Journal article
Culture-based identification to examine spatiotemporal patterns of fungal communities colonizing wood in ground contact
Mycologia, Vol.111(5), pp.703-718
2019
Abstract
Timber durability is often assessed using small wood stakes exposed in direct soil contact, and the assessment generally emphasizes effects on wood rather than organisms involved. Understanding fungal colonization patterns can help identify key decay agents under varying conditions and use these patterns to improve wood protection strategies. Fungal colonization of red alder (Alnus rubra), Douglas-fir (Pseudotsuga menziesii) heartwood/sapwood, and western redcedar (Thuja plicata) field stakes was assessed over 2 y in western Oregon. Spatiotemporal fungal community variations were identified via culturing and DNA sequencing, where 814 isolates were identified from 84 stakes. Forty-six ascomycete genera were identified, with Phialophora, Trichoderma, and Epicoccum species occurring most frequently. Twenty-three basidiomycete genera were identified, with Trametes and Phanerochaete being the most common. Douglas-fir and western redcedar stakes contained the highest and lowest diversity levels, respectively, reflecting natural durability differences of these species. Fungal species abundance was higher below ground than in the above ground and groundline zones, likely reflecting more stable moisture regimes, proximity to soil-based fungi, and potential nutrient migration into wood beneath the soil surface. Ascomycetes were proportionally more abundant early in the exposure period, but basidiomycetes were also observed early in the process, and there appeared to be no consistent colonization pattern.
Details
- Title
- Culture-based identification to examine spatiotemporal patterns of fungal communities colonizing wood in ground contact
- Authors
- Paola Torres-Andrade (Author) - Oregon State University, United StatesJeffrey J Morrell (Author) - University of the Sunshine CoastJed Cappellazzi (Author) - Oregon State University, United StatesJeffrey K Stone (Author) - Oregon State University, United States
- Publication details
- Mycologia, Vol.111(5), pp.703-718
- Publisher
- Taylor & Francis Inc.
- Date published
- 2019
- DOI
- 10.1080/00275514.2019.1631050
- ISSN
- 0027-5514; 0027-5514
- Organisation Unit
- University of the Sunshine Coast, Queensland; National Centre for Timber Durability and Design Life; Forest Research Institute
- Language
- English
- Record Identifier
- 99451419902621
- Output Type
- Journal article
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- Collaboration types
- Domestic collaboration
- International collaboration
- Web Of Science research areas
- Mycology