Aspergillus oryzae (Ahlb.) Cohn, Jber.

Ganeshalingam, Archchana & Daranagama, Dinushani A., 2022, First comprehensive study on distribution frequency and incidence of seed-borne pathogens from cereal and legume crops in Sri Lanka, Phytotaxa 531 (3), pp. 267-281 : 274

Aspergillus oryzae (Ahlb.) Cohn, Jber. schles. Ges. vaterl. Kultur 61: 227 (1884) [1883]

Index Fungorum registration number: 426783

Colonies on PDA are moderately fast-growing, reached approximately ¾ th of the 9 cm plate in two weeks at 28–30 0 C, start as white or pale yellow from inoculation points and turn green, reverse green, irregular, margin curled, appearance flat, powdery, concentric circles ( Figure 1d, e , 5a, b ). Conidiophore very long, 4–5 mm (x̄=4.7) in length and 3–12 μm (x̄=9) in width, branched, hyaline with flask-shaped vesicles of 40–50 μm (x̄=42), Phialides clustered terminal, covering the surface of the vesicle ( Figure 5c .), Conidial heads 100–300 μm (x̄=210) diam. globose with conidia in acropetal chain arrangement ( Figure 1f ) with longitudinal and transverse septations. Conidia 4.5–7.5 μm (x̄=6.5), greenish-brown, spherical, smooth-walled.

Figures

FIGURE 1. Colony morphology (upper surface and lower surface) and microscopic features (conidia, conidiophore, and spores) respectively of fungal pure cultures from Arachis hypogea kernel on PDA after 10 days at 28–30 0C; a–c Rhizopus oryzae, d–f Aspergillus oryzae, g–i Aspergillus niger, j–l Macrophomina phaseolina, m–o Talaromyces oumae-annae and p–r Aspergillus niger.

FIGURE 5. Colony morphology (upper surface and lower surface) and microscopic features (conidia, conidiophore, and spores) respectively of fungal pure cultures from Vigna sinensis on PDA after 10 days at 28–30 0C; a–c Aspergillus oryzae, d–f Aspergillus sp., g–i Aspergillus flavus and j–l Aspergillus niger.