Activation of the non-electrochromic component in the 518 nm absorbance change by photosystem I
| Autor: | Wilma Versluis, Jaap J. J. Ooms, Wim J. Vredenberg |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 1991 |
| Předmět: |
Cytochrome f
P700 photosynthesis spinach Physiology Electrochromism P515 Laboratorium voor Plantenphysiologisch Onderzoek DCMU Cell Biology Plant Science General Medicine Photosystem I Photosynthesis Photochemistry Absorbance Electron transfer chemistry.chemical_compound gramicidin chemistry Genetics Laboratory of Plant Physiological Research Spinacea oleracea |
| Zdroj: | Physiologia Plantarum 82 (1991) Physiologia Plantarum, 82, 569-574 |
| ISSN: | 0031-9317 |
| Popis: | The flash-induced absorbance change measured at 518 nm (P515) in intact chloroplasts consists of at least 4 kinetically different components. Here the non-electrochromic component, either called phase d or reaction 3, is studied in some detail. The effect of DCMU, DQH2 and DBMIB on the amplitude of reaction 3 and the turnover of cytochrome f and P700 have been monitored, suggesting an involvement of photosystem 1 in the activation of the non-electrochromic absorbance change. This is confirmed by the parallel oscillation pattern found in P700 rereduction and the amplitude of reaction 3. |
| Databáze: | OpenAIRE |
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