RIB402
A.oryzae var. brunneus Murakami
Colony on CD plate Colony on koji extract plate
Mycological characters
Color of old slant culture Diameter (mm) of colony at 34 C Reverse side of Colony Sclerotia
Wrinkling Color
3 5 6 1 1
Roughness of stalk Length of stalk (mm) Diameter of vesicles (μ) Roughness of conidia Diameter of conidia (μ)
4 4 1 3 2
Ratio of biseriate sterigmata (%) Production
Kojic acid Pigments Aflatoxins Amylase
1 1 3 1 4
Coloration of hydroquinone Reduction of methylene blue Browning of rice koji Pink color of conida in meidum with
Anisic acid Anisaldehyde
4 5 2 4 1
Note Preserved over 50 years
ITS type A2a, AFHC type A. oryzae group2 (Tominaga et. al, AEM, 72, 484 (2006), Kiyota et. al, JBB, 111, 512 (2011))
conidia1 conidia2 conidia3
Photographs of conidiophore



National Research Institute of Brewing