Molecular design of the photosystem II light-harvesting antenna : photosynthesis and photoprotection
The photosystem II (PSII) light-harvesting system carries out two essential functions, the efficient collection of light energy for photosynthesis, and the regulated dissipation of excitation energy in excess of that which can be used. This dual function requires structural and functional flexibilit...
| Veröffentlicht in: | Journal of experimental botany. - 1985. - 56(2005), 411 vom: 04. Jan., Seite 365-73 |
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| Format: | Aufsatz |
| Sprache: | English |
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2005
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| Zugriff auf das übergeordnete Werk: | Journal of experimental botany |
| Schlagworte: | Journal Article Review Photosynthetic Reaction Center Complex Proteins Photosystem II Protein Complex Plant Proteins Xanthophylls Zeaxanthins beta Carotene 01YAE03M7J |
| Zusammenfassung: | The photosystem II (PSII) light-harvesting system carries out two essential functions, the efficient collection of light energy for photosynthesis, and the regulated dissipation of excitation energy in excess of that which can be used. This dual function requires structural and functional flexibility, in which light-harvesting proteins respond to an external signal, the thylakoid DeltapH, to induce feedback control. This process, referred to as non-photochemical quenching (NPQ) depends upon the xanthophyll cycle and the PsbS protein. In nature, NPQ is heterogeneous in terms of kinetics and capacity, and this adapts photosynthetic systems to the specific dynamic features of the light environment. The molecular features of the thylakoid membrane which may enable this flexibility and plasticity are discussed |
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| Beschreibung: | Date Completed 11.05.2005 Date Revised 08.04.2022 published: Print-Electronic Citation Status MEDLINE |
| ISSN: | 1460-2431 |