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| Linnakoski, R.; Beer, Z.W. de; Rousi, M.; Solheim, H.; Wingfield, M.J.. |
| 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. |
| Tipo: Article / Letter to the editor |
Palavras-chave: Betula; Ophiostoma; Scolytus; Symbiosis. |
| Ano: 2009 |
URL: http://www.repository.naturalis.nl/record/531737 |
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| Roets, F.; Wingfield, B.D.; Beer, Z.W. de; Wingfield, M.J.; Dreyer, L.L.. |
| The genus Ophiostoma (Ophiostomatales) has a global distribution and species are best known for their association with bark beetles (Curculionidae: Scolytinae) on conifers. An unusual assemblage of these fungi is closely associated with the African endemic plant genus Protea (Proteaceae). Protea-associated Ophiostoma species are ecologically atypical as they colonise the fruiting structures of various serotinous Protea species. Seven species have been described from this niche in South Africa. It has been speculated that novel species may be present in other African countries where these host plants also occur. This view was corroborated by recent collections of two unknown species from Protea caffra trees in Zambia. In the present study we evaluate the... |
| Tipo: Article / Letter to the editor |
Palavras-chave: Β-tubulin; ITS; Ophiostoma; Phylogeny; Protea; Taxonomy. |
| Ano: 2010 |
URL: http://www.repository.naturalis.nl/record/532360 |
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