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Ophiostomatoid fungi associated with the spruce bark beetle Ips typographus f. aponicus in Japan

Published online by Cambridge University Press:  01 October 1997

YUICHI YAMAOKA ,
MICHAEL J. WINGFIELD ,
IKUO TAKAHASHI  and
HALVOR SOLHEIM
YUICHI YAMAOKA
Affiliation:
Institute of Agriculture and Forestry, University of Tsukuba, Tsukuba, Ibaraki 305, Japan
MICHAEL J. WINGFIELD
Affiliation:
Department of Microbiology and Biochemistry, Faculty of Science, University of the Free State, P.O. Box 339 Bloemfontein 9300, South Africa
IKUO TAKAHASHI
Affiliation:
University Forest in Hokkaido, Faculty of Agriculture, University of Tokyo, Yamabe, Furano, Hokkaido 079-15, Japan
HALVOR SOLHEIM
Affiliation:
Norwegian Forest Research Institute, Section of Forest Ecology, Division of Forest Pathology, Høgskoleveien 12, N-1432 Ås, Norway
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Abstract

Fungi were isolated from the beetles, Ips typographus f. japonicus and Yezo spruce (Picea jezoensis) trees infested with the beetles in Hokkaido, Japan. Nine species of ophiostomatoid fungi including one new species were identified. They were Ceratocystiopsis minuta, Ceratocystis polonica, Ophiostoma ainoae, O. bicolor, O. cucullatum, O. europhioides, O. penicillatum, O. piceae, and a new species described here as O. japonicum. Based on frequencies of occurrence, O. ainoae, O. bicolor, O. penicillatum, and O. piceae were regarded as dominant associates of I. typographus japonicus, and C. minuta, C. polonica, O. europhinoides, and O. japonicum were subdominant. The species of ophiostomatoid fungi associated with I. typographus japonicus in Japan are almost identical to those associated with I. typographus infesting Norway spruce (P. abies) in Europe. This study improves our knowledge of the biogeography of the ophiostomatoid fungi and the insects with which they are associated.

Type
Research Article
Information
Mycological Research , Volume 101 , Issue 10 , October 1997 , pp. 1215 - 1227
Copyright
The British Mycological Society 1997

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