ArticlePlant physiology2008
Impact of PsbTc on forward and back electron flow, assembly, and phosphorylation patterns of photosystem II in tobacco.
Article in Plant physiology, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Who cites it
10 citing papers in PubMed, 25 citations in OpenAlex.
- Targeted translation inhibition of chloroplast and mitochondrial mRNAs by designer pentatricopeptide repeat proteins.Nucleic acids research · 2025Article
- Jasmonic acid and methyl jasmonate modulate growth, photosynthetic activity and expression of photosystem II subunit genes in Brassica oleracea L.Scientific reports · 2020Article
- The Low Molecular Mass Photosystem II Protein PsbTn Is Important for Light Acclimation.Plant physiology · 2019Article
- Chloroplast Genome Analysis of Resurrection Tertiary RelictFrontiers in plant science · 2017Article
- The Low Molecular Weight Protein PsaI Stabilizes the Light-Harvesting Complex II Docking Site of Photosystem I.Plant physiology · 2016Article
- Molecular interactions of the quinone electron acceptors Q(A), Q(B), and Q(C) in photosystem II as studied by the fragment molecular orbital method.Photosynthesis research · 2014Article
- PsbN is required for assembly of the photosystem II reaction center in Nicotiana tabacum.The Plant cell · 2014Article
- Structural, functional and auxiliary proteins of photosystem II.Photosynthesis research · 2013Review
- Review
- Anaerobiosis induced state transition: a non photochemical reduction of PQ pool mediated by NDH in Arabidopsis thaliana.PloS one · 2012Article
Corrections and comments
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Authors and funding
9 authors at 3 institutions in 3 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Photosystem II (PSII) of oxygen-evolving cyanobacteria, algae, and land plants mediates electron transfer from the Mn(4)Ca cluster to the plastoquinone pool. It is a dimeric supramolecular complex comprising more than 30 subunits per monomer, of which 16 are bitopic or peripheral, low-molecular-weight components. Directed inactivation of the plastid gene encoding the low-molecular-weight peptide PsbTc in tobacco (Nicotiana tabacum) does not prevent photoautotrophic growth. Mutant plants appear normal green, and levels of PSII proteins are not affected. Yet, PSII-dependent electron transport, stability of PSII dimers, and assembly of PSII light-harvesting complexes (LHCII) are significantly impaired. PSII light sensitivity is moderately increased and recovery from photoinhibition is delayed, leading to faster D1 degradation in DeltapsbTc under high light. Thermoluminescence emission measurements revealed alterations of midpoint potentials of primary/secondary electron-accepting plastoquinone of PSII interaction. Only traces of CP43 and no D1/D2 proteins are phosphorylated, presumably due to structural changes of PSII in DeltapsbTc. In striking contrast to the wild type, LHCII in the mutant is phosphorylated in darkness, consistent with its association with PSI, indicating an increased pool of reduced plastoquinone in the dark. Finally, our data suggest that the secondary electron-accepting plastoquinone of PSII site, the properties of which are altered in DeltapsbTc, is required for oxidation of reduced plastoquinone in darkness in an oxygen-dependent manner. These data present novel aspects of plastoquinone redox regulation, chlororespiration, and redox control of LHCII phosphorylation.
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