Abstract

CARRENO-RUIZ, Santa Dolores et al. Growth of three tropical edible fungi in culture mediums and agricultural waste. Rev. Mex. Cienc. Agríc [online]. 2014, vol.5, n.8, pp.1447-1458. ISSN 2007-0934.

In order to preserve and properly manipulate the strains of native edible mushrooms of Tabasco, Mexico and identify agricultural waste that can be adopted as potential substrates for fruiting, during the years 2012 and 2013 was evaluated and characterized the mycelial growth in vitro of Auricularia fuscosuccinea, Oudemansiella canarii and Schizophyllum commune, in two culture mediums: potato dextrose agar (PDA) and malt extract agar (MEA). Simultaneously, four agricultural substrates were used to evaluate mycelial growth in each waste, alone and in combination (1: 1): coir (Cocos nucifera), shells of cacao (Theobroma cacao), banana leaves (Musa paradisiaca) and sawdust from cedar (Cedrela odorata). Two incubation temperatures 26 and 30 °C were tested. A. fuscosuccinea and S. commune grew optimally in PDA at 26 °C (6.88 mm d^-1) and 30 °C (9.12 mm d ^-1), respectively; while O. canarii was favored in MEA at 26 °C (9.14 mm d^-1). Also, A. fuscosuccinea had the highest growth in banana leaves (6 mm d^-1) and O. canarii coconut fiber and cocoa shell (5.98 mm d^-1), which was statistically similar to the other substrates, except cedar sawdust. S. commune developed favourably in the coco-cacao combination (9.99 mm d^-1), with no statistical difference with the other substrates except cedar sawdust. Is reported for the first time the use of such substrates to assess the development potential of these species, representing fungal resources of vital importance for the tropics.

Keywords : Auricularia fuscosuccinea; Cedrela odorata; Cocos nucifera; Musa paradisiaca; Oudemansiella canarii; Schizophyllum commune; Theobroma cacao; agricultural waste.