ArticlePlant cell reports2018
M-type thioredoxins are involved in the xanthophyll cycle and proton motive force to alter NPQ under low-light conditions in Arabidopsis.
Article in Plant cell reports, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers.
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23 citing papers in PubMed, 52 citations in OpenAlex.
- Mechanisms underpinning natural variation in non-photochemical quenching kinetics.Biochemical Society transactions · 2025Review
- The xanthophyll cycle balances photoprotection and photosynthetic efficiency in the seawater alga Nannochloropsis oceanica.Plant physiology · 2025Article
- The impact of light and thioredoxins on the plant thiol-disulfide proteome.Plant physiology · 2024Article
- Chitosan induced cold tolerance inFrontiers in plant science · 2024Article
- Current Insights into the Redox Regulation Network in Plant Chloroplasts.Plant & cell physiology · 2023Review
- Metabolic engineering of Escherichia coli for high-level production of violaxanthin.Microbial cell factories · 2023Article
- Article
- Cold acclimation alleviates cold stress-induced PSII inhibition and oxidative damage in tobacco leaves.Plant signaling & behavior · 2022Article
- Adenylates regulate Arabidopsis plastidial thioredoxin activities through the binding of a CBS domain protein.Plant physiology · 2022Article
- Current Knowledge on Mechanisms Preventing Photosynthesis Redox Imbalance in Plants.Antioxidants (Basel, Switzerland) · 2021Review
- Overexpression of thioredoxin m in chloroplasts alters carbon and nitrogen partitioning in tobacco.Journal of experimental botany · 2021Article
- Contemporary proteomic strategies for cysteine redoxome profiling.Plant physiology · 2021Review
- Priming with a Seaweed Extract Strongly Improves Drought Tolerance in Arabidopsis.International journal of molecular sciences · 2021Article
- The Responses of Light Reaction of Photosynthesis to Dynamic Sunflecks in a Typically Shade-Tolerant SpeciesFrontiers in plant science · 2021Article
- Evaluation of CBSX Proteins as Regulators of the Chloroplast Thioredoxin System.Frontiers in plant science · 2021Article
- M-Type Thioredoxins Regulate the PGR5/PGRL1-Dependent Pathway by Forming a Disulfide-Linked Complex with PGRL1.The Plant cell · 2020Article
- Two chloroplast thioredoxin systems differentially modulate photosynthesis in Arabidopsis depending on light intensity and leaf age.The Plant journal : for cell and molecular biology · 2020Article
- The zeaxanthin epoxidase is degraded along with the D1 protein during photoinhibition of photosystem II.Plant direct · 2019Article
- Multilevel regulation of non-photochemical quenching and state transitions by chloroplast NADPH-dependent thioredoxin reductase.Physiologia plantarum · 2019Article
- Chloroplast thioredoxin systems dynamically regulate photosynthesis in plants.The Biochemical journal · 2019Review
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Authors and funding
9 authors at 1 institution in 1 country.
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Abstract
key messageM-type thioredoxins are required to regulate zeaxanthin epoxidase activity and to maintain the steady-state level of the proton motive force, thereby influencing NPQ properties under low-light conditions in Arabidopsis. Non-photochemical quenching (NPQ) helps protect photosynthetic organisms from photooxidative damage via the non-radiative dissipation of energy as heat. Energy-dependent quenching (qE) is a major constituent of NPQ. However, the mechanism underlying the regulation of qE is not well understood. In this study, we demonstrate that the m-type thioredoxins TRX-m1, TRX-m2, and TRX-m4 (TRX-ms) interact with the xanthophyll cycle enzyme zeaxanthin epoxidase (ZE) and are required for maintaining the redox-dependent stabilization of ZE by regulating its intermolecular disulfide bridges. Reduced ZE activity and accumulated zeaxanthin levels were observed under TRX-ms deficiency. Furthermore, concurrent deficiency of TRX-ms resulted in a significant increase in proton motive force (pmf) and acidification of the thylakoid lumen under low irradiance, perhaps due to the significantly reduced ATP synthase activity under TRX-ms deficiency. The increased pmf, combined with acidification of the thylakoid lumen and the accumulation of zeaxanthin, ultimately contribute to the elevated stable qE in VIGS-TRX-m2m4/m1 plants under low-light conditions. Taken together, these results indicate that TRX-ms are involved in regulating NPQ-dependent photoprotection in Arabidopsis.
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