刺芹侧耳菌糠及其提取液对糙皮侧耳生长的影响

Effect of Pleurotus eryngii Spent Mushroom Substrate on the Mycelial Growth and Fruiting of Pleurotus ostreatus

分别用刺芹侧耳(Pleurotus eryngii)菌糠提取液替代PDA培养基中马铃薯煮汁和刺芹侧耳菌糠替代常规培养料中的玉米芯,考察菌糠对糙皮侧耳(P.ostreatus)菌丝生长及子实体产量的影响。结果表明,随着菌糠提取液替代比例的增加,菌丝生长速度有减慢的趋势,当替代比例为100%时,菌丝生长速度显著低于对照。然而,随着菌糠替代玉米芯比例的增加,菌丝长速加快,且第一茬菇产量增加。当替代比例为26%和39%时,糙皮侧耳的生物学效率显著高于对照,分别比对照高9.2%和11.4%。

Extracts of spent mushroom substrate（SMS） from Pleurotus eryngii cultivation and the SMS itself were used respectively to replace the potato in potato dextrose agar（PDA） medium for growing mycelia cultures and the corn cob component of substrate used to cultivate P.ostreatus fruit bodies.P.ostreatus mycelium grew more slowly on PDA plates as the potato component was increasingly replaced with SMS extract,and the growth rate was significantly lower compared with controls without added SMS extract when the potato component was totally replaced.However,mycelia growth was more rapid,and the yield of fruit bodies from the first flush was higher,when increasing amounts of SMS replaced the corn cob component of the cultivation substrate.Biological efficiencies were significantly higher（9.2% and 11.4% compared with controls） at SMS replacement levels of 26% and 39%,respectively.