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Registro Completo |
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Biblioteca(s): |
Embrapa Unidades Centrais. |
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Data corrente: |
23/04/2003 |
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Data da última atualização: |
24/10/2018 |
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Autoria: |
RAMOS, M. L. G.; PARSONS, R.; SPRENT, J. I.; JAMES, E. K. |
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Afiliação: |
Maria Lucrecia Gerosa Ramos, Faculdade de Agronomia e Medicina Veterinária - FAMV/Universidade de Brasília UnB; Richard Parsons, University of Dundee; Janet Irene Sprent, University of Dundee; Euan Kelvin James, University of Dundee. |
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Título: |
Effect of water stress on nitrogen fixation and nodule structure of common bean. |
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Ano de publicação: |
2003 |
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Fonte/Imprenta: |
Pesquisa Agropecuária Brasileira, Brasília, DF, v. 38, n. 3, p. 339-347, mar. 2003 |
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Idioma: |
Inglês |
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Notas: |
Título em português: Efeito do estresse hídrico na fixação biológica de nitrogênio e estrutura de nódulos de feijão. |
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Conteúdo: |
The aim of this work was to investigate the effect of water stress on N2 fixation and nodule structure of two common bean (Phaseolus vulgaris L.) cultivars Carioca and EMGOPA-201. Plants were harvested after five and eight days of water stress. Carioca had lower nodule dry weight on both water stress periods; shoot dry weight was lower at five days water stress and did not differ from control after eight days stress. Both cultivars had lower nitrogenase activity than control after five and eight days water stress. For both cultivars, after eight days stress bacteroid membranes were damaged. Carioca presented more pronounced damage to infected tissue, with host cell vacuolation and loss of the peribacteroid membrane at five days after stress; at eight days after stress, there was degradation of cytoplasm host cells and senescence of bacteroids, with their release into intercellular spaces. Intensity of immunogold-labeling of intercellular cortical glycoprotein with the monoclonal antibodies MAC 236/265 was different for both cultivars. |
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Palavras-Chave: |
potencial de água na folha. |
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Thesagro: |
Nitrogenase; Nodulação; Phaseolus Vulgaris. |
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Thesaurus Nal: |
leaf water potential; nodulation. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/AI-SEDE/24410/1/38_3_339.pdf
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Marc: |
LEADER 01868naa a2200241 a 4500
001 1108873
005 2018-10-24
008 2003 bl uuuu u00u1 u #d
100 1 $aRAMOS, M. L. G.
245 $aEffect of water stress on nitrogen fixation and nodule structure of common bean.
260 $c2003
500 $aTítulo em português: Efeito do estresse hídrico na fixação biológica de nitrogênio e estrutura de nódulos de feijão.
520 $aThe aim of this work was to investigate the effect of water stress on N2 fixation and nodule structure of two common bean (Phaseolus vulgaris L.) cultivars Carioca and EMGOPA-201. Plants were harvested after five and eight days of water stress. Carioca had lower nodule dry weight on both water stress periods; shoot dry weight was lower at five days water stress and did not differ from control after eight days stress. Both cultivars had lower nitrogenase activity than control after five and eight days water stress. For both cultivars, after eight days stress bacteroid membranes were damaged. Carioca presented more pronounced damage to infected tissue, with host cell vacuolation and loss of the peribacteroid membrane at five days after stress; at eight days after stress, there was degradation of cytoplasm host cells and senescence of bacteroids, with their release into intercellular spaces. Intensity of immunogold-labeling of intercellular cortical glycoprotein with the monoclonal antibodies MAC 236/265 was different for both cultivars.
650 $aleaf water potential
650 $anodulation
650 $aNitrogenase
650 $aNodulação
650 $aPhaseolus Vulgaris
653 $apotencial de água na folha
700 1 $aPARSONS, R.
700 1 $aSPRENT, J. I.
700 1 $aJAMES, E. K.
773 $tPesquisa Agropecuária Brasileira, Brasília, DF$gv. 38, n. 3, p. 339-347, mar. 2003
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