Fig. 1

The different stages of HY68 cultivation and fruiting, and the collection of medium substrate samples. All we collected were the cultivation substrates indicated by the arrows. a: The samples were collected during the full mycelium period in the bottle (ZJMD). b: after the mycelium was post-ripened for 60 days (ZJHS. It takes about 60 days for the fermented substrate to produce mushrooms after the mycelium of the mushroom is full, otherwise the fruiting body output is extremely low). c: the period when the hyphae kink to produce the fruiting body primordium (ZJDT). d: the period when the fruiting body cap diameter is less than 3 mm (ZJ3G. At this stage, no basidioides and basidiospores were observed after repeated microscopic observation of the gills). e: the period when the fruiting body cap diameter is greater than 7 mm. (ZJ7G. At this period, a significant number of basidioides and basidiospores were observed through repeated microscopic observation of the gills)