title: [Diversity of Sinorhizobium fredii strains].
abstract: Rhizobial strains were isolated from soils growing with soybean cultivar Heilong 33 and Willimas. Fifty Sinorhizobium fredii strains were chosen, and their biological characteristics including growth velocity, acid-alkali endurance, resistance of intrinsic antibiotics, utilization of carbon and nitrogen sources, absorption of congo red, ability of melanin production, and plasmid profiles were comparatively researched. The dendrogram was described using the method of cluster analysis, and the biodiversity of Sinorhizobium fredii from different soils was proved.
authors.affiliation: Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan 430070. mzhouchen@hotmail.com
authors.forename: M
authors.initials: M
authors.lastname: Chen
authors.forename: F
authors.initials: F
authors.lastname: Xie
authors.forename: J
authors.initials: J
authors.lastname: Zhou
mesh_terms: D002244:Carbon / Q000378:metabolism; D004352:Drug Resistance, Microbial; D014644:Genetic Variation; D006863:Hydrogen-Ion Concentration; D009584:Nitrogen / Q000378:metabolism; D020579:Sinorhizobium / Q000145:classification / Q000235:genetics / Q000502:physiology*; D012988:Soil Microbiology; D013025:Glycine max / Q000382:microbiology / Q000502:physiology*
chemical_list: D002244:Carbon; D009584:Nitrogen