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Registro Completo |
Biblioteca(s): |
Embrapa Arroz e Feijão; Embrapa Soja. |
Data corrente: |
15/04/1992 |
Data da última atualização: |
17/04/2024 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Autoria: |
HUNGRIA, M.; RUSCHEL, A. P. |
Afiliação: |
MARIANGELA HUNGRIA DA CUNHA, CNPSO; ALAIDES PUPPIN RUSCHEL, CNPAF. |
Título: |
Acetylene reduction, hydrogen evolution and nodule respiration in Phaseolus vulgaris. |
Ano de publicação: |
1989 |
Fonte/Imprenta: |
Biology and Fertility of Soils, v. 7, n. 4, p. 351-358, 1989. |
Idioma: |
Inglês |
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. |
Palavras-Chave: |
Acetylene reducion assay; Feijoeiro; Hydrogenase. |
Thesagro: |
Feijão; Fixação de Nitrogênio; Nitrogenase; Nitrogênio; Nodulação; Phaseolus Vulgaris; Rhizobium. |
Thesaurus Nal: |
acetylene; Ara; beans; nodulation. |
Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal X Pesquisa, Tecnologia e Engenharia |
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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45. | | GRANGE, L.; HUNGRIA, M. Diversidade de rizobio capaz de nodular o feijoeiro isolado de solos da Regiao Nordeste e da Regiao Sul do Brasil. Genetics and Molecular Biology, Ribeirao Preto, v.23, n.3, p.353-354, Sept. 2000. Supplement. Trabalho apresentado no 46, Congresso Nacional de Genetica, 19 a 23 de setembro de 2000, Aguas de Lindoia, SP.Biblioteca(s): Embrapa Soja. |
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48. | | THOMAS, R.; HUNGRIA, M. South-South initiative for training and capacity building for the management of soil biology/biodiversity. In: INTERNATIONAL TECHNICAL WORKSHOP ON BIOLOGICAL MANAGEMENT OF SOIL ECOSYSTEMS FOR SUSTAINABLE AGRICULTURE, 2002, Londrina. Program, abstracts and related documents. Londrina: Embrapa Soybean: FAO, 2002. p. 140-142. (Embrapa Soja. Documentos, 182). Organizado por George G. Brown, Mariangela Hungria, Lenita Jacob Oliveira, Sally Bunning, Adriana Montañez.Biblioteca(s): Embrapa Soja. |
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49. | | HUNGRIA, M.; MEGÍAS, M. Uma década de ouro se aproxima para a microbiologia do solo: expectativas da pesquisa, da indústria, dos agricultores e da sociedade. In: IBEROAMERICAN CONFERENCE ON BENEFICIAL PLANT - MICROORGANISM - ENVIRONMENT INTERACTIONS, 2.; NATIONAL MEETING OF THE SPANISH SOCIETY OF NITROGEN FIXATION, 14.; LATIN AMERICAN MEETING ON RHIZOBIOLOGY, 26.; SPANISH-PROTUGUESE CONGRESS ON NITROGEN FIXATION, 3., 2013, Sevilla. Microorganisms for future agriculture. Sevilla: Universidad de Sevilla; ALAR; SEFIN, 2013. p. 510-517.Tipo: Artigo em Anais de Congresso |
Biblioteca(s): Embrapa Soja. |
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