| 1 | Author | G. H. Einrich Krause, Henrik Laasch | Requires cookie* |
| Title | Energy-Dependent Chlorophyll Fluorescence Quenching in Chloroplasts Correlated with Quantum Yield of Photosynthesis  | ||
| Abstract | Chlorophyll a fluorescence quenching was studied in intact, C 0 2 fixing chloroplasts isolated from spinach. Energy-dependent quenching (qE), which is correlated with the light-induced pro ton gradient across the thylakoid membrane presumably reflects an increase in the rate-constant o f thermal dissipation o f excitation energy in the photosynthetic pigm ent system . The extent o f qE was found to be linearly related to the decrease o f quantum yield o f photosynthesis. We suggest that this relationship indicates a dynamic property o f the membrane to adjust thermal dissipation o f absorbed light energy to the energy requirem ent o f photosynthesis. | ||
| Reference | Z. Naturforsch. 42c, 581 (1987); received January 19 1987 | ||
| Published | 1987 | ||
| Keywords | Chlorophyll Fluorescence Quenching, Chloroplast, Photoinhibition, Photosynthesis, Thermal Energy Dissipation | ||
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