title: Outbreak of Rust Caused by Coleosporium asterum on Solidago virgaurea var. gigantea in Ulleung-do.
abstract: From June to October 2012, severe outbreaks of rust disease on Solidago virgaurea var. gigantea were observed in 5 different regions of Ulleung-do, Korea. Typical rust symptoms appeared as yellow spots, uredinia on leaves, and massive urediniospores covering the entire plant. Severely infected plants became discolored and died. On the basis of its morphological and molecular characteristics, the causal agent was identified as Coleosporium asterum. This pathogen has been reported as rust disease on S. virgaurea in the Canada and United States. In Korea, rust disease on S. virgaurea var. gigantea was reported as Uromyces rudbeckia in 1992. To the best of our knowledge, C. asterum is a novel rust pathogen on S. virgaurea var. gigantea in Korea.
authors.affiliation: School of Applied Biosciences, Kyungpook National University, Daegu 702-701, Korea.
authors.forename: Chang-Gi
authors.initials: CG
authors.lastname: Back
authors.affiliation: School of Applied Biosciences, Kyungpook National University, Daegu 702-701, Korea. ; Ulleunggun Agriculture Technology Center, Ulleung 799-802, Korea.
authors.forename: Gu-Youn
authors.initials: GY
authors.lastname: Nam
authors.affiliation: School of Applied Biosciences, Kyungpook National University, Daegu 702-701, Korea.
authors.forename: Seung-Yeol
authors.initials: SY
authors.lastname: Lee
authors.affiliation: School of Applied Biosciences, Kyungpook National University, Daegu 702-701, Korea. ; Institute of Plant Medicine, Kyungpook National University, Daegu 702-701, Korea.
authors.forename: Hee-Young
authors.initials: HY
authors.lastname: Jung
keywords: 28S rDNA; Coleosporium asterum; Korean goldenrod; Phylogenetic analysis; Rust disease