title: Polyphasic taxonomy of Aspergillus section Usti.
abstract: Aspergillus ustus is a very common species in foods, soil and indoor environments. Based on chemical, molecular and morphological data, A. insuetus is separated from A. ustus and revived. A. insuetus differs from A. ustus in producing drimans and ophiobolin G and H and not producing ustic acid and austocystins. The molecular, physiological and morphological data also indicated that another species, A. keveiisp. nov. is closely related but distinct from A. insuetus. Aspergillus section Usti sensu stricto includes 8 species: A. ustus, A. puniceus, A. granulosus, A. pseudodeflectus, A. calidoustus, A. insuetus and A. keveii together with Emericella heterothallica.
authors.affiliation: CBS Fungal Biodiversity Centre, PO Box 85167, NL-3508 AD Utrecht, the Netherlands.
authors.forename: J
authors.initials: J
authors.lastname: Houbraken
authors.forename: M
authors.initials: M
authors.lastname: Due
authors.forename: J
authors.initials: J
authors.lastname: Varga
authors.forename: M
authors.initials: M
authors.lastname: Meijer
authors.forename: J C
authors.initials: JC
authors.lastname: Frisvad
authors.forename: R A
authors.initials: RA
authors.lastname: Samson