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Boletín de la Sociedad Argentina de Botánica
On-line version ISSN 1851-2372
Abstract
TOLEDO, Carolina Verónica and BARROETAVENA, Carolina. Crecimiento miceliar de especies silvestres de hongos comestibles de los bosques andino-patagónicos: primeros pasos para su domesticación. Bol. Soc. Argent. Bot. [online]. 2017, vol.52, n.3, pp.435-446. ISSN 1851-2372.
Nothofagus spp. forests from Patagonia Argentina host fungi with organoleptic and nutritional characteristics that make them attractive for consumption and plausible to be cultivated on different organic substrates. The optimum parameters of vegetative growth of seven potentially cultivable species of edible wild mushrooms in these forests (Aleurodiscus vitellinus, Fistulina antarctica, F. endoxantha, Grifola gargal, Lepista nuda, Lycoperdon perlatum and Macrolepiota afín procera) were evaluated. Five strains of each of the fungal species were obtained, and three assays were performed: 1) determining the optimum temperature for mycelia growth, 2) assessment of miceliar growth on different culture media and characterization of the strains, and 3) assessment of myceliar growth in grains. The optimum growth temperature was generally 25 °C, although with varying ranges. The culture media more rapidly colonized was Potato Dextrose Agar. Lepista nuda and A. vitellinus showed the highest rates of average myceliar growth both in culture media and in grains. Strains of A. vitellinus, F. endoxantha and L. perlatum showed greater heterogeneity in the rate of growth in plates, while strains of F. antarctica, G. gargal and M. afín procera showed a more homogeneous behavior.
Keywords : Primary inoculum; Domestication; Growth temperature; Growth in different media.