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Ophiostoma dentifundum sp. nov. from oak in Europe, characterized using molecular phylogenetic data and morphology

Published online by Cambridge University Press:  22 September 2005

Dilzara N. AGHAYEVA ,
Michael J. WINGFIELD ,
Thomas KIRISITS  and
Brenda D. WINGFIELD
Dilzara N. AGHAYEVA
Affiliation:
Forestry and Agricultural Biotechnology Institute (FABI), University of Pretoria, Pretoria, 0002 South Africa. Present address: Institute of Botany, ANAS, Patamdar sh. 40, Baku AZ1073, Republic of Azerbaijan.
Michael J. WINGFIELD
Affiliation:
Forestry and Agricultural Biotechnology Institute (FABI), University of Pretoria, Pretoria, 0002 South Africa.
Thomas KIRISITS
Affiliation:
Institute of Forest Entomology, Forest Pathology and Forest Protection (IFFF), Department of Forest and Soil Sciences, BOKU – University of Natural Resources and Applied Life Sciences, Vienna, Hasenauerstrasse 38 A-1190 Vienna, Austria.
Brenda D. WINGFIELD
Affiliation:
Department of Genetics, Forestry and Agricultural Biotechnology Institute (FABI), University of Pretoria, Pretoria, 0002 South Africa. E-mail: adilzara@hotmail.com
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Abstract

Previous phylogenetic studies based on ITS sequence data have shown that Ophiostoma species with Sporothrix anamorphs include several species complexes. Isolates from oak in Poland and Hungary, which have previously been referred to as O. stenoceras, as well as isolates morphologically similar to S. inflata formed the basis of this study. Identification was based on sequences for the ITS region of rDNA operon and partial β-tubulin gene. Analyses showed that isolates from Poland and Hungary reside in a well resolved clade, separate from those in the O. stenoceras-complex. The morphology of these isolates was compared with those of strains in the O. stenoceras complex and S. inflata. Morphological differences in teleomorph and anamorph structures were found between the isolates from Poland and Hungary and those in the O. stenoceras-complex. Growth characteristics and the presence of the teleomorph in culture could be used to separate this fungus from isolates in the S. inflata-complex. The fungus from Poland and Hungary is described here as O. dentifundum sp. nov. It is phylogenetically most closely related to isolates of S. inflata, which represent four well defined groups based on morphology and DNA sequence phylogeny.

Type
Research Article
Information
Mycological Research , Volume 109 , Issue 10 , October 2005 , pp. 1127 - 1136
Copyright
© The British Mycological Society 2005

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