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Original Article

Studies on aerobic actinomycetes isolated from soil

I. Isolation and identification of strains

&
Pages 140-146 | Published online: 09 Jul 2009
 

Abstract

A total of 134 samples of soil were tested for the presence of aerobic actinomycetes by paraffin baiting technique. The various pathogenic aerobic actinomycetes capable of utilizing paraffin as a sole source of carbon were found to be widely prevalent in the soil of Delhi and adjoining areas. The 157 strains that were isolated could be classified into Nocardia asteroides (52), N. brasiliensis (8), N. caviae (4), Nocardia spp. (40) and Streptomyces spp. (53). The basis of identification and their pathogenicity in mice are discussed.

Résumé

Des actinomycètes aérobies ont été isolés de cent trente quatre échantillons de sol par la technique du piège de paraffine. Divers actinomycètes aérobies pathogènes, capables d'utiliser la paraffine comme seule source d'azote, ont été trouvés en grand nombre dans le sol de Delhi et des régions avoisinantes. Les 157 souches isolées appartiennent aux espèces suivantes: N. asteroides (52), N. caviae (4), Nocardia sp. (40), Streptomyces sp. (53). Leur base d'identification et leur pathogénicité pour la souris sont discutées.

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