Description of Holtermanniella gen. nov., including Holtermanniella takashimae sp. nov. and four new combinations, and proposal of the order Holtermanniales to accommodate tremellomycetous yeasts of the Holtermannia clade

Michael Wuczkowski, Volkmar Passoth, Benedetta Turchetti, Ann Christin Andersson, Matilda Olstorpe, Arja Laitila, Bart Theelen, María Van Broock, Pietro Buzzini, Hansjörg Prillinger, Katja Sterflinger, Johan Schnürer, Teun Boekhout, Diego Libkind

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45 Scopus citations

Abstract

The novel genus Holtermanniella is proposed here to accommodate four Cryptococcus species closely related to Holtermannia corniformis that are included in the Holtermannia clade (Basidiomycota, Agaricomycotina). Thus, four novel combinations are proposed: Holtermanniella nyarrowii comb. nov., Holtermanniella festucosa comb. nov., Holtermanniella mycelialis comb. nov. and Holtermanniella wattica comb. nov. In addition, a novel anamorphic yeast species was studied with 15 isolates obtained from different habitats around the world. Analysis of the sequences of the D1/D2 region of their large subunit rDNA showed that the novel species is placed phylogenetically within the Holtermannia clade of the Tremellomycetes (Agaricomycotina, Basidiomycota). PCR fingerprinting and sequencing of ITS1-5.8S-ITS2 showed genetic intraspecific variability among the strains: three groups were formed, which did not correlate with geographical origin or substrate. This novel species, designated the type species of Holtermanniella gen. nov., is described as Holtermanniella takashimae sp. nov.; the type strain is CBS 11174T (=HB 982T =DBVPG 8012T). The order Holtermanniales ord. nov. is proposed here to include Holtermannia (the type genus) and Holtermanniella.

Original languageEnglish (US)
Pages (from-to)680-689
Number of pages10
JournalInternational Journal of Systematic and Evolutionary Microbiology
Volume61
Issue number3
DOIs
StatePublished - Mar 2011
Externally publishedYes

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