00516naa a2200181 a 450000100080000000500110000800800410001910000140006024500890007426000090016365000270017265000120019965300120021170000160022370000180023970000180025777300590027518016142017-04-20       1987    bl ---       0--  u    #d1 aLUQUE, F.  aMutants of Azotobacter vinelandii altered in the regulation of nitrate assimilation.  c1987  aAzotobacter vinelandii  aNitrato  aNitrate1 aSANTERO, E.1 aMEDINA, J. R.1 aTORTOLERO, M.  tArchives of Microbiologygv.148, n.3, p.231-235, 1987.