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Two new species of Botryosphaeria with brown, 1-septate ascospores and Dothiorella anamorphs

     Centro de Recursos Microbiológicos, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, Quinta da Torre, 2829-516 Caparica, Portugal

Artur Alves
António Correia

     Centro de Biologia Celular, Departamento de Biologia, Universidade de Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal

Jordi Luque

     Departament de Protecció Vegetal, Institut de Recerca i Tecnologia Agroalimentàries, Centre de Cabrils, Ctra. de Cabrils s.n., E-08348 Cabrils, Barcelona, Spain

Botryosphaeria sarmentorum sp. nov. and B. iberica sp. nov. are described and illustrated. These two species are unusual in this genus because of their brown, 1-septate ascospores. Phylogenetic analysis based on ITS and EF1- sequences place them within the clade containing species with Fusicoccum anamorphs. The brown, 1-septate conidia, however, do not conform to Fusicoccum. Therefore phylogenetically and morphologically the anamorphs of these two species belong in a genus distinct from any of the currently accepted anamorph genera assigned to Botryosphaeria. Through a study of the type species of Dothiorella this genus is resurrected to accommodate anamorphs of Botryosphaeria with brown, 1-septate conidia. Botryosphaeria sarmentorum is shown to be the teleomorph of Diplodia sarmentorum, which in turn is transferred to Dothiorella. Otthia quercus is transferred to Botryosphaeria as B. quercicola nom. nov.

Key words: Botryosphaeriaceae, Diplodia, Fusicoccum, ITS, molecular phylogenetics, Otthia, translation elongation factor EF1-

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