Open AccessNew species in Aspergillus section Usti and an overview of Aspergillus section Cavernicolarum
Author(s) -
Bing Sun,
Jos Houbraken,
Jens Christian Frisvad,
Xian Zhi Jiang,
Amanda Juan Chen,
Robert A. Samson
Publication year - 2020
Publication title -
international journal of systematic and evolutionary microbiology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.925
H-Index - 173
eISSN - 1466-5034
pISSN - 1466-5026
DOI - 10.1099/ijsem.0.004425
Subject(s) - biology , subgenus , aspergillus , taxonomy (biology) , phylogenetic tree , section (typography) , phylogenetics , botany , zoology , microbiology and biotechnology , gene , computer science , genetics , operating system
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 .