title: Taxonomic revision of the cellulose-degrading fungus Acremonium cellulolyticus nomen nudum to Talaromyces based on phylogenetic analysis.
abstract: The cellulase-producing fungal strain Y-94, isolated in Japan and invalidly described as Acremonium cellulolyticus nom. nud. strain Y-94, seldom forms enteroarthric conidia under nutrient starvation conditions. Phylogenetic analysis using ITS1-5.8S-ITS2 and RNA polymerase II large subunit gene sequences revealed that strain Y-94 is closely related to Talaromyces, given that these Y-94 sequences showed 100% identity with those of Talaromyces pinophilus NBRC 100533T. By contrast, the identity between β-tubulin-encoding genes from strain Y-94 and T. pinophilus NBRC 100533Twas 98.1%. Morphological and phenotypic differences between these strains in colony color, conidiophore formation, and cellulase productivity were observed. Together, these data indicated that strain Y-94 belonged to the genus Talaromyces. We propose that strain Y-94 is a new species, Talaromyces cellulolyticus, on the basis of morphology and molecular evidence. The ex-holotype is Y-94 (= FERM BP-5826, CBS 136886 [holotype] TNS-F-48752).
authors: Biomass Refinery Research Center, National Institute of Advanced Industrial Science and Technology (AIST), Higashi-Hiroshima, Hiroshima, Japan.
authors: Tatsuya
authors: T
authors: Fujii
authors: Tamotsu
authors: T
authors: Hoshino
authors: Hiroyuki
authors: H
authors: Inoue
authors: Shinichi
authors: S
authors: Yano
keywords: cellulase; filamentous fungi; taxonomy