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Seed-borne Botryosphaeria spp. from native Prunus and Podocarpus trees in Ethiopia, with a description of the anamorph Diplodia rosulata sp. nov.

Published online by Cambridge University Press:  17 August 2005

Abdella GURE ,
Bernard SLIPPERS  and
Jan STENLID
Abdella GURE
Affiliation:
Department of Forest Mycology & Pathology, Swedish University of Agricultural Sciences (SLU), Box 7026 SE-750 07 Uppsala, Sweden. E-mail: [email protected] Wondo Genet College of Forestry, Debub University, P.O. Box 128, Shashamane, Ethiopia.
Bernard SLIPPERS
Affiliation:
Department of Forest Mycology & Pathology, Swedish University of Agricultural Sciences (SLU), Box 7026 SE-750 07 Uppsala, Sweden. E-mail: [email protected]
Jan STENLID
Affiliation:
Department of Forest Mycology & Pathology, Swedish University of Agricultural Sciences (SLU), Box 7026 SE-750 07 Uppsala, Sweden. E-mail: [email protected]
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Abstract

Botryosphaeria spp. from seeds of the native afromontane forest tree species, Podocarpus falcatus and Prunus africana, in Ethiopia have been identified. This is achieved by combining anamorph morphological characters and ITS sequence data. From a relatively small sample, four Botryosphaeria spp. were encountered. Two of the species from P. falcatus and the one from P. africana have not been previously described. The two species from P. falcatus were represented by only one isolate each and are not named here. The morphology of their Diplodia and Dothiorella anamorphs is, however, characterised. The anamorph of the other Botryosphaeria sp. from P. africana is described here as Diplodia rosulata sp. nov. Furthermore, B. parva is identified from P. falcatus based on ITS phylogeny. This species is also an important pathogen of various commercially important tree species in Ethiopia and elsewhere. This study highlights the ability of Botryosphaeria spp. to infect seeds and the possibility that they might be distributed in this way. The study also contributes to recent attempts to stabilize the taxonomy of Botryosphaeria anamorphs, especially regarding Diplodia, which is currently in taxonomic disarray.

Type
Research Article
Information
Mycological Research , Volume 109 , Issue 9 , September 2005 , pp. 1005 - 1014
Copyright
© The British Mycological Society 2005

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