| |
|
|
 | Acesso ao texto completo restrito à biblioteca da Embrapa Agrobiologia. Para informações adicionais entre em contato com cnpab.biblioteca@embrapa.br. |
|
Registro Completo |
|
Biblioteca(s): |
Embrapa Agrobiologia. |
|
Data corrente: |
19/07/2019 |
|
Data da última atualização: |
11/09/2020 |
|
Tipo da produção científica: |
Artigo em Periódico Indexado |
|
Autoria: |
SANTOS, S. G. dos; RIBEIRO, F. da S.; ALVES, G. C.; SANTOS, L. A.; REIS, V. M. |
|
Afiliação: |
Silvana Gomes dos Santos, Universidade Federal Rural do Rio de Janeiro; Flaviane da Silva Ribeiro, Instituto Federal do Pará, Campus Bragança; Gabriela Cavalcanti Alves, UFRRJ; Leandro Azevedo Santos, UFRRJ; VERONICA MASSENA REIS, CNPAB. |
|
Título: |
Inoculation with five diazotrophs alters nitrogen metabolism during the initial growth of sugarcane varieties with contrasting responses to added nitrogen. |
|
Ano de publicação: |
2019 |
|
Fonte/Imprenta: |
Plant and Soil, First Online, 08 May, 2019 |
|
Idioma: |
Inglês |
|
Notas: |
Publicado na Plant and Soil, v. 451, 25-44, 2020. |
|
Conteúdo: |
We examined the influence of inoculation with five species/strains of diazotrophic bacteria on the modulation of two enzymes involved in the assimilation of N and on the soluble N fractions in the sugarcane varieties RB867515 (adapted for low fertility soils) and IACSP95-5000 (adapted for medium to high fertility soils) under high- (3 mM) and low (0.3 mM)-N conditions in hydroponic cultivation for 59 days.The sugarcane plants were produced in three steps to obtain the hydroponic cultivation: the supply of 3 mM N for 30 days (first harvest), N depletion for 72 h (second harvest), and cultivation in high- and low-N conditions over 26 days (final harvest). Inoculation was performed by immersion of the minisetts in a diluted solution of five diazotrophic bacteria. After the final harvest, plants were divided into roots and shoots to assess their dry weight and N, P, and K accumulation.The variety played an important role in the interaction with diazotrophs, each showing distinct behavior in the activity of their N-assimilation enzymes. The nitrate reductase activity (NRa?EC 1.7.1.1) was increased in var. RB867515 by 26% in the shoots and by 48% in the roots after 72 h under N depletion, while var. IACSP95-5000 showed a reduced enzymatic activity in the roots (by 62%) but not in the shoots. Under high-N conditions, the inoculated IACSP95-5000 plants showed 31% higher glutamine synthetase activity (GSa?EC 6.31.2) compared with 19% in RB867515. Under low-N conditions, the GSas were 21% and 16% higher in the inoculated RB867515 and IACSP95-5000 plants, respectively, compared with that of the control. The content of nitrogen in the form of nitrate (N-nitrate) confirmed these varietal differences, but the soluble sugar content did not. MenosWe examined the influence of inoculation with five species/strains of diazotrophic bacteria on the modulation of two enzymes involved in the assimilation of N and on the soluble N fractions in the sugarcane varieties RB867515 (adapted for low fertility soils) and IACSP95-5000 (adapted for medium to high fertility soils) under high- (3 mM) and low (0.3 mM)-N conditions in hydroponic cultivation for 59 days.The sugarcane plants were produced in three steps to obtain the hydroponic cultivation: the supply of 3 mM N for 30 days (first harvest), N depletion for 72 h (second harvest), and cultivation in high- and low-N conditions over 26 days (final harvest). Inoculation was performed by immersion of the minisetts in a diluted solution of five diazotrophic bacteria. After the final harvest, plants were divided into roots and shoots to assess their dry weight and N, P, and K accumulation.The variety played an important role in the interaction with diazotrophs, each showing distinct behavior in the activity of their N-assimilation enzymes. The nitrate reductase activity (NRa?EC 1.7.1.1) was increased in var. RB867515 by 26% in the shoots and by 48% in the roots after 72 h under N depletion, while var. IACSP95-5000 showed a reduced enzymatic activity in the roots (by 62%) but not in the shoots. Under high-N conditions, the inoculated IACSP95-5000 plants showed 31% higher glutamine synthetase activity (GSa?EC 6.31.2) compared with 19% in RB867515. Under low-N conditions, the GSas were... Mostrar Tudo |
|
Palavras-Chave: |
Diazotrophic bacteria; Enzymatic activity; Saccharum sp. |
|
Thesaurus Nal: |
Nitrogen. |
|
Categoria do assunto: |
S Ciências Biológicas |
|
Marc: |
null
Download
Esconder MarcMostrar Marc Completo |
|
Registro original: |
Embrapa Agrobiologia (CNPAB) |
|
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
URL |
Voltar
|
|
|
| Registros recuperados : 5 | |
| 1. |  | MONTEIRO, M. G. T.; SOUZA, J. M. de M.; PINHEIRO, H. A.; LEMOS, O. F. de; GOMES JUNIOR, R. A. Respostas de inflorescências imaturas de híbrido interespecífico da palma de óleo cultivadas in vitro. In: CONGRESSO BRASILEIRO DE FLORICULTURA E PLANTAS ORNAMENTAIS, 22.; CONGRESSO BRASILEIRO DE CULTURA DE TECIDOS DE PLANTAS, 9., 2019, Juazeiro. Anais... Juazeiro: UNIVASF, 2019. p. 170.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Amazônia Oriental. |
|    |
| 3. | | SANTOS, J. V. S. dos; OLIVEIRA, H. S. de; LEMOS, O. F. de; SOUZA, J. M. de M.; MIRANDA, V. S. Indução de calos a partir de explantes foliares de genótipos de Piper nigrum L. In: SEMINÁRIO ANUAL DE INICIAÇÃO CIENTÍFICA DA UFRA, 15., 2017, Belém, PA. Anais... Belém, PA: UFRA, 2018. p. 153.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Amazônia Oriental. |
| |
| 4. | | MONTEIRO, M. G. T.; SOUZA, J. M. de M.; PINHEIRO, H. A.; LEMOS, O. F. de; OLIVEIRA, R. P. de; BOÁS, B. B.; SOUZA, F. I. B. de. In vitro induction of callus and flowers in immature oil palm inflorescences. Journal of Agricultural Studies, v. 8, n. 4, p. 712-725, 2020.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: C - 0 |
| Biblioteca(s): Embrapa Amazônia Oriental. |
| |
| 5. | | SILVA, A. C. B. da; LAMEIRA, O. A.; OLIVEIRA, H. S. de; SOUZA, J. M. de M.; RODRIGUES, S. de M.; FERREIRA, T. A. A.; GUEDES, A. S.; COSTA, M. S. M. da. Efeito da intensidade de luz no desenvolvimento de especies medicinais e aromáticas em condições in vitro. Contribuciones a Las Ciencias Sociales, São José dos Pinhais, v. 16, n. 5, p. 2632-2649, 2023.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 4 |
| Biblioteca(s): Embrapa Amazônia Oriental. |
| |
| Registros recuperados : 5 | |
|
| Expressão de busca inválida. Verifique!!! |
|
|
