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Type: Article
Published: 2018-03-29
Page range: 93–103
Abstract views: 21
PDF downloaded: 1

Ophiostoma pehueninum, a new species associated with Araucaria araucana in Chile

Servicio Agrícola y Ganadero, Laboratorio Regional Chillán, Unidad de Fitopatología, Claudio Arrau 738, Chillán, Código Postal 3800773, Chile
Servicio Agrícola y Ganadero, Laboratorio Regional Valparaíso, Unidad de Fitopatología, Varas 120, Código Postal 2360451, Valparaíso, Chile.
Universidad de Valparaíso, Facultad de Medicina, Profesor Emérito Cátedra de Micología, Hontaneda 2653, Código Postal 2341369, Valparaíso Chile.
Conifer Ophiostoma sensu stricto taxonomy phylogenetic analysis Fungi

Abstract

During a survey of fungi on Araucaria araucana in Chile, a species of Ophiostoma morphologically different to O. araucariae was collected in the Andean region. Morphological characteristics and phylogenetic analyses of ITS, β-tubulin and EF-1α sequences confirmed that this species represents a novel taxon. This taxon is described here as Ophiostoma pehueninum sp. nov. The sexual morph of O. pehueninum was characterized by long neck and peridial hyphae around the bases, and allantoid ascospores surrounded by a gelatinous sheath. In culture a hyalorhinocladiella-like asexual morph was observed. Mating compatibility tests indicated that the species is heterothallic.