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Registro Completo |
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Biblioteca(s): |
Embrapa Mandioca e Fruticultura. |
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Data corrente: |
16/08/1995 |
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Data da última atualização: |
17/05/2023 |
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Autoria: |
OHNISHI, J.; KANAI, R. |
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Afiliação: |
Departmet of Biochemistry, Faculty of Science, Saitama University, Urawa 338, Japan. |
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Título: |
Light-Dependent Uptake of Pyruvate by Mesophyll Chloroplasts of a C4 Plant, Panicum miliaceum L. |
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Ano de publicação: |
1987 |
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Fonte/Imprenta: |
Plant Cell Physiol. v.28, n.2, p.243-251, 1987 |
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Idioma: |
Inglês |
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Conteúdo: |
Lighe-dependent active uptake of pyruvate was reported in mesophyll choloroplast of a C4 plant, Panicum miliaceum [Ohnishi and Kanai (1987) Plant Cell Physiol. 28: 1]. The present study tried to clarify the energy source of this active uptake. Preillumination of the mesophyll chloroplasts increased over tenfold their pyruvate uptake in the light and dark. This indicates that light itself is not essential for the enhancement. The pyruvate uptake capacity (the initial uptake rate) of the mesophyll chloroplasts increased on illumonation and reached a steady-state level after a few minutes; this rise sas faster under higher light intensities. When the chloroplasts were returned to darkness, theuptake capacity decayed with a half-life of about 1 min; this was independent of the light intensity of preillumination. |
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Palavras-Chave: |
Mesophyll chloroplast; Panicum miliaceum L; pH gradient; Pyruvate uptake. |
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Thesaurus Nal: |
active transport; C4 photosynthesis. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 01434naa a2200205 a 4500
001 1646756
005 2023-05-17
008 1987 bl uuuu u00u1 u #d
100 1 $aOHNISHI, J.
245 $aLight-Dependent Uptake of Pyruvate by Mesophyll Chloroplasts of a C4 Plant, Panicum miliaceum L.$h[electronic resource]
260 $c1987
520 $aLighe-dependent active uptake of pyruvate was reported in mesophyll choloroplast of a C4 plant, Panicum miliaceum [Ohnishi and Kanai (1987) Plant Cell Physiol. 28: 1]. The present study tried to clarify the energy source of this active uptake. Preillumination of the mesophyll chloroplasts increased over tenfold their pyruvate uptake in the light and dark. This indicates that light itself is not essential for the enhancement. The pyruvate uptake capacity (the initial uptake rate) of the mesophyll chloroplasts increased on illumonation and reached a steady-state level after a few minutes; this rise sas faster under higher light intensities. When the chloroplasts were returned to darkness, theuptake capacity decayed with a half-life of about 1 min; this was independent of the light intensity of preillumination.
650 $aactive transport
650 $aC4 photosynthesis
653 $aMesophyll chloroplast
653 $aPanicum miliaceum L
653 $apH gradient
653 $aPyruvate uptake
700 1 $aKANAI, R.
773 $tPlant Cell Physiol.$gv.28, n.2, p.243-251, 1987
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Embrapa Mandioca e Fruticultura (CNPMF) |
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| 2. |  | MONTEIRO, S. R. S.; MELLO JÚNIOR, N. R. C. de; FUKUI, C. M.; SANTOS, L. F. dos; BRECHT, J. F.; SARGENT, S. A.; FREITAS, S. T. de. Modified atmosphere conditions to export ‘Palmer’ mangos at advanced maturity. In: CONGRESSO BRASILEIRO DE PROCESSAMENTO MÍNIMO E PÓS-COLHEITA DE FRUTAS, FLORES E HORTALIÇAS, 3., 2024, Piracicaba. Anais... Piracicaba: ESALQ/USP, 2024. Resumo 212.| Tipo: Resumo em Anais de Congresso |
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| 3. | | ALVES, J. S.; PIRES, B. P. C.; SANTOS, L. F.; MELLO JÚNIOR, N. R. C. de; MONTEIRO, S. R. S.; KIDO, E. A.; WALSH, K. B.; FREITAS, S. T. de. Early detection of black flesh internal physiological disorder in mango by Vis-NIR spectra and machine learning. In: CONGRESSO BRASILEIRO DE PROCESSAMENTO MÍNIMO E PÓS-COLHEITA DE FRUTAS, FLORES E HORTALIÇAS, 3., 2024, Piracicaba. Anais... Piracicaba: ESALQ/USP, 2024. Resumo 179.| Tipo: Resumo em Anais de Congresso |
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| 4. | | MELLO JÚNIOR, N. R. C. de; PIRES, B. P. de C.; ALVES, J. S.; REGIS, E. S.; SANTOS, L. F. dos; BRECHT, J. K.; SARGENT, S. A.; FREITAS, S. T. de. Modified atmosphere conditions to export ‘Ataulfo’ mangos at advanced maturity. In: CONGRESSO BRASILEIRO DE PROCESSAMENTO MÍNIMO E PÓS-COLHEITA DE FRUTAS, FLORES E HORTALIÇAS, 3., 2024, Piracicaba. Anais... Piracicaba: ESALQ/USP, 2024. Resumo 210.| Tipo: Resumo em Anais de Congresso |
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