Ophiostoma haidaense, sp. nov., a new member of the O. piceae species complex associated with yellow-cedar, Callitropsis nootkatensis
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View abstract on PubMed
Summary
This summary is machine-generated.A new blue stain fungus, Ophiostoma haidanensis, has been identified infecting yellow-cedar in British Columbia. This discovery marks the first report of such a fungus on this important conifer species.
Area Of Science
- Mycology
- Plant Pathology
- Forestry
Background
- Yellow-cedar (Callitropsis nootkatensis) is a vital conifer in Pacific Northwest coastal forests.
- Blue stain fungi, typically in the Ophiostoma genus, can impact tree health.
- Previous research has not documented blue stain fungi associated with yellow-cedar.
Purpose Of The Study
- To describe and classify a newly discovered fungus isolated from yellow-cedar.
- To determine the phylogenetic placement of this new fungus within the Ophiostoma piceae complex.
- To report the first instance of blue stain fungus infection in yellow-cedar.
Main Methods
- Morphological characterization of the asexual sporothrix-like morph.
- DNA sequencing of the internal transcribed spacer (ITS) region and beta-tubulin (BTUB) and translation elongation factor 1-alpha (TEF1) genes.
- Phylogenetic analysis to ascertain species complex relationships.
Main Results
- A new species, Ophiostoma haidanensis, was identified from yellow-cedar sapwood in British Columbia.
- The new species is distinguished by large, multiseptate primary conidia.
- Phylogenetic analyses confirm O. haidanensis as a distinct member of the Ophiostoma piceae complex.
Conclusions
- Ophiostoma haidanensis represents a novel species within the Ophiostoma piceae complex.
- This finding is the first record of a blue stain fungus associated with yellow-cedar.
- Further research may be needed to understand the ecological and pathological implications for yellow-cedar populations.
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