title: [Isolation and identification of N2-fixing strains of Bacillus in rice rhizosphere of the Yangtze River Valley].
abstract: Rice rhizosphere soil samples were colected from 10 sites of 7 provinces in the Yangzi River Valley, and from the soil samples 16 endospore-forming strains with ARA (Acetylene Reduction Activity) were isolated, the nitrogen fixing ability was tested by the method of 15N tracer and the atom 15N% excess are ranged from 0.0297% to 0.4714%. The strains were identified as Bacillus licheniformis, B. subtilis, B. azotoformans, B. cereus, B. pumilus, B. brevis, B. megaterium, B. firmu.
authors.affiliation: Department of Agronomy, China Agricultural University, Beijing 100094.
authors.forename: G
authors.initials: G
authors.lastname: Xie
authors.forename: B
authors.initials: B
authors.lastname: Su
authors.forename: Z
authors.initials: Z
authors.lastname: Cui
mesh_terms: D000114:Acetylene / Q000378:metabolism; D001407:Bacillus / Q000145:classification* / Q000302:isolation & purification / Q000502:physiology*; D002681:China; D003470:Culture Media; D009586:Nitrogen Fixation; D012275:Oryza / Q000382:microbiology*; D010084:Oxidation-Reduction
chemical_list: D003470:Culture Media; D000114:Acetylene