Ophiostoma haidaense, sp. nov., a new member of the O. piceaespecies complex associated with yellow-cedar, Callitropsis nootkatensis

Autor: Feau, Nicolas, Tanney, Joey B., Herath, Padmini, Zeglen, Stefan, Hamelin, Richard C.
Zdroj: Mycologia; September 2024, Vol. 116 Issue: 5 p694-707, 14p
Abstrakt: ABSTRACTOphiostoma haidanensisis described as a new species of the Ophiostoma piceaecomplex isolated from yellow-cedar (Callitropsis nootkatensis(D. Don) Oerst. ex D.P. Little) sapwood in the Haida Gwaii island archipelago and the North Coast of British Columbia, Canada. The fungus is characterized by the production of a typical sporothrix-like asexual morph but is distinguished morphologically from other members of the O. piceaespecies complex by its large, multiseptate primary conidia. Phylogenetic analysis of DNA sequences from the nuc rDNA internal transcribed spacer region ITS1-5.8S-ITS2 (ITS) and the β-tubulin (BTUB) and translation elongation factor 1-α (TEF1) genes supports the inclusion of O. haidensisas a distinct member within the O. piceaecomplex. To our knowledge, this is the first report of a blue stain fungus infecting yellow-cedar, an ecologically, culturally, and economically important conifer naturally distributed along the coastal forests of the Pacific Northwest in North America.
Databáze: Supplemental Index