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Publication Information

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Title: Transcriptome of an Armillaria root disease pathogen reveals candidate genes involved in host substrate utilization at the host-pathogen interface

Author: Ross-Davis, A.L.; Stewart, J.E.; Hanna, J.W.; Kim, M.-S.; Knaus, B.J.; Cronn, R.; Rai, H.; Richardson, B.A.; McDonald, G.I.; Klopfenstein, N.B.

Date: 2013

Source: Forest Pathology. 10 p. doi: 10.1111/efp.12056

Publication Series: Journal/Magazine Article (JRNL)

Description: Armillaria species display diverse ecological roles ranging from beneficial saprobe to virulent pathogen. Armillaria solidipes (formerly A. ostoyae), a causal agent of Armillaria root disease, is a virulent primary pathogen with a broad host range of woody plants across the Northern Hemisphere. This white-rot pathogen grows between trees as rhizomorphs and attacks sapwood as mycelial fans under the bark. Armillaria root disease is responsible for reduced forest productivity due to direct tree mortality and non-lethal infections that impact growth. Here, we characterize a transcriptome of a widespread, virulent genet (vegetative clone) of A. solidipes isolated from a mycelial fan on a natural grand fir (Abies grandis) sapling in northern Idaho, USA. This transcriptome contributes to the growing body of resources for studies on fungal pathogens of woody plants, and our results provide useful insights towards identifying specific genes with potential roles associated with pathogenesis and other metabolic functions.

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  • This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.

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Ross-Davis, A.L.; Stewart, J.E.; Hanna, J.W.; Kim, M.-S.; Knaus, B.J.; Cronn, R.; Rai, H.; Richardson, B.A.; McDonald, G.I.; Klopfenstein, N.B. 2013. Transcriptome of an Armillaria root disease pathogen reveals candidate genes involved in host substrate utilization at the host-pathogen interface. Forest Pathology. 10 p. doi: 10.1111/efp.12056.

 


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