 Phylum：Anamorphic fungi >> Class： Anamorphic fungi >> Order： Anamorphic fungi |
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 BCRC Number： |
32422 | |||
| Scientific Name： |
Aspergillus oryzae var. oryzae | |||
| Author： |
Aspergillus oryzae (Ahlburg) Cohn var. oryzae, Jahresbericht Schles. Ges. Vaterl. Kult. 61: 226. 1884. |
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| Description： |
Colony diameters on Czapek’s Agar 3.5 to 4.0 cm in 10 days at 25°C, plane to radially fur-rowed; mycelium white; reverse uncolored to cream color; conidial heads radiate or loosely columnar, amber yellow to citron yellow or gnaphalium green to pea green (R., Plate, XVI, XLVII); stipes 110-1030 × 4.8-20.0 μm, smooth to rough, uncolored; vesicles 8.0-40.0 μm wide, clavate, pyriform or subspherical. Aspergilla uniseriate, phialides covering the upper 2/5 to 3/4 of the vesicle, 6.4-19.8 × 3.6-8.7 μm. Conidia spherical, subspherical or ellipsoi-dal, up to 11.0 μm long, with walls smooth to irregularly roughened. Colony diameters on Malt Extract Agar 5.0 to 5.5 cm in 10 days at 25°C, plane, floccose, with defined zonation; conidia olive-yellow to yellowish citrine (R., Plate, XXX, XVI); mycelium white; reverse uncolored to cream-buff (R., Plate XXX). | |||
| Specimens： |
Taiwan, Hwalien Pref., rare species from stored paddy rice. 13 Feb 1988 (CCRC 32422). |
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| Habitat： |
from stored paddy rice. | |||
| Distribution： |
Taiwan, USA Virginia, Japan. |
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| References： |
Tzean, SS et al. 1990. |
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| Provided： |
S. S. Tzean and J. L. Chen |
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| Note： |
A. oryzae var. oryzae in having not floccose, amber yellow to pea green colonies, in contrast to A. oryzae var. effusus, in which colonies are floccose, white only dotted with green in sporulation areas. Also conidia of A. oryzae var. oryzae (maximum 11 μm long) are much longer than A. oryzae var. effusus (maximum 6 μm long). | |||