. Cultural studies of species of Penicillium. Penicillium -- Cultures and culture media; Fungi -- Cultures and culture media. 30 CULTURAL STUDIES OF SPECIES <JE PEKICILLIUM. of a main branch and one lateral branch, each producing a whorl of branchlets bearing crowded verticils of conidiiferous cells, 12-14 by 3^. Conidia breaking off in masses in handling old cultures, which rise in clouds when shaken. Pronounced odor in cul- tures containing cane sugar. Chains of conidia loosely divergent, long; conidia 2-3 by 3-5/t, cylindrical to elliptical or slightly ovate, clear green by transmitted l
. Cultural studies of species of Penicillium. Penicillium -- Cultures and culture media; Fungi -- Cultures and culture media. 30 CULTURAL STUDIES OF SPECIES <JE PEKICILLIUM. of a main branch and one lateral branch, each producing a whorl of branchlets bearing crowded verticils of conidiiferous cells, 12-14 by 3^. Conidia breaking off in masses in handling old cultures, which rise in clouds when shaken. Pronounced odor in cul- tures containing cane sugar. Chains of conidia loosely divergent, long; conidia 2-3 by 3-5/t, cylindrical to elliptical or slightly ovate, clear green by transmitted light, very variable in size but usually within the limits given. Masses of spores con- tinue to increase from 2 to 3 weeks. Petri-dish colonies partially and slowly liquefy gelatin (12 to 20 days). Numerous white sclerotia are produced upon the surface of. Fig. 2.—Ptnuittium italicum Wehmer: a, b, c, d, c, f, g, types of branching, formation of verticils of conidiiferous cells and conidial chains (a, e, /, X 900; 6, c, d, g, X 1,400); j, k, sketches of conidial fructi- fications (X 140); I, m, n, swelling and germination of conidia (X 900). the medium after 2 to 3 weeks' growth, especially upon fruits and other acid media rich in sugar. Cosmopolitan; characteristic of decaying oranges, which become bright blue-green with this mold as contrasted with the olive-green species which is often associated with it upon the same fruit. These contrasting colors are illustrated by Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Thom, Charles, 1872-1956. Washington, Govt. Print. Off.
Size: 1231px × 2030px
Photo credit: © The Book Worm / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1910, bookpublisherwashi, bookyear1910
