Cocultivation of Pleurotus ostreatus (Jacq.) P. Kumm. with yeasts

Cocultivation of Pleurotus ostreatus with eight yeast species were investigated on water agar. Special mycelial structures contacting with yeast cells were found in such cultures: nipple-like appendages and coralioid hyphae. Three out of eight species, Hanseniaspora uvarum, Rhodotorula minuta, and Saccharomyces cerevisiae were identified as trophic preferendum for P. ostreatus. These three yeast species were used for mushroom cultivation on sunflower seed peel. The biomass of fruiting bodies increased by 52.8–75.7% with the H. uvarum and S. cerevisiae suspension presence in the substrate.