New species in Aspergillus section Usti and an overview of Aspergillus section Cavernicolarum. Issue 10 (4th October 2020)

• Record Type: Journal Article
• Authors: Sun, Bing Da; Houbraken, Jos; Frisvad, Jens C.; Jiang, Xian Zhi; Chen, Amanda Juan; Samson, Robert A.
• Is Part Of: International journal of systematic and evolutionary microbiology. Volume 70:Issue 10(2020)
• Page Start: 5401
• Page End: 5416
• Publication Date: 2020-10-04
• Subjects: Ascomycota -- Aspergillaceae -- Aspergillus egyptiacus -- Aspergillus ustus -- Eurotiales -- multi-gene phylogeny; Microbiology -- Periodicals; Microbiology -- Classification -- Periodicals; 579
• DOI: 10.1099/ijsem.0.004425
• Languages: English
• ISSNs: 1466-5026

Abstract

Abstract : Aspergillus sections Usti and Cavernicolarum are accommodated in the subgenus Nidulantes . In the present study, a polyphasic approach using morphology and multi-gene phylogeny was applied to investigate the taxonomy of these two sections. Based on the phylogenetic analysis, Aspergillus section Usti includes 25 species, which can be assigned to four series: Calidousti, Deflecti, Monodiorum and Usti. Aspergillus sigarelli is newly described in this section and this species was isolated from a cigarette from PR China and belongs to series Calidousti . It is clearly distinct from other members in this series based on ITS, BenA, CaM and RPB2 sequences. Aspergillus section Usti members like A. calidoustus and A. granulosus are important opportunistic pathogens, it is speculative that more pathogenetic species will be found by using polyphasic taxonomy approaches. Aspergillus section Cavernicolarum includes five species, the growth rates on agar media and size and ornamentation of conidia are important characters for differentiating species in section Cavernicolarum .