aspergillus microcysticus aspergillus microcysticus aspergillus microcysticus is a species of fungus in the genus aspergillus. aspergillus microcysticus produces aspochalasin a, aspochalasin c, aspochalasin d, and the antibiotic asposterol. aspergillus microcysticus scientific classification kingdom: fungi division: ascomycota class: eurotiomycetes order: eurotiales family: trichocomaceae genus: aspergillus species: a. microcysticus binomial name aspergillus microcysticussappa (1955) type strain atcc 16826, bcrc 33360, cbs 120.58, ccrc 33360, imi 139275, nrrl 4749, qm 8158, wb 4749 growth and morphology a. microcysticus has been cultivated on both czapek yeast extract agar (cya) plates and malt extract agar oxoid® (meaox) plates. the growth morphology of the colonies can be seen in the pictures below. aspergillus microcysticus growing on cya plate aspergillus microcysticus growing on meaox plate