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KMID : 0379120190470030271
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Korean Journal of Mycology
2019 Volume.47 No. 3 p.271 ~ p.274
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Grovesinia moricola occurring on Parthenocissus tricuspidata
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Shin Hyeon-Dong
Choi Young-Joon
Hong Sun-Hee
Lee Yong-Ho
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Abstract
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Between August and September 2017, zonate leaf spots with severe defoliation were observed on Parthenocissus tricuspidata in Gimcheon, Korea. The initial symptoms included water-soaked, gray to grayish brown, circular or irregular-shaped leaf spots. As the disease progressed, the spots enlarged, coalesced, and became cream-colored with characteristic target-shaped rings, leading to leaf blight and premature defoliation. Based on cultural and morphological characteristics, the fungus associated with the symptoms was identified as Grovesinia moricola. The identity of this fungus was confirmed by analyzing sequences of the internal transcribed spacer region of ribosomal DNA. The pathogenicity of the isolate was demonstrated by artificial inoculation. To our knowledge, this is the first report of G. moricola occurring on P. tricuspidata globally as well as in Korea.
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KEYWORD
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Boston ivy, Cristulariella moricola, Grovesinia moricola, Internal transcribed spacer rDNA
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