ArticleNature communications2025
A stress-induced paralog of Lhcb4 controls the photosystem II functional architecture in Arabidopsis thaliana.
Article in Nature communications, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.
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Who cites it
6 citing papers in PubMed.
- Quantitative phosphoproteomics profiling reveals the regulatory mechanisms underlying high light stress in maize and rice.Photosynthesis research · 2026Article
- The structure of intact and active Photosystem II from Arabidopsis thaliana at 2.44 Å resolution.The New phytologist · 2026Article
- The MsZFP1-MsWRKY40-MsWRKY41 module efficiently regulates LHCII biogenesis via ABA-dependent manner in alfalfa.Science advances · 2026Article
- Structural interactions of TLP18.3 and Psb27-H1 to the luminal CP43 and rubredoxin-ENH1 to the stromal side of photosystem II in higher plants.The Journal of biological chemistry · 2026Article
- Multi-Omics Analysis Identifies SlLhcb13 as a Key Regulator of Tomato Resistance toPlants (Basel, Switzerland) · 2026Article
- Light-Harvesting Protein LHCB4 Is Important for Stable Dimeric Organization of Photosystem II.Physiologia plantarumArticle
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Authors and funding
7 authors.
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Abstract
Photosystem II (PSII) is the pigment-protein complex catalysing light-induced water oxidation. In Arabidopsis thaliana, it includes three Lhcb4-6 proteins linking the core complex to peripheral trimeric antennae. While Lhcb5 and Lhcb6 are encoded by single genes, Lhcb4 is encoded by three isoforms: Lhcb4.1 and Lhcb4.2, constitutively expressed, and Lhcb4.3 (Lhcb8), which accumulates under prolonged abiotic stress. Lhcb8 substitutes for Lhcb4, preventing Lhcb6 accumulation and resulting in a smaller PSII with high quantum yield. Cryo-electron microscopy reveals that Lhcb8 has a shorter carboxy-terminal domain, lacks two chlorophylls, and interacts more tightly with the PSII core, inducing structural changes in the PSII antenna system, ultimately inhibiting the formation of PSII arrays and favouring plastoquinone diffusion. We suggest that dynamic Lhcb4 vs Lhcb8 expression allows for PSII acclimation to contrasting light conditions, offering the potential for engineering crops with improved light use efficiency.
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