周长青; 王秀峰; 李玉
山东农业大学园艺科学与工程学院; 吉林农业大学
【中文摘要】 以天山二号白灵菇为试材,棉籽壳为栽培料研究了白灵菇在生长发育过程中对碳源的降解利用规律。结果表明,白灵菇在整个生长期内以降解木质纤维素为主,生殖生长阶段更是以木质纤维素为主要碳源,非木质纤维素主要在菌丝生长和菌丝后熟阶段被利用。在整个生长期内,纤维素降解40.24%、半纤维素降解32.06%、木质素降解34.61%、木质纤维素总降解35.52%。木质纤维素的降解速率和降解量具有明显的阶段性:降解速率在菌丝生长和后熟阶段较低,生殖生长阶段明显加快。在不同生长阶段木质纤维素的各成分被优先利用的次序存在差异,前35d优先利用木质素,且纤维素、半纤维素、木质素三者平衡利用,后熟期间优先利用纤维素,原基分化期优先利用半纤维素,子实体生长阶段主要利用纤维素。
【英文摘要】 Pleurotus nebrodensis ‘Tianshan 2’ was subjected to studied the law of degradation and use of carbon source in the whole growth and development period by cultured on the cottonseed shell medium. The results showed that in the whole growth and development period, the bastose was degraded by P.nebrodensis and it was used as the chief carbon source at the reproduction stage. Nonlignin was principally used at hyphal growing and hyphal postripening. Our experiments suggested that cellulose, hemicellulose, lignin and bastose were degraded by 40.24%, 32.06%, 34.61% and 35.52% at the whole growth and development period. The degradation of bastose was found to be evidently periodic, the degradation rate was lower at hyphal growing and hyphal postoripening, but clearly quicke at reproductive stage. There are difference in order of bastose members to be preferentially used at different stages. On the first 35 days, lignin got priority in use by the cultured fungus; cellulose was used at postripen...更多ing, hemicellulose at primordium differentiation, cellulose was chiefly used again at carpophore growing. 还原
【中文关键词】 白灵菇; 袋料栽培; 碳源代谢; 木质纤维素
【英文关键词】 Pleurotus nebrodensis; Bagging culture; Carbon source metabolize; Bastose
【文献出处】 中国食用菌,Edible Fungi of China,编辑部邮箱,2009年01期 【DOI】CNKI:SUN:ZSYJ.0.2009-01-016
