土壌中における放線菌の分布 : (第10報) 単胞子菌群の新属および新種

概要

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We propose that the genus Thermomonospora Henssen (1957) be divided into two genera, Thermomonospora emend., with a Type III cell wall and Saccharomonospora gen. nov., with a Type IV cell wall. This will help remove the confusion from the classification of monosporic actinomycetes. New diagnoses of both genera are described. Two new species of mesophilic monosporic actinomycetes are described under the names Thermomonospora mesophila sp. nov. and Thermoactinomyces peptonophilus sp. nov.. The former species is characterized by a smooth spore surface, a non-branched sporophore and mesophilic growth, and the latter by the morphology of its mycelium, particular nutritional requirements and mesophilic growth. Members of Thm. mesophila and Sam. viridis have been commonly isolated from soils collected in Yamanashi prefecture, Japan, using a selective method (dry heat of soil sample, plate culture with MGA-SE agar or salts-starch agar plus B-vitamins and antibiotics, pH 8.0,at 40℃ : 10^2-10^3 colonies per g of soil). Tha. peptonophilus occurred only in colonies of certain actinomycetes on detection plates with MGA-SE agar because of the particular nutritional requirement for growth of this organism.
社団法人日本生物工学会の論文
1971-11-25