00539naa a2200181 a 450000100080000000500110000800800410001910000290006024500960008926000090018565000280019465000120022265000170023465000140025165000100026570000200027577300620029516199231995-06-27       1991    bl ---       0--  u    #d1 aCHRISTIANSEN WENIGER, C.  aNH4+-excreting Azospirillum brasilense mutants enhance the nitrogen supply of a wheat host.  c1991  aAzospirillum brasilense  aAmônia  aInoculação  aMutação  aTrigo1 aVAN VEEN, J. A.  tAppl. Environ. Microbiol.gv.57, n.10, p.3006-3012, 1991.