平菇是高等担子菌中种类较多的一个属,其中能行人工栽培的可食种类至少在15种以上。平菇子实体的形态,不仅在种类之间彼此存在着差异,而且在每一菇体的发育过程中,也会表现出不同的特征,在适宜条件下,子实体发育要经历原基期(菌蕾期)、分化期(成形期)、幼菇期(初熟期)、采收期(成熟期)和老死期(衰萎期)五个阶段。原基的发生标志平菇的生活史由菌丝体生长转入子实体发育阶段,而了解和掌握原基的形态特征及其管理技术,对指导生产是非常重要的。(一)原基的形态特征平菇菌丝体生长繁殖至生理成熟后,在内外因子的共同作用下(特别是环境温度),于其着生的基物表面 Pleurotus ostreatus is a genus of higher basidiomycetes, of which at least 15 are edible cultivars that can be cultivated artificially. Pleurotus ostreatus morphology, not only in the different species exist between each other, but also in the development of each mushroom body will show different characteristics, under appropriate conditions, the development of fruiting bodies to go through the original base Bud stage), differentiation stage (forming stage), young mushroom stage (first maturity), harvest (maturity) and old age (recession). Occurrence of primordia The life history of Pleurotus ostreatus transforms from the mycelium growth to the fruiting body development stage. It is very important to understand and grasp the morphological characteristics and management techniques of the primordium. (A) the morphological characteristics of the original base Pleurotus ostreatus mycelium growth and reproduction to physiological maturity, under the combined effect of internal and external factors (especially ambient temperature), its biological substrate surface