Cylindrocladium brown leaf spot on Howea belmoreana caused by Calonectria ilicicola (anamorph: Cylindrocladium parasiticum) in Japan |
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| Authors: | Yuuri Hirooka Jun Takeuchi Hiromichi Horie Keiko T. Natsuaki |
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| Affiliation: | (1) Department of International Agricultural Development, Tokyo University of Agriculture, 1-1-1 Sakuragaoka, Setagaya-ku, Tokyo 156-8502, Japan;(2) Tokyo Metropolitan Agricultural and Forestry Research Center, 3-8-1 Fuzimi, Tachikawa, Tokyo 190-0013, Japan;(3) Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Yayoi Bunkyo-ku, Tokyo 113-8657, Japan;(4) Microorganisms Section of NIAS Genebank, National Institute of Agrobiological Sciences, 2-1-2 Kannondai, Tsukuba Ibaraki, 305-8602, Japan |
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| Abstract: | Brown leaf spot disease caused by Cylindrocladium was found on Howea belmoreana on Hachijojima Island, Tokyo, Japan, in December 2001. Typical symptoms were incited after artificial inoculation. A culture of white mycelia, isolated from leaf spot symptoms, produced reddish perithecia of a nectriaceous fungus. Based on morphological and molecular analyses, this fungus was identified as Calonectria ilicicola (anamorph: Cylindrocladium parasiticum). Pathogenicity of this fungus on five plants cultivated on Hachijojima Island was confirmed by artificial inoculation. This report is the first on Cylindrocladium brown leaf spot of H. belmoreana caused by C. ilicicola (anamorph: Cy. parasiticum). |
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| Keywords: | Cylindrocladium brown leaf spot Calonectria ilicicola Cylindrocladium parasiticum Howea belmoreana New disease |
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