title: [Physiological and biochemical properties of the bacterial association of Klebsiella terrigena E6 and Bacillus firmus E3].
abstract: Physiological and biochemical properties of the natural rhizospheric association of Klebsiella terrigena E6 and Bacillusfirmus E3 were studied. It was demonstrated that this association fixed actively molecular nitrogen at a rate of 110 nmol ethylene per 1 mg protein per h. The dynamics of bacterial population in the association and in pure cultures were studied. The properties of this association depended on the ratio of its components; the maximal nitrogen fixation was recorded at a content of B. firmus E310 amounting to 15% of the total cell number. It was demonstrated that the stability basis of this association was the specific interactions via its components via metabolites--phenol and para-hydroxybenzoic acid--as well as via nitrogen fixation, respiration, and pH of the medium. A scheme of the interactions between the components of association is shown.
authors.forename: A K
authors.initials: AK
authors.lastname: Zlotnikov
authors.forename: M L
authors.initials: ML
authors.lastname: Kazakov
authors.forename: K M
authors.initials: KM
authors.lastname: Zlotnikov
authors.forename: A V
authors.initials: AV
authors.lastname: Kazakov
authors.forename: M M
authors.initials: MM
authors.lastname: Umarov
mesh_terms: D001407:Bacillus / Q000254:growth & development*; D007709:Klebsiella / Q000254:growth & development*; D009586:Nitrogen Fixation / Q000502:physiology*; D010226:Parabens / Q000378:metabolism*; D019800:Phenol / Q000378:metabolism*; D012988:Soil Microbiology
chemical_list: D010226:Parabens; D019800:Phenol