潘迎捷; 汪昭月; 馮志勇; 倪新江; 李人圭
上海市農業科學院食用菌研究所; 上海市農業科學院食用菌研究所; 上海市農業科學院食用菌研究所; 華東師范大學生物系; 華東師范大學生物系 上海 201106 ; 上海 201106 ; 上海 201106 ; 上海 200062 ; 上海 200062

【中文摘要】 F_1和F_5兩個雜交種的絕對生物學效率均高于兩個親本,超出幅度為29%～52%;在基物失重與呼吸消耗中,兩個雜交種基本相同,處于兩個親本之間,并表現出兩個性狀均接近于雙親中最優親本的趨勢;在纖維素、半纖維素和木質素降解能力中,兩個雜交種表現出雙親互補的特征;在營養生長階段,兩個雜交種利用培養基中非木質纖維素的趨勢較強;在生殖生長階段,則具有比親本更強的利用培養基中木質纖維素的能力,筆者提出把有效生物轉化率作為衡量香菇雜種優勢的一個生理指標。

【英文摘要】 The absolute biological efficiencies (ABE) of the hybrid strains, F1 and F5, are higher than that of their parents, ranging from 29% to 52%. In general, the reduction of dry weight of substrate (DWS) and consumption of respiration (CR) of F1 and F5 are almost the same, ranging between that of two parents, and express the tendency of approaching that of the better one of their parents. In comparison, F1 and F5 expressed complementary characteristics from their parents on activities of degrading the cellulose, hemicellulose and lignin in sawdust substrate. The nonlignocellulose utilization trend of F1 and F5 is stronger at mycelial growth stage. And F1 and F5 have higher activites of decomposing and utilizing lignocellulose than their parents at fruiting stage. Based on these results, the effective biotransforming rate (EBR), as one of the physiological indicator to evaluate the heterotic vigor of Lentinus edodes, is put forward in this study.

【中文關鍵詞】 雜種優勢; 生理途徑; 香菇
【英文關鍵詞】 Hetcrotic vigor; Physiological way; Lentinus edodes

【文獻出處】 食用菌學報,Acta Edulis Fungi,編輯部郵箱,1994年01期 【DOI】CNKI:SUN:SYJB.0.1994-01-002