THE STUDY OF THE OAK-WOOD FONGICA (QUERCUS SP) - FLORE DURING ITS NATURAL AIR-DRYING FOR THE COOPERAGE

After purification by sub-culturing of each morphologically different colony, only the mushroms present in all samples were identified as be ing characteristic to natural air-drying of oak-wood. Five species wer e kept: Aureobasidium pullulans, Trichoderma harzianum, Trichoderma ko ningii, Rhyzopus stolonifer and an unidentified species, coded as ECLR 2-91. More than 80% of the total population was A. pullulans, Trichode rma sp. at 10 to 20% and the other species at less than 10%. Mushrooms isolated on ''merrains'' have a complete vegetative cycle, wich sugge st that they find all the favorable conditions on wood for their growt h. Mushrooms distributed over the surface, as well as in the first mil limeters of wood, discharge enzymes into environnement. Primarily, the se are heterosidases.