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 | Acesso ao texto completo restrito à biblioteca da Embrapa Soja. Para informações adicionais entre em contato com valeria.cardoso@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Arroz e Feijão; Embrapa Soja. |
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Data corrente: |
15/04/1992 |
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Data da última atualização: |
17/04/2024 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
HUNGRIA, M.; RUSCHEL, A. P. |
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Afiliação: |
MARIANGELA HUNGRIA DA CUNHA, CNPSO; ALAIDES PUPPIN RUSCHEL, CNPAF. |
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Título: |
Acetylene reduction, hydrogen evolution and nodule respiration in Phaseolus vulgaris. |
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Ano de publicação: |
1989 |
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Fonte/Imprenta: |
Biology and Fertility of Soils, v. 7, n. 4, p. 351-358, 1989. |
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Idioma: |
Inglês |
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Conteúdo: |
In an experiment performed under greenhouse conditions, four cultivars of Phaseolus vulgaris L. (Venezuela-350; Aroana; Moruna; Carioca) were inoculated with three Rhizobium leguminosarum biovar phaseoli strains (C-05; C-40 = CIAT 255; C-89 = CIAT 55) and were fertilized with an N-free mineral nutrient solution. The plants were harvested 25, 40, and 55 days after emergence and the following paramenters were evaluated: Nitrogenase activity of nodulated roots, H2 evolution by the nodules; relative efficiency of nitrogenase; respiration rates of nodulated roots and detached nodules; dry weight and total N of stems, leaves, pods, roots, and nodules. Generally the bean cultivar, Rhizobium strain, had an effect and there was an interaction effect with both symbiotic partners, on all parameters. On average, nodules represented 23% of total root respiration but the best symbiotic combinations showed lower ratios of C respired to N fixed. The maximum N-assimilation rate (between 40 and 55 days after emergence) of 11.93 mg N plant-1 day-1 occurred with the symbiotic combination of Carioca × C-05, while the poorest rate of 0.55 mg N plant-1 day-1 was recorded with Venezuela-350 × C-89. The best symbiotic combinations always showed the highest relative nitrogenase efficiency, but the differences in N2-fixation rates cannot be explained solely in terms of conservation of energy by recycling of H2. This requires further investigation. |
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Palavras-Chave: |
Acetylene reducion assay; Feijoeiro; Hydrogenase. |
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Thesagro: |
Feijão; Fixação de Nitrogênio; Nitrogenase; Nitrogênio; Nodulação; Phaseolus Vulgaris; Rhizobium. |
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Thesaurus Nal: |
acetylene; Ara; beans; nodulation. |
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Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal
X Pesquisa, Tecnologia e Engenharia |
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Marc: |
LEADER 02245naa a2200301 a 4500
001 1457760
005 2024-04-17
008 1989 bl uuuu u00u1 u #d
100 1 $aHUNGRIA, M.
245 $aAcetylene reduction, hydrogen evolution and nodule respiration in Phaseolus vulgaris.
260 $c1989
520 $aIn an experiment performed under greenhouse conditions, four cultivars of Phaseolus vulgaris L. (Venezuela-350; Aroana; Moruna; Carioca) were inoculated with three Rhizobium leguminosarum biovar phaseoli strains (C-05; C-40 = CIAT 255; C-89 = CIAT 55) and were fertilized with an N-free mineral nutrient solution. The plants were harvested 25, 40, and 55 days after emergence and the following paramenters were evaluated: Nitrogenase activity of nodulated roots, H2 evolution by the nodules; relative efficiency of nitrogenase; respiration rates of nodulated roots and detached nodules; dry weight and total N of stems, leaves, pods, roots, and nodules. Generally the bean cultivar, Rhizobium strain, had an effect and there was an interaction effect with both symbiotic partners, on all parameters. On average, nodules represented 23% of total root respiration but the best symbiotic combinations showed lower ratios of C respired to N fixed. The maximum N-assimilation rate (between 40 and 55 days after emergence) of 11.93 mg N plant-1 day-1 occurred with the symbiotic combination of Carioca × C-05, while the poorest rate of 0.55 mg N plant-1 day-1 was recorded with Venezuela-350 × C-89. The best symbiotic combinations always showed the highest relative nitrogenase efficiency, but the differences in N2-fixation rates cannot be explained solely in terms of conservation of energy by recycling of H2. This requires further investigation.
650 $aacetylene
650 $aAra
650 $abeans
650 $anodulation
650 $aFeijão
650 $aFixação de Nitrogênio
650 $aNitrogenase
650 $aNitrogênio
650 $aNodulação
650 $aPhaseolus Vulgaris
650 $aRhizobium
653 $aAcetylene reducion assay
653 $aFeijoeiro
653 $aHydrogenase
700 1 $aRUSCHEL, A. P.
773 $tBiology and Fertility of Soils$gv. 7, n. 4, p. 351-358, 1989.
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Registro original: |
Embrapa Soja (CNPSO) |
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| Registros recuperados : 260 | |
| 8. |  | RUSCHEL, A. R. Pimenta pseudocaryophyllus: craveiro-do-mato. In: CORADIN, L.; SIMINSKI, A.; REIS, A. (Ed.). Espécies nativas da flora brasileira de valor econômico atual ou potencial: plantas para o futuro - Região Sul. Brasília, DF: Ministério do Meio Ambiente, 2011. p. 223-225. (Biodiversidade, 40).| Tipo: Capítulo em Livro Técnico-Científico |
| Biblioteca(s): Embrapa Amazônia Oriental. |
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| 15. | | REIS, L. P.; RUSCHEL, A. R. Avaliação das espécies arbóreas após 28 anos da exploração. In: CONGRESSO NACIONAL DE BOTÂNICA, 60.; REUNIÃO NORDESTINA DE BOTÂNICA, 32.; ENCONTRO REGIONAL DE BOTÂNICOS - MG, BA , ES, 29., 2009, Feira de Santana. Botânica brasileira: futuro e compromissos. Feira de Santana: SBB: UEFS, 2009.| Tipo: Artigo em Anais de Congresso / Nota Técnica |
| Biblioteca(s): Embrapa Amazônia Oriental. |
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| 16. | | REIS, L. P.; RUSCHEL, A. R. Avaliação das espécies comerciais na flona Tapajós após 28 anos da exploração florestal. In: SEMINÁRIO CIENTÍFICO DA UFRA, 7.; SEMINÁRIO [DE INICIAÇÃO CIENTÍFICA] DA EMBRAPA AMAZÔNIA ORIENTAL, 13.; SEMINÁRIO DE PESQUISA DA UFRA, 1., 2009, Belém, PA. Pesquisa e desenvolvimento tecnológico na formação do jovem cientista: anais. Belém, PA: UFRA: Embrapa Amazônia Oriental, 2009. 1 CD-ROM.| Tipo: Artigo em Anais de Congresso / Nota Técnica |
| Biblioteca(s): Embrapa Amazônia Oriental. |
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| Registros recuperados : 260 | |
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| Nenhum registro encontrado para a expressão de busca informada. |
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