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First Report of Frosty Mildew on S alix koreensis Caused by M ycopappus alni in K orea
Author(s) -
Park JiHyun,
Cho SungEun,
Lee Sang Hyun,
Shin HyeonDong
Publication year - 2013
Publication title -
journal of phytopathology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.53
H-Index - 60
eISSN - 1439-0434
pISSN - 0931-1785
DOI - 10.1111/jph.12133
Subject(s) - biology , pathogenicity , botany , mildew , fungus , powdery mildew , microbiology and biotechnology
A frosty mildew was observed on leaves of S alix koreensis in two localities of K orea during 2011 and 2012. The main signs and symptoms were expressed as conical white to cream coloured tufts of the causal fungus on the brown lesions, followed by premature defoliation. Based on morphological observations, cultural characteristics and phylogenetic analyses of r DNA ‐ ITS , the fungus was identified as M ycopappus alni , which has been known to be associated with frosty mildews on A lnus spp., B etula spp., C rataegus chlorosarca and P yrus pyrifolia . Pathogenicity test was conducted twice with the same results, fulfilling K och's postulates. This is the first case of S alix – M ycopappus association as well as the first report of frosty mildew on S . koreensis .