00580naa a2200205 a 450000100080000000500110000800800410001910000150006024501010007526000090017665000140018565000140019965000160021365300160022965300080024565300210025370000170027470000190029177300640031016102421995-06-27       1989    bl uuuu     u00u1 u    #d1 aKIM, C. H.  aExopolysaccharide-deficient mutants of Rhizobium fredii HH303 which are symbiotically effective.  c1989  aGenética  aMutação  aNodulação  aEficiência  aFBN  aRhizobium fredii1 aTULLY, R. E.1 aKEISTER, D. L.  tAppl. Environ. Microbiol.gv. 55, n. 7, p. 1852-1854, 1989.