ArticleThe Plant cell2008
Tocopherols modulate extraplastidic polyunsaturated fatty acid metabolism in Arabidopsis at low temperature.
Article in The Plant cell, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 47 papers.
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47 citing papers in PubMed, 122 citations in OpenAlex.
- Enhancing antioxidant defense systems and regulating fatty acid unsaturation: Salicylic acid-mediated alleviation of low-temperature stress in Pitaya seedlings.BMC plant biology · 2025Article
- Vitamin E in Plants: Biosynthesis Pathways, Biofortification Strategies, and Regulatory Dynamics.International journal of molecular sciences · 2025Review
- Heat stress resistance inFrontiers in plant science · 2025Article
- Molecular characterization of homogentisate phytyltransferase and methylphytylbenzoquinol methyltransferase genes from olive fruit with regard to the tocopherol content and the response to abiotic stresses.Frontiers in plant science · 2025Article
- Comparative Genome-Wide Identification of thePlants (Basel, Switzerland) · 2024Article
- Transcriptional and protein structural characterization of homogentisate phytyltransferase genes in barley, wheat, and oat.BMC plant biology · 2023Article
- Effect of Overexpression ofInternational journal of molecular sciences · 2022Article
- Transcriptome and Metabolome Analyses Provide Insights Into the Composition and Biosynthesis of Grassy Aroma Volatiles in White-Fleshed Pitaya.ACS omega · 2022Article
- Antioxidant and Signaling Role of Plastid-Derived Isoprenoid Quinones and Chromanols.International journal of molecular sciences · 2021Review
- Chemical Composition and Plant Growth ofMolecules (Basel, Switzerland) · 2020Article
- Unraveling Hidden Components of the Chloroplast Envelope Proteome: Opportunities and Limits of Better MS Sensitivity.Molecular & cellular proteomics : MCP · 2019Article
- Effects of chlorine dioxide on the germination, oxidative metabolism and growth of barley seedlings (Hordeum vulgare L.).Scientific reports · 2019Article
- Reporter-based forward genetic screen to identify bundle sheath anatomy mutants in A. thaliana.The Plant journal : for cell and molecular biology · 2019Article
- Beyond pathways: genetic dissection of tocopherol content in maize kernels by combining linkage and association analyses.Plant biotechnology journal · 2018Article
- Rice tocopherol deficiency 1 encodes a homogentisate phytyltransferase essential for tocopherol biosynthesis and plant development in rice.Plant cell reports · 2018Article
- Effect of salt stress on fatty acid and α-tocopherol metabolism in two desert shrub species.Planta · 2018Article
- Association Mapping Analysis of Fatty Acid Content in Different Ecotypic Rapeseed Using mrMLM.Frontiers in plant science · 2018Article
- Tocopherol levels in different mango varieties correlate with3 Biotech · 2017Article
- Article
- Heteroblastic Development of Transfer Cells Is Controlled by the microRNA miR156/SPL Module.Plant physiology · 2017Article
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5 authors at 3 institutions in 2 countries.
Funding
Abstract
Tocopherols (vitamin E) are synthesized in plastids and have long been assumed to have essential functions restricted to these organelles. We previously reported that the vitamin e-deficient2 (vte2) mutant of Arabidopsis thaliana is defective in transfer cell wall development and photoassimilate transport at low temperature (LT). Here, we demonstrate that LT-treated vte2 has a distinct composition of polyunsaturated fatty acids (PUFAs): lower levels of linolenic acid (18:3) and higher levels of linoleic acid (18:2) compared with the wild type. Enhanced 18:3 oxidation was not involved, as indicated by the limited differences in oxidized lipid species between LT-treated vte2 and the wild type and by a lack of impact on the LT-induced vte2 phenotype in a vte2 fad3 fad7 fad8 quadruple mutant deficient in 18:3. PUFA changes in LT-treated vte2 occur primarily in phospholipids due to reduced conversion of dienoic to trienoic fatty acids in the endoplasmic reticulum (ER) pathway. Introduction of the ER fatty acid desaturase mutation, fad2, and to a lesser extent the plastidic fad6 mutation into the vte2 background suppressed the LT-induced vte2 phenotypes, including abnormal transfer cell wall development. These results provide biochemical and genetic evidence that plastid-synthesized tocopherols modulate ER PUFA metabolism early in the LT adaptation response of Arabidopsis.
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