Ophiostomatoid fungi associated withIps cembrae in Japan and their pathogenicity of Japanese larch |
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| Authors: | Yuichi Yamaoka Michael J Wingfield Masashi Ohsawa Yoshio Kuroda |
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| Institution: | (1) Institute of Agriculture and Forestry, University of Tsukuba, 305-8572 Tsukuba, Ibaraki, Japan;(2) Forestry and Agricultural Biotechnology Institute (FABI), University of Pretoria, 0002 Pretoria, South Africa;(3) Yamanashi Forestry and Forest Products Research Institute, Masuhomachi, Minamikomagun, 400-0502 Yamanashi, Japan |
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| Abstract: | Six ophiostomatoid fungi, i.e.,Ceratocystiopsis minuta, Ceratocystis laricicola, Ophiostoma brunneo-ciliatum, O. laricis, O. piceae andOphiostoma sp., were isolated from the galleries ofIps cembrae on Japanese Iarch (Larix kaempferi) logs in central Honshu, Japan. Japanese larch trees approximately 30 yr old were inoculated with all six fungi.Ceratocystis laricicola produced the largest lesions on the inner bark around the inoculation point and the largest dry zone in the sapwood. Furthermore,C. laricicola was the only fungus associated withI. cembrae that had the ability to kill Japanese larch, death occurring in 30-yr-old trees within 3.5 mo after inoculation. |
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| Keywords: | Ceratocystiopsis minuta Ceratocystic laricicola inoculation experiment Ips cembrae Ophiostoma spp |
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