Mycobiology

The Korean Society of Mycology (한국균학회)
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Identification and Characterization of Cercospora malayensis Causing Leaf Spot on Kenaf

  • Park, Sung-Hee (Department of Physical Medicine and Rehabilitation, Chonbuk National University Medical School) ;
  • Choi, In-Young (Jeollabuk-do Agricultural Research and Extension Services) ;
  • Lee, Wang-Hyu (Department of Agricultural Biology, Chonbuk National University) ;
  • Lee, Kui-Jae (Division of Biotechnology, College of Environmental and Bioresource Sciences, Chonbuk National University) ;
  • Galea, Victor (School of Agriculture and Food Sciences, The University of Queensland) ;
  • Shin, Hyeon-Dong (Division of Environmental Science and Ecological Engineering, Korea University)
  • Received : 2017.04.08
  • Accepted : 2017.06.13
  • Published : 2017.06.30
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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.

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References

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