Cultural and morphological characteristics of the species of Pholiota (Strophariaceae, Basidiomycota) on agar nutrient media

Abstract

The article provides cultural and morphological characteristics of vegetative mycelium on agar nutrient media of eight species (18 strains) of the genus Pholiota from the IBK Mushroom Culture Collection of the M.G. Kholodny Institute of Botany, National Academy of Sciences of Ukraine. The strains were cultivated on two different media, malt extract agar (MEA) and glucose-peptone-yeast agar (GPYA), at pH 6.0 and at the temperature 26±1 ºC. It has been shown that cultural characteristics of the colony morphology and the rate of radial growth depend on nutrient media composition and biological properties of the strains. Most strains formed white colonies, later becoming light yellow or from orange to dark brown. Some of the species were able to form strands and allocate exudates. A slow rate of radial growth (up 0.52±0.08 to 2.24±0.18 mm/day) for all strains of the studied Pholiota species was noticed. The highest rate of radial growth for most of the studied strains was observed on glucose-peptone-yeast agar.

Keywords

• growth rate
• morphology
• nutrient agar media
• vegetative mycelium
• pholiota