Chapter: Microbiology and Immunology: Bacteriology: Actinomycetes

Nocardia

Nocardia are aerobic actinomycetes that are ubiquitous in thesoil, decaying organic matter, and water.

Nocardia

Nocardia are aerobic actinomycetes that are ubiquitous in thesoil, decaying organic matter, and water.

Classification

The genus Nocardia has been classified into 10 species on the basis of phylogenetic analysis of 16S rRNA. These species can be differ-entiated on the basis of biochemical reactions. Nocardia asteroides, Nocardia brasiliensis, Nocardia otitidiscaviarum, and Nocardia farcinica are the species frequently associated with human infections. Nocardia species also cause infection in animals, including bovinemastitis in cattle and nocardiosis in horses.

History

Nocardia infection was first described by French veterinarianEdmund Nocard in a pulmonary and cutaneous disease of cattle. The genus Nocardia is named so in honor of the scientist.

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Microbiology and Immunology: Bacteriology: Actinomycetes : Nocardia |


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