00561naa a2200181 a 450000100080000000500110000800800410001910000170006024501470007726000090022465000280023365000110026165000140027265300150028670000150030170000170031677300460033316184871995-06-27 1993 bl --- 0-- u #d1 aLIANG, Y. Y. aCharacterization of the ntrBC genes of Azospirillum brasilense Sp7btheir involvement in the regulation of nitrogenase synthesis and activity. c1993 aAzospirillum brasilense aEnzima aGenética aDIAZOTROFO1 aARSENE, F.1 aELMERICH, C. tMol. Gen. Genet.gv.240, p.188-196, 1993.