the second-class liquid isolates of G. frondosa grow better on potato-glucose-peptone liquid medium with more mycelia, hyphae on the 10 th day are full of cultural liquor.

• 灰树花液体菌种栽培的结果表明：一级试管斜面菌种，灰树花在马铃薯综合培养基上生长良好，菌丝粗壮；