Data/hora: 01/06/2024 00:52:21

Biblioteca(s): | Embrapa Solos.
Tipo da produção científica: | Artigo em Periódico Indexado
Data corrente: | 08/10/2021
Data da última atualização: | 08/10/2021
Autoria: | BALDANI, V. L. D.; DOBEREINER, J.
Afiliação: | VERA LUCIA DIVAN BALDANI, SNLCS; JOHANNA DOBEREINER, SNLCS.
Título: | Host-plant specificity in the infection of cereals with Azospirillum spp.
Ano de publicação: | 1980
Fonte/Imprenta: | Soil Biology and Biochemistry, v. 12, n. 4, p. 433-439, 1980.
DOI: | https://doi.org/10.1016/0038-0717(80)90021-8
Idioma: | Inglês
Conteúdo: | The 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.
Thesaurus Nal: | Azospirillum; Corn; Infection; Rice; Wheat.
Categoria do assunto: | P Recursos Naturais, Ciências Ambientais e da Terra
Registro original: | Embrapa Solos (CNPS)
Exemplares: | CNPS - (20813-1) - UPC - AP - DD -  -  -  - DIS