吴学谦; 汪奎宏; 朱光权; 王伟平; 苏庆亮
浙江省林业科学研究院; 浙江省林业科学研究院; 浙江省林业科学研究院; 丽水市食用菌研究开发中心; 丽水市食用菌研究开发中心 杭州310023 ; 杭州310023 ; 杭州310023 ; 丽水323000 ; 丽水323000

【中文摘要】 为降低香菇栽培对阔叶树资源的消耗 ,本文研究了不同栽培基质配方原始组分含量、呼吸消耗、基质失重对绝对生物学效率的影响及不同生育阶段木质纤维素的生物降解规律。结果表明 ,经优化配比的节木栽培基质 ,发菌阶段呼吸消耗失重率为 16 4 4 %～ 17 12 % ,出菇阶段木质素降解率为 73 83%～ 78 2 4 % ,整个生育过程木质纤维素降解率为 78 0 9%～ 79 77% ,绝对生物学效率为 10 2 2 %～ 11 4 1% ;节木栽培基质木质素的降解主要发生在出菇阶段 ,其降解率越高 ,绝对生物学效率越高 ,但木质素的降解率并不随木质素含量的升高而提高 ;木质素的降解尚需外源较易利用的碳源启动

【英文摘要】 In order to reduce broad-leaf tree resource consumption in shiitake culture substrate,we have adopteddifferent culture substrates for a study of the influence to absolute biological efficiency by original composition content,respiration consumption and weight loss of substrate and bio-degeneration law of lignocellulose during different growing stages.Result indicates that for the optionally matched sawdust-saving substrate,its weight loss ratio because of respiration consumption in spawn growing stage is 16 44%～17 12%,lignin degeneration ratio in mushroom growing stage is 73 83%～78 24%,lignocellulose degeneration ratio during the whole growing process is 78 09%～79 77%,absolute biological efficiency is 10 22%～11 41%,lignin in sawdust-saving culture substrate mainly degenerates in mushroom growing stage;The higher the degeneration ratio,the higher its absolute biological efficiency.However,lignin degeneration ratio does not go up with more lignin content.Lignin degeneration needs to be i...更多nitiated with an easily accessible out-side carbon source. 还原

【中文关键词】 香菇; 木质纤维素; 生物降解; 绝对生物学效率
【英文关键词】 Shiitake; Lignocellulose; Bio-degeneration; Absolute biological efficiency
【基金】浙江省"九五"重大攻关项目 (No .99110 2 319)

【文献出处】 中国食用菌,Edible Fungi of China,编辑部邮箱,2002年04期 【DOI】CNKI:SUN:ZSYJ.0.2002-04-006