黑木耳菌丝老化过程中胞外酶变化规律分析

Analysis on Changes Rules of Extracellular Enzymes in Auricularia auricula Mycelium During Senescence

目前关于黑木耳菌丝退化的机制尚不清楚,试验通过测定黑木耳老化过程中胞外酶活力的变化进行探究。结果表明,随着老化处理时间的不断延长,滤纸酶、半纤维素酶、纤维素酶、漆酶、果胶酶、淀粉酶、总蛋白酶的活力均呈下降趋势,纤维二糖酶活力呈先上升后下降的趋势,各胞外酶之间存在不同程度的相关性。研究结果对于进一步探究黑木耳菌丝老化生理及机理有重要的意义。

At present,the degradation mechanism of Auricularia auricula mycelium is still unclear,the test measuring the changes of extracellular enzymes during the aging process of A.auricula to explore the mechanism.The results showed that the activities of filter paper enzyme,hemicellulase,cellulase,laccase,pectinase,amylase and total proteinase all showed a downward trend with the aging treatment time extending,while the activities of cellobiase showed a trend of rising first and then declining.And there was a different degree of correlation between the extracellular enzymes.The results have important significance for further exploring the aging physiology and mechanism of A.auricula mycelium.