00457naa a2200145 a 450000100080000000500110000800800410001910000170006024501040007726000090018165000280019065000270021870000180024577300480026316127421995-06-27       1987    bl ---       0--  u    #d1 aHARTMANN, A.  aRegulation of nitrogenase activity by oxygen in Azospirillum brasilense and Azospirillum lipoferum.  c1987  aAzospirillum brasilense  aAzospirillum lipoferum1 aBURRIS, R. H.  tJ. Bacteriol.gv.169, n.3, p.944-948, 1987.