ArticlePlant physiology2016
Comparative Analysis of Light-Harvesting Antennae and State Transition in chlorina and cpSRP Mutants.
Article in Plant physiology, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.
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Who cites it
9 citing papers in PubMed.
- Nudix hydrolase 23 post-translationally regulates carotenoid biosynthesis in plants.The Plant cell · 2024Article
- Shading-Dependent Greening Process of the Leaves in the Light-Sensitive Albino Tea Plant 'Huangjinya': Possible Involvement of the Light-Harvesting Complex II Subunit of Photosystem II in the Phenotypic Characteristic.International journal of molecular sciences · 2023Article
- Impact of Porphyrin Binding to GENOMES UNCOUPLED 4 on Tetrapyrrole BiosynthesisFrontiers in plant science · 2022Article
- Functional redox links between lumen thiol oxidoreductase1 and serine/threonine-protein kinase STN7.Plant physiology · 2021Article
- Article
- Compensation Mechanism of the Photosynthetic Apparatus inInternational journal of molecular sciences · 2020Article
- Chloroplast Acetyltransferase NSI Is Required for State Transitions inThe Plant cell · 2018Article
- Chloroplast SRP43 acts as a chaperone for glutamyl-tRNA reductase, the rate-limiting enzyme in tetrapyrrole biosynthesis.Proceedings of the National Academy of Sciences of the United States of America · 2018Article
- Physiological and transcriptomic analyses of a yellow-green mutant with high photosynthetic efficiency in wheat (Triticum aestivum L.).Functional & integrative genomics · 2018Article
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Authors and funding
2 authors.
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Abstract
State transitions in photosynthesis provide for the dynamic allocation of a mobile fraction of light-harvesting complex II (LHCII) to photosystem II (PSII) in state I and to photosystem I (PSI) in state II. In the state I-to-state II transition, LHCII is phosphorylated by STN7 and associates with PSI to favor absorption cross-section of PSI. Here, we used Arabidopsis (Arabidopsis thaliana) mutants with defects in chlorophyll (Chl) b biosynthesis or in the chloroplast signal recognition particle (cpSRP) machinery to study the flexible formation of PS-LHC supercomplexes. Intriguingly, we found that impaired Chl b biosynthesis in chlorina1-2 (ch1-2) led to preferentially stabilized LHCI rather than LHCII, while the contents of both LHCI and LHCII were equally depressed in the cpSRP43-deficient mutant (chaos). In view of recent findings on the modified state transitions in LHCI-deficient mutants (Benson et al., 2015), the ch1-2 and chaos mutants were used to assess the influence of varying LHCI/LHCII antenna size on state transitions. Under state II conditions, LHCII-PSI supercomplexes were not formed in both ch1-2 and chaos plants. LHCII phosphorylation was drastically reduced in ch1-2, and the inactivation of STN7 correlates with the lack of state transitions. In contrast, phosphorylated LHCII in chaos was observed to be exclusively associated with PSII complexes, indicating a lack of mobile LHCII in chaos Thus, the comparative analysis of ch1-2 and chaos mutants provides new evidence for the flexible organization of LHCs and enhances our understanding of the reversible allocation of LHCII to the two photosystems.
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