首页|缙云山马尾松林地土壤真菌的纤维素酶活性研究

缙云山马尾松林地土壤真菌的纤维素酶活性研究

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在重庆市缙云山马尾松林地里按海拔及坡向设置了6个样地,检测分析了土壤中的纤维素分解菌数量和纤维素酶活性.结果表明:海拔高低显著影响马尾松林地的纤维素分解菌数量及纤维素酶活性.海拔越低纤维素分解菌数量越高,低海拔下的土壤纤维素分解菌数量是高、中两个海拔下的38和8.6倍,坡向对纤维素分解菌数量无显著影响;而Cx酶活性与滤纸酶活性则是在中海拔时最高,且3种海拔下都是阴坡高于阳坡;6个样地的滤纸酶活性均在6天时最高,但Cx酶活性最高的培养时间因海拔和坡向而异.
Cellulaseactivities of Fungi in Forest Soil under Different Pinusmassoniana Lamb Stands in Jinyun Mountain
In order to detect and analyze the number of cellulose degradation fungi and its celluase activities,6 sample plots were set in masson pine forest according to both altitude and slope aspect in Jinyun Mountain in Chongqing.Results showed that number of cellulose degradation fungi and its celluase activities were affected significantly by the factor altitude;the factor slope aspect also influenced the activities of CMCase and FPA while it did not have the same effect on the number of cellulose degradation fungi.The higher the altitude of the sample plot was in,the more fungi it had,and the number of fungi in the lowest altitude was 38 times and 8.6 times than those of fungi in the highest altitude and the middle altitude,respectively.The highest activity of both CMCase and FPA appeared in the middle altitude and sunny slope.The highest activities of FPA from 6 sample plots were all discovered in the sixth day during the culture process,while those of CMCase did not come out in the same day,some in the fifth day,some in the sixth day,others may be in the seventh day,varied with different altitudes and slope aspects.

Cellulase activityCellulose degradation fungusPinusmassoniana lambJinyun mountain

毛文韬、吴雪莲、辜夕容、姚永红

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西南大学资源环境学院,重庆400716

重庆市农业科学院,重庆401329

纤维素酶 纤维素分解菌 马尾松 缙云山

林业公益性行业科研专项重庆市应用开发计划项目西南大学资源环境学院本科生科技创新“光炯”培育项目

201004033cstc2013yykfA8001420110204

2015

西南农业学报
四川,云南,贵州,广西,西藏及重庆省(区,市)农科院

西南农业学报

CSTPCDCSCD北大核心
影响因子:0.679
ISSN:1001-4829
年,卷(期):2015.28(3)
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