土壌中における放線菌の分布 : (第9報) Microbispora属およびMicrotetraspora属の新種とその分離法

概要

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Two new species of mesophilic oligosporic actinomycetes are described under the names Microbispora echinospora and Microtetraspora niveoalba, and their distribution in soil was investigated using a special method. Aerial mycelium of the former species differentiates into long axial hyphae and spore bearing side branches. The spore surface is spiny. These characteristics have not been observed on any known member of the genus Microbispora. The latter species is characterized in the genus Microtetraspora by a type III cell wall, a snow white aerial mass, and a yellow-brown color group substrate mycelium. Colonies of these species were effectively detected and counted on MGA-SE agar plates incubated at 40℃ for a month, using dry heated soil samples. Members of Mib. echinospora were more commonly distributed than Mit. niveoalba in the various soils examined. However, the numbers per gram in the soil samples were usually less than a thousand.
社団法人日本生物工学会の論文
1971-11-25