Persoonia (2009) 23, 9-15

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R. Linnakoski, Z.W. de Beer, M. Rousi, H. Solheim and M.J. Wingfield (2009)
Ophiostoma denticiliatum sp. nov. and other Ophiostoma species associated with the birch bark beetle in southern Norway
Persoonia 23, 9-15
Abstract: Ophiostomatoid fungi were isolated from Scolytus ratzeburgi infesting Betula pendula and B. pubescens in Norway. Fungi were identified based on morphology, DNA sequence comparison for two gene regions and phylogenetic analyses. The most abundant fungus was Ophiostoma karelicum, suggesting a specific relationship between the fungus, the vector insect and the host tree. Our results suggest that O. karelicum occurs across the geographic range of S. ratzeburgi and its close relatedness to the Dutch elm disease fungi suggests that it could be important if introduced into other parts of the world. Other fungi, only occasionally isolated from S. ratzeburgi, were identified as O. quercus and a novel taxon, described here as O. denticiliatum sp. nov.
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Full text of article
Database assignments for author(s): Riikka Linnakoski, Michael J. Wingfield, Z. Wilhelm de Beer

Research topic(s) for pests/diseases/weeds:
transmission/dispersal of plant diseases

Pest and/or beneficial records:

Beneficial Pest/Disease/Weed Crop/Product Country Quarant.

Ophiostoma quercus Norway
Scolytus ratzeburgi Birch (Betula) Norway
Ophiostoma karelicum Birch (Betula) Norway
Ophiostoma denticiliatum Norway