Aspergillus species

A. janus Raper & Thom.

Colony characteristics. Colonies (CzA) spreading irregularly, pale yellow-buff with dark green and white zones.

Microscopy. Conidial heads of two types: white and radiate, and green and columnar. Conidiophores with green heads, smooth walled, 300-400 micrometre in length; stipes hyaline to slightly yellow; species ovoidal; conidiogenous cells biseriate with metulae all over. Conidia spherical, dark green in mass, spinulose, 2.5-3.5 micrometre diam. Conidiospores with white heads, smooth walled, 2-2.5 micrometre in length, stipes hyaline to slightly yellow; vesicles clavate, biseriate, entire surface covered by metulae; conidia hyaline, minutely verrucose (smooth walled with light microscopy), (sub)spherical, 2-2.5 micrometre diam.

Pathogenicity. Keratitis (Neuhann, 1976)

References -

Selected historical references are listed below

Thomas, G.M. & Poinar, J.R. (1988). A fossil Aspergillus from eocene dominican amber. J. Paleont. 62(1): 141-143. Link

Kozakiewicz, Z. (1989). Aspergillus species on stored products. Mycol. Pap. 161: 1-188.

Neuhann, T., (1976). Clotrimazol in der Behandlung von Keratomykosen. Klin. Monatsbl Augenheilkd. 169: 459-462.

Raper, K.B. & Fennell, D.I. (1965).The genus  Aspergillus. Williams & Wilkins, Baltimore, 686 pp