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Morphological, molecular and ecological aspects of the South American hypogeous fungus Alpova austroalnicola sp. nov.

     Instituto Multidisciplinario de Biología Vegetal (CONICET), C.C. 495, 5000, Córdoba, Argentina

James M. Trappe

     Department of Forest Science, Oregon State University, Corvallis, Oregon 97331-5752

Field studies in Argentina’s Yunga District revealed Alpova austroalnicola sp. nov., a hypogeous fungus associated with Alnus acuminata ssp. acuminata. Morphological and molecular studies based on amplification and sequencing of the nuclear LSU rDNA gene showed its unique identity within Alpova. Related genera included in the analyses were Boletus edulis, Rhizopogon spp., Suillus luteus and Truncocolumella citrina. Additional observations of animal diggings around the sites and microscopic examination of fecal pellets of the nine-banded armadillo (Dasypus novemcinctus novemcinctus) indicate A. austroalnicola is consumed and its spores dispersed by animals.

Key words: Alnus acuminata, Boletales, Dasypus, molecular systematics, mycophagy, phylogeny

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