Ophiostoma species, including Ophiostoma borealis sp. nov., infecting wounds of native broad-leaved trees in Norway

dc.contributor.authorNkuekam, Gilbert Kamgan
dc.contributor.authorSolheim, Halvor
dc.contributor.authorDe Beer, Z. Wilhelm
dc.contributor.authorGrobbelaar, J.W. (Johanna Wilhelmina)
dc.contributor.authorJacobs, Karin
dc.contributor.authorWingfield, Michael J.
dc.contributor.authorRoux, Jolanda
dc.date.accessioned2011-05-06T06:05:38Z
dc.date.available2011-05-06T06:05:38Z
dc.date.issued2010-09
dc.description.abstractOphiostoma spp. include important pathogens of trees and causal agents of sapstain. These fungi infect wounds on trees and are typically carried by insects, especially bark beetles. Ophiostoma spp. on coniferous hosts in the Northern Hemisphere are well known. However, other than for the serious pathogens O. ulmi and O. novo-ulmi, very little research has been done on the occurrence of this group of fungi on native broad-leaved trees, especially in the Nordic countries. In this study, surveys were conducted in several areas of Norway to isolate Ophiostoma spp. associated with wounds on native broad-leaved trees belonging to the genera Betula, Fagus, Quercus, Sorbus and Tilia. Morphological studies and comparisons of DNA sequences for the ITS, S.8S and part of the beta-tubulin gene regions were used to confirm the identity of the fungi collected. Ophiostoma spp., and especially their Pesotum anamorphs, were common on wounds on the trees sampled. In most cases, they were associated with wood stain. Ophiostoma spp. collected included predominantly O. quercus, O. borealis sp. nov., and O. denticiliatum. The results of this study emphasize that the diversity of Ophiostoma spp. on broad-leaved trees is still incompletely understood in Norway and other European countries.en
dc.description.sponsorshipDepartment of Science and Technology (DST), Centre of Excellence in Tree Health Biotechnology (CTHB), National Research Foundation of South Africa (NRF), THRIP Initiative of the Department of Trade and Industry (THRIPIDST), Norwegian Research Council (NFR), Norwegian Forest and Landscape Institute (NFU), members of the Tree Protection Co-operative Programme (TPCP), University of Pretoria (UP).en_US
dc.identifier.citationNkuekam, GK, Solheim, H, De Beer, ZW, Grobbelaar, JW, Jacobs, K, Wingfield, MJ & Roux, J 2010, 'Ophiostoma species, including Ophiostoma borealis sp. nov., infecting wounds of native broad-leaved trees in Norway', Cryptogamie Mycologie, vol. 31, no. 3, pp. 285-303. [http://www.cryptogamie.com]en
dc.identifier.issn0181-1584
dc.identifier.urihttp://hdl.handle.net/2263/16486
dc.language.isoenen_US
dc.publisherAssociations des Amis des Cryptogames, Elsevieren_US
dc.rights© 2010 Adac.en_US
dc.subjectBroad-leaved treesen
dc.subjectOphiostoma borealis sp. nov.en
dc.subjectSapstainen
dc.subject.lcshHardwoods -- Diseases and pests -- Norwayen
dc.subject.lcshOphiostomataceae -- Norwayen
dc.subject.lcshBlue stain -- Norwayen
dc.subject.lcshTrees -- Wounds and injuries -- Norwayen
dc.titleOphiostoma species, including Ophiostoma borealis sp. nov., infecting wounds of native broad-leaved trees in Norwayen
dc.typePostprint Articleen

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