Aspergillus brasiliensis Varga et al.
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Colonies initially white, mycelium growing rapidly (to cover a plate in 8 to 10 days), soon producing dense layer of erect smooth-stiped, thick-walled conidiophores terminated by globose vesicles bearing phialides (uniseriate) or (commonly) metulae with phialides (biseriate) which produce dry chains of conidia. Reverse of plate pale yellow or cream, often showing radiating ridges in mycelium. Spore heads radiate, sometimes dividing into columns with age, initially pale, becoming dark brown to black. Individual conidia spherical, mid-to-dark brown, highly roughened with ridges and blunt or pointed protuberances, 3.5 to 6 µm in diameter.
Will grow equally well up to at least 37°C. Sporulation may be inhibited in plates sealed completely with tape or film. Colonies grown directly from rehydrated spores may exhibit sectoring, with areas of varying levels of sporulation.
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Inoue Y, et al. Metabolism of 2-ketoaldehydes in mold: purification and characterization of glyoxalase I from Aspergillus niger. J. Biochem. 102: 583-589, 1987. PubMed: 3123469
Klausmeier RE. Results of the second interlaboratory experiment of biodeterioration of plastics. Int. Biodeterior. Bull. 8: 3-7, 1972.
Sakano Y, et al. Pullulan 4-glucanohydrolase from Aspergillus niger. Arch. Biochem. Biophys. 153: 180-187, 1972. PubMed: 4650606
Schmidt E, French DW. Two-day mold testing using a contact agar method. For. Prod. J. 29: 39-42, 1979.
Varga J, et al. Aspergillus brasiliensis sp. nov., a biseriate black Aspergillus species with world-wide distribution. Int. J. Syst. Evol. Microbiol. 57: 1925-1932, 2007.