ArticleThe Plant cell2016
Reduced Biosynthesis of Digalactosyldiacylglycerol, a Major Chloroplast Membrane Lipid, Leads to Oxylipin Overproduction and Phloem Cap Lignification in Arabidopsis.
Article in The Plant cell, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 33 papers.
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Who cites it
33 citing papers in PubMed, 71 citations in OpenAlex.
- Size of chloroplasts in Arabidopsis mesophyll cells affects jasmonate biosynthesis.Plant biology (Stuttgart, Germany) · 2026Article
- Crop growth model-enabled genetic mapping of biomass accumulation dynamics in photoperiod-sensitive sorghum.The plant genome · 2025Article
- Review
- Plasticity of the Arabidopsis leaf lipidome and proteome in response to pathogen infection and heat stress.Plant physiology · 2025Article
- The role of OsDGD1 in phosphate starvation: How lipid remodeling regulates jasmonic acid and root development in rice.Plant physiology · 2024Article
- OsMGD1-Mediated Membrane Lipid Remodeling Improves Salt Tolerance in Rice.Plants (Basel, Switzerland) · 2024Article
- Genome wide association study reveals new genes for resistance to striped stem borer in rice (Frontiers in plant science · 2024Article
- Integrated Analysis of Metabolome and Transcriptome Revealed Different Regulatory Networks of Metabolic Flux in Tea Plants [International journal of molecular sciences · 2023Article
- FAR-RED INSENSITIVE 219 and phytochrome B corepress shade avoidance via modulating nuclear speckle formation.Plant physiology · 2023Article
- Loss of Chloroplast GNAT Acetyltransferases Results in Distinct Metabolic Phenotypes in Arabidopsis.Plant & cell physiology · 2023Article
- Pepper mild mottle virus coat protein interacts with pepper chloroplast outer envelope membrane protein OMP24 to inhibit antiviral immunity in plants.Horticulture research · 2023Article
- DELAY OF GERMINATION 1, the Master Regulator of Seed Dormancy, Integrates the Regulatory Network of Phytohormones at the Transcriptional Level to Control Seed Dormancy.Current issues in molecular biology · 2022Article
- Organelles and phytohormones: a network of interactions in plant stress responses.Journal of experimental botany · 2022Review
- Alterations of Content and Composition of Individual Sulfolipids, and Change of Fatty Acids Profile of Galactolipids in Lettuce Plants (Plants (Basel, Switzerland) · 2022Article
- Identification and Transcriptome Analysis of Genes Related to Membrane Lipid Regulation in Sweet Sorghum under Salt Stress.International journal of molecular sciences · 2022Article
- Combined analysis of lipidomics and transcriptomics revealed the key pathways and genes of lipids in light-sensitive albino tea plant (Frontiers in plant science · 2022Article
- Trigalactosyldiacylglycerol 3 protein orthologs are required for basal disease resistance inPlant biotechnology (Tokyo, Japan) · 2021Article
- Plant Acyl-CoA-Binding Proteins-Their Lipid and Protein Interactors in Abiotic and Biotic Stresses.Cells · 2021Review
- Hormonal impact on photosynthesis and photoprotection in plants.Plant physiology · 2021Review
- Review
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Authors and funding
5 authors at 2 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
DIGALACTOSYLDIACYLGLYCEROL SYNTHASE1 (DGD1) is a chloroplast outer membrane protein responsible for the biosynthesis of the lipid digalactosyldiacylglycerol (DGDG) from monogalactosyldiacylglycerol (MGDG). The Arabidopsis thaliana dgd1 mutants have a greater than 90% reduction in DGDG content, reduced photosynthesis, and altered chloroplast morphology. However, the most pronounced visible phenotype is the extremely short inflorescence stem, but how deficient DGDG biosynthesis causes this phenotype is unclear. We found that, in dgd1 mutants, phloem cap cells were lignified and jasmonic acid (JA)-responsive genes were highly upregulated under normal growth conditions. The coronative insensitive1 dgd1 and allene oxide synthase dgd1 double mutants no longer exhibited the short inflorescence stem and lignification phenotypes but still had the same lipid profile and reduced photosynthesis as dgd1 single mutants. Hormone and lipidomics analyses showed higher levels of JA, JA-isoleucine, 12-oxo-phytodienoic acid, and arabidopsides in dgd1 mutants. Transcript and protein level analyses further suggest that JA biosynthesis in dgd1 is initially activated through the increased expression of genes encoding 13-lipoxygenases (LOXs) and phospholipase A-Iγ3 (At1g51440), a plastid lipase with a high substrate preference for MGDG, and is sustained by further increases in LOX and allene oxide cyclase mRNA and protein levels. Our results demonstrate a link between the biosynthesis of DGDG and JA.
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