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KMID : 1160220170450020114
Mycobiology
2017 Volume.45 No. 2 p.114 ~ p.118
Identification and Characterization of Cercospora malayensis Causing Leaf Spot on Kenaf
Park Sung-Hee

Choi In-Young
Lee Wang-Hyu
Lee Kui-Jae
Galea Victor
Shin Hyeon-Dong
Abstract
In September 2013 and 2014, a significant number of kenaf plants showing symptoms of leaf spots with approximately 50% incidence were found in experimental plots in Iksan and Namwon, Korea. Leaf spots were circular to irregular, more or less vein-limited, reaching to 10 mm in diameter. The spots were initially uniformly brown to reddish brown, turning pale brown with a purplish margin and showing grayish patches on the lesion due to heavy fructification. The causative agent of the leaf spot disease was identified as Cercospora malayensis. The pathogenicity test was conducted with similar results, which fulfilled Koch¡¯s postulates. This is the first report of C. malayensis infection of kenaf in Korea.
KEYWORD
Cercospora malayensis, Hibiscus cannabinus, Kenaf, Leaf spot, Multigene phylogenetic analysis
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