Phylum:Anamorphic fungi >> Class: Anamorphic fungi >> Order: Anamorphic fungi | ||||
BCRC Number: | NO BCRC Number! | |||
Scientific Name: | Penicillium aculeatum | |||
Author: | Subgenus: Biverticillium Penicillium aculeatum Raper & Fennell, Mycologia 40: 535. 1948. |
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Description: | CYA, 25°C, 7 days: colony diameters 32-34 mm, deep, sulcate, floccose, margin narrow, entire; mycelium yellowish grey to dull yellow (3B2-3), white or faint pinkish (9A2) to brownish grey brown (6E2-4); conidiogenesis moderate, greenish grey to greyish green (25B-C2-3, 26C2-3); exudate clear; soluble pigment absent; reverse greyish orange (5B3-5). MEA, 25°C, 7 days: colony diameters 41-43 mm, plane, floccose, entire somewhat raised, funiculose, margin narrow, entire; mycelium yellowish white to pastel yellow (1A2-4); co-nidiogenesis moderate to abundant, greyish green to deep green (29D-E6-8); exudate clear; soluble pigment absent; reverse yellowish white to light yellow (3-4A2-4) or yellowish grey to dull yellow (3B2-3). G25N, 25°C, 7 days: germination with limited growth. CYA, 5°C, 7 days: no germination. CYA, 37°C, 7 days: colony diameters 22-24 mm; deep, sulcate, floccose; margin broad, entire; mycelium pinkish (8A2), pinkish pale red (7A2-3, 9A2-3); conidiogenesis moderate, greenish-grey to dull green (27C-D2-3); exudate clear, greenish grey (29-30B2); soluble pigment absent; reverse pinkish to pastel red (7-8A2-4) or greyish green (30C-D3-4). Conidiophores and conidia: conidiophores on MEA borne from superficial and aerial mycelium; stipes septate, 98-288 × 2.0-2.8 μm, smooth, thin walled; penicilli mostly biverticillate; metulae in verticils of 3-8, smooth 9.5-11.1 × 2.4-3.6 μm; phialides in verticils of 4-7, acerose to somewhat ampulliform, smooth, 7.9-12.7 × 2.4-2.7 μm, collula gradually tapering; conidia spheroidal, 3.2-3.6 μm, very roughened to spinose, thin walled, borne in irregular columns. | |||
Specimens: | Taiwan, Keelung, common species, from rhizosphere of bamboo, 30 Dec 1988. |
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Habitat: | rom rhizosphere of bamboo. | |||
Distribution: | Taiwan, USA, Zaire. |
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References: | Tzean, SS et al. 1994. |
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Provided: | S. S. Tzean and S. C. Chiu |
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Note: | Under scanning electron microscopy, P. aculeatum conidial surface is spinose, in contrast P. verruculosum conidial surface is verrucose with striations. | |||