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Registro Completo |
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Biblioteca(s): |
Embrapa Agrobiologia. |
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Data corrente: |
28/11/2018 |
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Data da última atualização: |
02/05/2019 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
BREDA. F. A. da F.; SILVA, T. F. R. da; SANTOS, S. G. dos; ALVES, G. C.; REIS, V. M. |
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Afiliação: |
UFRRJ; THAMIRES FERREIRA RODRIGUES DA SILVA, UFRRJ; SILVANA GOMES DOS SANTOS, UFRRJ; GABRIELA CAVALCANTI ALVES, UFRRJ; VERONICA MASSENA REIS, CNPAB. |
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Título: |
Modulation of nitrogen metabolism of maize plants inoculated with Azospirillum brasilense and Herbaspirillum seropedicae. |
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Ano de publicação: |
2019 |
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Fonte/Imprenta: |
Archives of Microbiology, v. 201, n. 4, p. 547-558, 2019. |
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DOI: |
10.1007/s00203-018-1594-z |
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Idioma: |
Português |
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Conteúdo: |
Maize is highly responsive to the application of nitrogen to achieve high productivity. Inoculation with diazotrophic bacteria can improve plant growth with low N fertilization. The objective was to evaluate the inoculation of two species of diazotrophs on N metabolism in maize plants, in the presence of two concentrations of nitrogen in a hydroponic system. A factorial arrangement composed of two N levels (3.0 and 0.3 mM), with the presence of Hs?Herbaspirillum seropedicae, and Ab?Azospirillum brasilense or not. The parameters used were dry mass; N, P, and K accumulation; nitrate reductase activity; soluble fractions in roots and leaves. The inoculation altered the N metabolism and promoted greater development of maize plants, as well as a higher accumulation of P and K in the shoots. A more intensive process of N assimilation was evidenced when the plants were inoculated with H. seropedicae, leading to increased levels of NO3− and reduced N-amino, sugars, and NH4+ in leaves associated with high N level, opposite of A. brasilense. |
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Palavras-Chave: |
Inoculation Diazotrophs; Soluble fractions. |
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Thesaurus Nal: |
Nitrogen. |
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Categoria do assunto: |
S Ciências Biológicas |
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Marc: |
null
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Registro original: |
Embrapa Agrobiologia (CNPAB) |
