IMBIV   05474
INSTITUTO MULTIDISCIPLINARIO DE BIOLOGIA VEGETAL
Unidad Ejecutora - UE
congresos y reuniones científicas
Título:
MORPHOLOGICAL STUDY OF SPOROCARPIC GLOMEROMYCOTINA SPECIES FROM PATAGONIAN NOTHOFAGACEAE FORESTS (ARGENTINA-CHILE).
Autor/es:
COFRE, N. SMITH M. E. DOMINGUEZ, LS
Lugar:
Valdivia
Reunión:
Workshop; International workshop "Mycorrhizal symbiosis in the southern cone of South America", Universidad Austral de Chile; 2017
Institución organizadora:
Universidad austral de chile
Resumen:
Fungi are an important component of temperate forest soil communities. Arbuscular mycorrhizal fungi (AMF) that form hypogeous sporocarps have been studied primarily in the Northern Hemisphere and very little is known about the diversity of these fungi in the Southern Hemisphere. Although the Nothofagaceae forests of Patagonia in Argentina and Chile tend to be dominated by ectomycorrhizal fungi, there is evidence that Nothofagaceae also form arbuscular mycorrhizal associations as well. During recent expeditions to collect fungi associated with Nothofagaceae trees in Argentina and Chile, we encountered several morphologically distinct species of sporocarpic Glomeromycotina. Here we examine and morphologically describe several rare, sporocarpic species that do not match the descriptions of any known species and are apparently new to science. All these fungi produce glomoid spores are have been found only one time. Only one sporocarpic species of Glomeromycotina, Glomus fuegiana (Speg.) Gerdem. & Trappe has been previously documented from Nothofagaceae forests in Argentina and Chile. This study provides preliminary data on three additional new species, suggesting that the diversity of this group of fungi is likely much higher than previously thought in southern South America.Key words: arbuscular mycorrhizal fungi, glomoid spores, morphology