. Cultural studies of species of Penicillium. Penicillium -- Cultures and culture media; Fungi -- Cultures and culture media. PENIdLLIUM NO. 24. 67 margin of unripened fruit and submerged mycelium during the growing period. Reverse of colony and mm â¢ilium colorless under all conditions studied. eraging about 250//, in length, either arising separately or as lateral 1 warn In-- of hyphae just above the substratum. Conidial fructification up to 200/j in length produced by various branching from the conidiophores in which cadi primary is often divergent to produce separate massof conidia
. Cultural studies of species of Penicillium. Penicillium -- Cultures and culture media; Fungi -- Cultures and culture media. PENIdLLIUM NO. 24. 67 margin of unripened fruit and submerged mycelium during the growing period. Reverse of colony and mm â¢ilium colorless under all conditions studied. eraging about 250//, in length, either arising separately or as lateral 1 warn In-- of hyphae just above the substratum. Conidial fructification up to 200/j in length produced by various branching from the conidiophores in which cadi primary is often divergent to produce separate massof conidia. Conidiiferou8cells7 10 by 'â [â ' Conidia globose l/t, homogeneous blue-green, Bmooth, seeming to lose vitality rapidly under laboratory conditions. Colonies liquefy gelatin in 7 to 12 days so that they lie in pels of liquid. Litmus reaction strongly alkaline. Found in the culture- from Camemberl cheese in the laboratories at Men--. Conn. Differs from the preceding and from P. citrinum by its longer conidiophores, the alternate branching of its fructification, the Bize of its spores, and by failure to color the substrata. The relative value of ellipticity of conidia as a diagnostic character appear- to be questionable. This form is therefore presented under cultural number ââ â. Fig. 25.âPenicillium No. 24: a. h, branching and arrangement of branches in conidial fructification! X no); c, d, (. conidiiferous cells and conidia < < 1,400); g, , sketches of form and arrangement of conidiophores (X 140); m, n, germination of conidia (X9O0 . only, whereas the preceding bas been identified from accidental cultures more fre- quently, and hence j~ given oame and description as a species. Mill RAX DATA. Color deep green (blue-green), becoming brown when old and exposed; reverse white or cream; color in media, none. (»dor, cone. Fifteen per cent gelatin in water, characteristic colony; liquefaction, rapid - 11 days or even less; litmus reaction alkaline, potato p
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Keywords: ., bookcentury1900, bookdecade1910, bookpublisherwashi, bookyear1910
