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- W4323314882 endingPage "1173" @default.
- W4323314882 startingPage "1173" @default.
- W4323314882 abstract "Photosynthesis constitutes the only known natural process that captures the solar energy to convert carbon dioxide and water into biomass. The primary reactions of photosynthesis are catalyzed by the photosystem II (PSII) and photosystem I (PSI) complexes. Both photosystems associate with antennae complexes whose main function is to increase the light-harvesting capability of the core. In order to maintain optimal photosynthetic activity under a constantly changing natural light environment, plants and green algae regulate the absorbed photo-excitation energy between PSI and PSII through processes known as state transitions. State transitions represent a short-term light adaptation mechanism for balancing the energy distribution between the two photosystems by relocating light-harvesting complex II (LHCII) proteins. The preferential excitation of PSII (state 2) results in the activation of a chloroplast kinase which in turn phosphorylates LHCII, a process followed by the release of phosphorylated LHCII from PSII and its migration to PSI, thus forming the PSI-LHCI-LHCII supercomplex. The process is reversible, as LHCII is dephosphorylated and returns to PSII under the preferential excitation of PSI. In recent years, high-resolution structures of the PSI-LHCI-LHCII supercomplex from plants and green algae were reported. These structural data provide detailed information on the interacting patterns of phosphorylated LHCII with PSI and on the pigment arrangement in the supercomplex, which is critical for constructing the excitation energy transfer pathways and for a deeper understanding of the molecular mechanism of state transitions progress. In this review, we focus on the structural data of the state 2 supercomplex from plants and green algae and discuss the current state of knowledge concerning the interactions between antenna and the PSI core and the potential energy transfer pathways in these supercomplexes." @default.
- W4323314882 created "2023-03-07" @default.
- W4323314882 creator A5000473566 @default.
- W4323314882 creator A5013574007 @default.
- W4323314882 creator A5026965174 @default.
- W4323314882 date "2023-03-03" @default.
- W4323314882 modified "2023-09-30" @default.
- W4323314882 title "Dynamic Regulation of the Light-Harvesting System through State Transitions in Land Plants and Green Algae" @default.
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- W4323314882 doi "https://doi.org/10.3390/plants12051173" @default.
- W4323314882 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/36904032" @default.
- W4323314882 hasPublicationYear "2023" @default.
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