産膜酵母菌に關する研究 (第3報) : Pichia屬 (3)

概要

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1) Many strains of film yeasts isolated from several kinds of sources in Japan have been included in a new form which the authors designate Pichia fermentans LODDER form. japonica.2) The salient characteristics of Pichia fermentans form. japonica are as follows : Cells in malt extract are oval or ellipsoidal, not so elongeted as the species proper, 4.6〜2.0×7.5〜2.0 μ. A thin, dull white, wrinkled pellicle is formed on malt- or koji extract. Only glucose, fructose and mannose are fermented, glucose is assimilated, maximum temperature for the growth 39〜40℃. Ascospores are hat-shaped, angular or hemispheroidal, 2.1〜1.3×1.3〜1.1 μ in size, 2〜3 per ascus. Spores have been obtained only on carrot plug, potato agar or malt extract. Nitrate and nitrite assimilation : negative. Ester formation and splitting of arbutin are absent or weak.
社団法人日本生物工学会の論文
1955-08-15