Abstract
Green plant photosystem II (PSII) is involved in the light reactions of photosynthesis, which take place in the thylakoid membrane of the chloroplast PSII is organized into large supercomplexes with variable amounts of membrane-bound peripheral antenna complexes. These supercomplexes are dimeric and contain usually 2-4 copies of trimeric LHCII complexes and have a further tendency to associate into megacomplexes or into crystalline domains, of which several types have been characterized. This review focuses on the overall composition and structure of the PSII supercomplex of green plants and its organization and interactions within the photosynthetic membrane. Further, we present the current knowledge how the thylakoid membrane is three-dimensionally organized within the chloroplast We also discuss how the supramolecular organization in the thylakoid membrane and the PSII flexibility may play roles in various short-term regulatory mechanisms of green plant photosynthesis. This article is part of a Special Issue entitled: Photosystem II. (C) 2011 Elsevier B.V. All rights reserved.
Original language | English |
---|---|
Pages (from-to) | 2-12 |
Number of pages | 11 |
Journal | Biochimica et Biophysica Acta |
Volume | 1817 |
Issue number | 1 |
DOIs | |
Publication status | Published - Jan-2012 |
Keywords
- Photosystem II
- Supercomplex
- Thylakoid membrane
- Electron microscopy
- Tomography
- LIGHT-HARVESTING COMPLEX
- PHOTOPROTECTIVE ENERGY-DISSIPATION
- CHLOROPLAST THYLAKOID MEMBRANES
- PSBS PROTEIN CONTROLS
- STATE TRANSITIONS
- CRYSTAL-STRUCTURE
- GRANA MEMBRANES
- ARABIDOPSIS-THALIANA
- ELECTRON TOMOGRAPHY
- ANGSTROM RESOLUTION