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 | Acesso ao texto completo restrito à biblioteca da Embrapa Arroz e Feijão. Para informações adicionais entre em contato com cnpaf.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Arroz e Feijão. |
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Data corrente: |
30/03/1999 |
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Data da última atualização: |
08/01/2020 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
RUSCHEL, A. P.; FREITAS, J. R. de; SILVA, P. M. da. |
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Afiliação: |
ALAIDES PUPPIN RUSCHEL, CNPAF. |
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Título: |
Hydrogen uptake by Azolla-Anabaena. |
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Ano de publicação: |
1986 |
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Fonte/Imprenta: |
Plant and Soil, v. 97, p. 79-83, 1986. |
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Idioma: |
Inglês |
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Conteúdo: |
Experiments under laboratory conditions were carried out with the objective of studying hydrogen uptake in the Azolla-Anabaena system. Tritium was used as tracer and plants were incubated under different atmospheric composition: a) Air + 3H2; b) Air + 3H2 + CO; c) Air -h 3 H2 -I- CO, d) Argon -1- 3 H2 + C02 -I- CO and in presence and absence of light, to study hydrogen uptake via hydrogenase and nitrogenase activity. Azolla-Anabaena showed greater hydrogen uptake under argon atmosphere than under air. Carbon monoxide decrease hydrogen uptake as well as nitrogenase activity. Under dark conditions, nitrogenase activity was smaller under argon than air atmosphere. Carbon monoxide decreased hydrogen uptake. H2 -uptake was not affected by light, as it occurs under dark conditions. There are evidences of recycling of the hydrogen evolved through nitrogenase. |
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Palavras-Chave: |
Azolla-Anabaena; Hydrogen uptake; Hydrogenase; Nitrogenase acitivity. |
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Thesaurus Nal: |
tritium. |
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Categoria do assunto: |
X Pesquisa, Tecnologia e Engenharia |
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Marc: |
LEADER 01382naa a2200205 a 4500
001 1205738
005 2020-01-08
008 1986 bl uuuu u00u1 u #d
100 1 $aRUSCHEL, A. P.
245 $aHydrogen uptake by Azolla-Anabaena.
260 $c1986
520 $aExperiments under laboratory conditions were carried out with the objective of studying hydrogen uptake in the Azolla-Anabaena system. Tritium was used as tracer and plants were incubated under different atmospheric composition: a) Air + 3H2; b) Air + 3H2 + CO; c) Air -h 3 H2 -I- CO, d) Argon -1- 3 H2 + C02 -I- CO and in presence and absence of light, to study hydrogen uptake via hydrogenase and nitrogenase activity. Azolla-Anabaena showed greater hydrogen uptake under argon atmosphere than under air. Carbon monoxide decrease hydrogen uptake as well as nitrogenase activity. Under dark conditions, nitrogenase activity was smaller under argon than air atmosphere. Carbon monoxide decreased hydrogen uptake. H2 -uptake was not affected by light, as it occurs under dark conditions. There are evidences of recycling of the hydrogen evolved through nitrogenase.
650 $atritium
653 $aAzolla-Anabaena
653 $aHydrogen uptake
653 $aHydrogenase
653 $aNitrogenase acitivity
700 1 $aFREITAS, J. R. de
700 1 $aSILVA, P. M. da
773 $tPlant and Soil$gv. 97, p. 79-83, 1986.
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Embrapa Arroz e Feijão (CNPAF) |
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| 1. |  | CAETANO, J. O.; BENITES, V. de M.; VANIN, A.; SPEROTTO, T.; SANTOS, J. A. C.; ALMEIDA, V. A. V. de; MARASCA, I. Sistemas de manejo do solo na entressafra, ao longo de nove anos, em sucessão com soja. In: REUNIÃO BRASILEIRA DE FERTILIDADE DO SOLO E NUTRIÇÃO DE PLANTAS, 32.; REUNIÃO BRASILEIRA SOBRE MICORRIZAS, 16.; SIMPÓSIO BRASILEIRO DE MICROBIOLOGIA DO SOLO, 14.; REUNIÃO BRASILEIRA DE BIOLOGIA DO SOLO, 11., 2016, Goiânia. Rumo aos novos desafios: anais. Goiânia: SBCS, Núcleo Regional Centro-Oeste, 2016. FertBio 2016.| Tipo: Resumo em Anais de Congresso |
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