Wood Decay Fungi Associated with Galleries of the Emerald Ash Borer
Author:
Simeto Sofía12ORCID, Held Benjamin W.1ORCID, Blanchette Robert A.1ORCID
Affiliation:
1. Department of Plant Pathology, University of Minnesota, 495 Borlaug Hall 1991 Upper Buford Circle, St. Paul, MN 55108, USA 2. Programa Nacional de Investigación en Producción Forestal, Instituto Nacional de Investigación Agropecuaria (INIA), Estación Experimental INIA Tacuarembó, Ruta 5 km 386, Tacuarembó 45000, Uruguay
Abstract
The emerald ash borer is causing dramatic losses following its introduction into North America, with hundreds of millions of ash trees killed. Attacked trees lose wood integrity rapidly after infestation and are prone to failure. The aim of this study was to investigate the wood degrading potential of Basidiomycota fungi previously found associated with EAB galleries. Laboratory soil and agar microcosm experiments showed that many of the white-rot fungi isolated were aggressive wood degraders. Trametes versicolor, Phlebia radiata and Phlebia acerina were among the top decomposers from the 13 tested fungi, resulting in as much as 70%, 72% and 64% weight loss, respectively, after 6 months of incubation. Micromorphological observations documented the significant wood cell wall degradation that had taken place. The decay capacity of these fungi confirms their contributing role to the loss of wood integrity in ash trees after EAB attack.
Funder
Minnesota Invasive and Terrestrial Plant and Pests Center, University of Minnesota, and USDA Hatch
Reference80 articles.
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2 articles.
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