| Autor: |
Krause, G. Heinrich, Laasch, Henrik |
| Zdroj: |
Zeitschrift für Naturforschung C; May 1987, Vol. 42 Issue: 5 p581-584, 4p |
| Abstrakt: |
Chlorophyll a fluorescence quenching was studied in intact, CO2fixing chloroplasts isolated from spinach. Energy-dependent quenching (qᴇ), which is correlated with the light-induced pro ton gradient across the thylakoid membrane presumably reflects an increase in the rate-constant of thermal dissipation of excitation energy in the photosynthetic pigment system . The extent of qᴇwas found to be linearly related to the decrease of quantum yield of photosynthesis. We suggest that this relationship indicates a dynamic property of the membrane to adjust thermal dissipation of absorbed light energy to the energy requirement of photosynthesis. |
| Databáze: |
Supplemental Index |
| Externí odkaz: |
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