郭倩; 何慶邦
農業部食用菌遺傳育種重點開放實驗室; 西南農業大學園藝系 上海市農業科學院食用菌研究所 上海 201106 ; 重慶 630716

【中文摘要】 本文研究了四孢蘑菇菌株JN-1和JN-2在菌絲生長和子實體發育階段胞外羧甲基纖維素酶、濾紙酶、淀粉酶和多酚氧化酶活性以及基質中纖維素、半纖維素和木質素降解的動態變化規律。結果表明,羧甲基纖維素酶和濾紙酶的活性峰值出現在子實體成熟期,而低谷出現在子實體采收間期,營養生長階段酶活性水平較低。基質中以纖維素的變化最為明顯,纖維素的降解和纖維素酶活性與子實體發育之間可能存在調控關系。

【英文摘要】 The dynamic variation law of CMCase, FPase, amylase and polyphenol oxydase activity and the degradation of cellulose, hemicellulose and lignin during the growth period of Agaricus bitorquis JN - 1 and JN - 2 was investigated in this study. It was proved that the CMCase and FPase activity peaks of A. bitorquis appeared coincidentally with the mature period of the fruitbody, while their lowest activity appeared between two flushes of the fruitbody, and lower activity appeared during the vegetative growth period of the mycelia, that the cellulose variation rate in the media was the highest, and that some regulating mechanism might exist among the degradation of cellulase, the cellulose activity and the development of the fruitbody.

【中文關鍵詞】 四孢蘑菇; 纖維素酶; 纖維素
【英文關鍵詞】 Agaricus bilorquis ; Cellulase; Cellulose

【文獻出處】 食用菌學報,Acta Edulis Fungi,編輯部郵箱,1998年02期 【DOI】CNKI:SUN:SYJB.0.1998-02-002