放線状菌の分類に關する研究 (第7報) : Stereptomyces spec. No.190 の形態

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We researched microscopic morphological characteristics of Streptomyces spec. No. 190. The strain was isolated from soil in our laboratory.The morphological characteristics are considerably different from the four strains reported in the previous papers.The aerial mycelia are well developed on glucose-aspargine agar and CB series media agar, but a little good on CZAPEK-DOX agar, powderly and olive gray to brownish gray. The vegetative mycelia are yellow. The aerial mycelia are irregularly wavy and branched monopodially. The spirals of this strain are formed on the apexes of hyphae or as side branches and they are often sympodially branched from one point of spiral hyphae, becoming spirals again. These sympodial branchings are often repeated successively one after another and from the chains of spirals. Frequently the spiral hyphae are bent on the upper parts. The spirals have a diameter of 2.8〜6.0μand are very compact, 1〜6 turns, short cylindrial or snail-like.The aerial hyphae have a diameter of 0.8〜1.5μ, and no septa. The oidiospores are short rod-shaped ; 1.0〜1.3 by 1.1〜1.6μ.
社団法人日本生物工学会の論文
1955-04-15