 cm. in diameter, within three weeks, in nutrient media. The mycelium shows fragmentation similar to that of Streptomyces , with terminal or lateral, globose sporangia 5 to 7 p in diameter, and sporangiospores of 1.2‐1.5 x 0.8‐1.0 µ. The microorganism was isolated from the hoofs and lesions in surrounding areas of three bulls which exhibited marked restriction of motion apparently caused by pain associated with the infection. The infected hoofs showed vertical cracks and some concentric brownish‐black patches. When material from the hoofs was placed in a humid chamber, yellow, circular colonies of Streptosporangium , 1 to 3 mm. in diameter, appeared. Inoculation of the pathogen on guinea pigs yielded negative results. Treatment of the infected animals with penicillin injections and local application of copper sulfate solution (3%) resulted in the cure of the animals.