玉米秸秆降解菌的筛选

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英文篇名：Screening of degrading strains of corn stalk 作者：李江燕 ; 王俊飞 ; 王云立 英文作者：LI Jiangyan;WANG Junfei;WANG Yunli;Tianjin Recyclable Resources Institute, All China Federation of Supply and Marketing Cooperatives; 关键词：玉米秸秆 ; 秸秆降解菌 ; 纤维素酶活力 ; 秸秆降解率 英文关键词：corn stalk;;the degrading strains of stalk;;the cellulase activity;;the degradation rate 中文刊名：ZSZY 英文刊名：Recyclable Resources and Circular Economy 机构：中华全国供销合作总社天津再生资源研究所; 出版日期：2018-11-27 出版单位：再生资源与循环经济 年：2018 期：v.11;No.131 语种：中文; 页：ZSZY201811015 页数：3 CN：11 ISSN：12-1397/X 分类号：37-39

摘要

玉米秸秆中纤维素含量丰富,具有较高的利用价值。但玉米秸秆存在降解困难的问题,筛选高效的玉米秸秆降解菌成为解决该问题的关键。通过富集培养、刚果红纤维素平板初筛和纤维素酶活力测定复筛的方法,从农田土壤中分离筛选出纤维素降解菌6株,其中菌株编号为L-4的秸秆降解菌的纤维素酶活力最高,为23.59 U/g,28℃条件下玉米秸秆15 d的降解率为23.32%。
        Corn stover is rich in cellulose and has high utilization value. But the corn stalks are difficult to be degradated and screened efficiently. The corn stover degradation strains is the key to solving this problem. In this paper,6 strains of cellulose-degrading were isolated and screened from farmland soil by enrichment culture. With the congo red cellulose plate primary screening and cellulase activity re-screening methods, the 6 fibre-degrading bacteria were screened from the soil, and the straw-degrading strain with strain No. L-4 of the cellulase activity was the highest,which was 23.59 U/g, and the degradation rate of corn stalk for 15 days at 28℃ was 23.32%.

引文

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