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Biblioteca(s): |
Embrapa Trigo. |
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Data corrente: |
10/01/2010 |
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Data da última atualização: |
18/08/2011 |
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Autoria: |
OBENDORF, R. L.; HUFFAKER, R. C. |
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Título: |
Influence of age and illumination on distribution of several calvin cycle enzymes in greening barley leaves. |
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Ano de publicação: |
1970 |
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Fonte/Imprenta: |
Plant Physiology, v. 45, n. 5, p. 579-582, 1970. |
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Idioma: |
Inglês |
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Conteúdo: |
Activities of phosphoriboisomerase, phosphoribulokinase, and ribulose 1,5-diphosphate carboxylase, protein content, and chlorophyll accumulation in dark-grown barley seedlings were measured before and after illumination. Enzymatic activities, levels of soluble protein, and accumulation (upon illumination) of chlorophyll in leaves declined from tips toward the base. In response to increasing time of illumination, chlorophyll accumulation and activities of phosphoribulokinase and ribulose 1,5-diphosphate carboxylase (enzymes located in chloroplasts) increased most in tip portions whereas activity of phosphoriboisomerase and levels of soluble protein (constituents not confined to chloroplasts) increased similarly in all sections of the leaf. Maximum activity of phosphoribulokinase and maximum accumulation of chlorophyll shifted toward median portions of the leaf blade with increased age of seedling before illumination. Maximum activity of ribulose 1,5-diphosphate carboxylase and maximum level of soluble protein occurred in all leaf sections when the seedlings were 7 days of age before illumination. |
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Thesagro: |
Cevada; Clorofila; Fisiologia; Fotossíntese. |
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Categoria do assunto: |
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Marc: |
LEADER 01632naa a2200181 a 4500
001 1832151
005 2011-08-18
008 1970 bl --- 0-- u #d
100 1 $aOBENDORF, R. L.
245 $aInfluence of age and illumination on distribution of several calvin cycle enzymes in greening barley leaves.
260 $c1970
520 $aActivities of phosphoriboisomerase, phosphoribulokinase, and ribulose 1,5-diphosphate carboxylase, protein content, and chlorophyll accumulation in dark-grown barley seedlings were measured before and after illumination. Enzymatic activities, levels of soluble protein, and accumulation (upon illumination) of chlorophyll in leaves declined from tips toward the base. In response to increasing time of illumination, chlorophyll accumulation and activities of phosphoribulokinase and ribulose 1,5-diphosphate carboxylase (enzymes located in chloroplasts) increased most in tip portions whereas activity of phosphoriboisomerase and levels of soluble protein (constituents not confined to chloroplasts) increased similarly in all sections of the leaf. Maximum activity of phosphoribulokinase and maximum accumulation of chlorophyll shifted toward median portions of the leaf blade with increased age of seedling before illumination. Maximum activity of ribulose 1,5-diphosphate carboxylase and maximum level of soluble protein occurred in all leaf sections when the seedlings were 7 days of age before illumination.
650 $aCevada
650 $aClorofila
650 $aFisiologia
650 $aFotossíntese
700 1 $aHUFFAKER, R. C.
773 $tPlant Physiology$gv. 45, n. 5, p. 579-582, 1970.
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| 1. |  | CASTELLÓN, R. E. R.; ARAÚJO, F. M. M. C. de; RAMOS, M. V.; ANDRADE NETO, M.; FREIRE FILHO, F. R.; GRANGEIRO, T. B.; CAVADA, B. S. Composição elementar e caracteização da fração lipídica de seis cultivares de caupi. Revista Brasileira de Engenharia Agrícola e Ambiental, v. 7, n. 1, p. 149-153, 2003.| Biblioteca(s): Embrapa Meio-Norte. |
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| 2. | | GRANGEIRO, T. B.; CASTELLÓN, R. E. R.; ARAÚJO, F. M. M. C. de; SILVA, S. M. de S. e; FREIRE, É. de A.; CAJAZEIRAS, J. B.; ANDRADE NETO, M.; GRANGEIRO, M. B.; CAVADA, B. S. Composição bioquímica da semente. In: FREIRE FILHO, F. R.; LIMA, J. A. de A.; RIBEIRO, V. Q. (Ed.). Feijão-caupi: avanços tecnológicos. Brasília, DF: Embrapa Informação Tecnológica; Teresina: Embrapa Meio-Norte, 2005. Cap. 9. p. 337-365.| Tipo: Capítulo em Livro Técnico-Científico |
| Biblioteca(s): Embrapa Meio-Norte. |
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| Registros recuperados : 2 | |
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