ArticleFrontiers in plant science2014
Role of plastoglobules in metabolite repair in the tocopherol redox cycle.
Article in Frontiers in plant science, 2014. 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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Who cites it
23 citing papers in PubMed, 52 citations in OpenAlex.
- Microalgae as a source of α-tocopherol: phylogenetic and technological factors.World journal of microbiology & biotechnology · 2026Review
- Review
- Cyanoglobule lipid droplets are a stress-responsive metabolic compartment of cyanobacteria and the progenitor of plant plastoglobules.The Plant cell · 2025Article
- Article
- Rapid Analysis forMass spectrometry (Tokyo, Japan) · 2024Article
- Transcriptional and protein structural characterization of homogentisate phytyltransferase genes in barley, wheat, and oat.BMC plant biology · 2023Article
- Nutritional Enrichment of Plant Leaves by Combining Genes Promoting Tocopherol Biosynthesis and Storage.Metabolites · 2023Article
- Fibrillin2 in chloroplast plastoglobules participates in photoprotection and jasmonate-induced senescence.Plant physiology · 2022Article
- Article
- Environmentally driven transcriptomic and metabolic changes leading to color differences in "Golden Reinders" apples.Frontiers in plant science · 2022Article
- Bean and Pea Plastoglobules Change in Response to Chilling Stress.International journal of molecular sciences · 2021Article
- Age-dependent increase in α-tocopherol and phytosterols in maize leaves exposed to elevated ozone pollution.Plant direct · 2021Article
- Low UV-C stress modulatesBiotechnology for biofuels · 2020Article
- Plastoquinone homoeostasis byCommunications biology · 2019Article
- Reactive oxygen species, oxidative signaling and the regulation of photosynthesis.Environmental and experimental botany · 2018Review
- Beyond pathways: genetic dissection of tocopherol content in maize kernels by combining linkage and association analyses.Plant biotechnology journal · 2018Article
- Essential role for phytol kinase and tocopherol in tolerance to combined light and temperature stress in tomato.Journal of experimental botany · 2017Article
- Carnosic Acid and Carnosol, Two Major Antioxidants of Rosemary, Act through Different Mechanisms.Plant physiology · 2017Article
- Polyprenols Are Synthesized by a PlastidialThe Plant cell · 2017Article
- Down-regulation of tomato PHYTOL KINASE strongly impairs tocopherol biosynthesis and affects prenyllipid metabolism in an organ-specific manner.Journal of experimental botany · 2016Article
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Authors and funding
4 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Plants are exposed to ever changing light environments and continuously forced to adapt. Excessive light intensity leads to the production of reactive oxygen species that can have deleterious effects on photosystems and thylakoid membranes. To limit damage, plants increase the production of membrane soluble antioxidants such as tocopherols. Here, untargeted lipidomics after high light treatment showed that among hundreds of lipid compounds alpha-tocopherol is the most strongly induced, underscoring its importance as an antioxidant. As part of the antioxidant mechanism, α-tocopherol undergoes a redox cycle involving oxidative opening of the chromanol ring. The only enzyme currently known to participate in the cycle is tocopherol cyclase (VTE1, At4g32770), that re-introduces the chromanol ring of α-tocopherol. By mutant analysis, we identified the NAD(P)H-dependent quinone oxidoreductase (NDC1, At5g08740) as a second enzyme implicated in this cycle. NDC1 presumably acts through the reduction of quinone intermediates preceding cyclization by VTE1. Exposure to high light also triggered far-ranging changes in prenylquinone composition that we dissect herein using null mutants and lines overexpressing the VTE1 and NDC1 enzymes.
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