多点接种方法计数土壤细菌生理类群的研究  

MULTIPOINT METHOD FOR QUANTIFICATION OF VARIOUS PHYSIOLOGICAL GROUPS OF BACTERIA IN STRAW MULCH NO\|TILLAGE SOILS

作　　者：高云超[1] 朱文珊[2] 陈文新[2] 

机构地区：[1]广东省农业科学院生物技术研究所,广州510640 [2]中国农业大学微生物系,北京100094

出　　处：《微生物学通报》2001年第4期1-4,共4页Microbiology China

摘　　要：多点接种计数方法是根据细菌分解固体培养基上不同的有机化合物的能力确定为不同的生理类群 ,由有机化合物的降解点数和根据MPN方法进行计数。对不同的耕作方法进行的测定表明 ,秸秆覆盖免耕能够明显提高土壤中分解淀粉、木聚糖、纤维素、果胶、几丁质、卵磷质、脂类和蛋白质类群的细菌数量。A modified multipoint method for enumeration of bacteria capable of various biochemical degradation reactions in soil is described.After continuous two\|crop winter wheat and summer corn rotation with no\|tillage for many years,the counts of hydrolysis of starch,xylan,pectin,protein,cellulose,chitin,lecithin and lipids bacteria were all increased significantly in no\|tillage 0\|10 cm soil depth compared to conventional tillage and direct drilling.

关 键 词：多点接种计数方法 细菌生理类群 秸秆覆盖免耕 土壤细菌 

分 类 号：S154.3[农业科学—土壤学]