01684naa a2200205 a 450000100080000000500110000800800410001902400540006010000220011424501010013626000090023752010880024665000170133465000090135165000140136065000090137465000100138370000190139377300660141221351842021-10-08       1980    bl uuuu     u00u1 u    #d7 ahttps://doi.org/10.1016/0038-0717(80)90021-82DOI1 aBALDANI, V. L. D.  aHost-plant specificity in the infection of cereals with Azospirillum spp.h[electronic resource]  c1980  aThe specificity of the infection of maize, wheat and rice roots by N2-fixing Azospirillum spp was studied in four greenhouse experiments using pots with unsterilized soil and in two field experiments. In all experiments A. lipoferum was most frequently isolated from externally sterilized roots of maize, and A. brasilense nir- (nitrite reductase negative) from wheat and rice. In pot experiments, A. brasilense nir+ was isolated with moderate frequency from within maize roots but rarely from within wheat or rice roots. Inoculation of the pots with a mixture of representative strains of the three Azospirillum groups had no effect on the proportion of strains recovered from each plant species. In the field experiments, inoculation with spontaneous streptomycin-resistant mutants of two of the representative strains confirmed the apparent specificity of A. lipoferum for maize roots and of A. brasilense for wheat but the results were partially obscured by the unexpectedly high proportion of streptomycin-resistant strains isolated from within the roots of uninoculated plants.  aAzospirillum  aCorn  aInfection  aRice  aWheat1 aDOBEREINER, J.  tSoil Biology and Biochemistrygv. 12, n. 4, p. 433-439, 1980.