ArticlePlant physiology2014
Maintenance of Chloroplast Structure and Function by Overexpression of the Rice MONOGALACTOSYLDIACYLGLYCEROL SYNTHASE Gene Leads to Enhanced Salt Tolerance in Tobacco.
Article in Plant physiology, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 45 papers.
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Who cites it
45 citing papers in PubMed, 105 citations in OpenAlex.
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- Nitric oxide delays yellowing by regulating chloroplast membrane lipid metabolism and the ascorbate-glutathione cycle in postharvest broccolini.Frontiers in nutrition · 2026Article
- Plastids in a Pinch: Coordinating Stress and Developmental Responses Through Retrograde Signalling.Plant, cell & environment · 2025Review
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- Developing a media formulation to sustainFrontiers in bioengineering and biotechnology · 2025Article
- The role of lignin in 17β-estradiol biodegradation: insights from cellular characteristics and lipidomics.Microbial cell factories · 2024Article
- OsMGD1-Mediated Membrane Lipid Remodeling Improves Salt Tolerance in Rice.Plants (Basel, Switzerland) · 2024Article
- Plant-Growth-Promoting Rhizobacteria Modulate Carbohydrate Metabolism in Connection with Host Plant Defense Mechanism.International journal of molecular sciences · 2024Review
- Article
- LC-ESI-MS/MS Analysis of Sulfolipids and Galactolipids in Green and Red Lettuce (International journal of molecular sciences · 2023Article
- Drought and heat stress mediated activation of lipid signaling in plants: a critical review.Frontiers in plant science · 2023Review
- Photosynthetic machinery under salinity stress: Trepidations and adaptive mechanisms.Photosynthetica · 2023Review
- Physiological and lipidomic response of exogenous choline chloride alleviating salt stress injury in Kentucky bluegrass (Frontiers in plant science · 2023Article
- The Plant Metabolic Changes and the Physiological and Signaling Functions in the Responses to Abiotic Stress.Methods in molecular biology (Clifton, N.J.) · 2023Article
- Does Sulfoquinovosyl Diacylglycerol Synthase OsSQD1 Affect the Composition of Lipids in Rice Phosphate-Deprived Root?International journal of molecular sciences · 2022Article
- Lipidomics-Assisted GWAS (lGWAS) Approach for Improving High-Temperature Stress Tolerance of Crops.International journal of molecular sciences · 2022Review
- Enhanced Adaptability to Limited Water Supply Regulated by Diethyl Aminoethyl Hexanoate (DA-6) Associated With Lipidomic Reprogramming in Two White Clover Genotypes.Frontiers in plant science · 2022Article
- Comprehensive evaluation of physiological traits under nitrogen stress and participation of linolenic acid in nitrogen-deficiency response in wheat seedlings.BMC plant biology · 2020Article
Corrections and comments
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Authors and funding
12 authors at 7 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
In plants, the galactolipids monogalactosyldiacylglycerol (MGDG) and digalactodiacylglycerol (DGDG) are major constituents of photosynthetic membranes in chloroplasts. One of the key enzymes for the biosynthesis of these galactolipids is MGDG synthase (MGD). To investigate the role of MGD in the plant's response to salt stress, we cloned an MGD gene from rice (Oryza sativa) and generated tobacco (Nicotiana tabacum) plants overexpressing OsMGD. The MGD activity in OsMGD transgenic plants was confirmed to be higher than that in the wild-type tobacco cultivar SR1. Immunoblot analysis indicated that OsMGD was enriched in the outer envelope membrane of the tobacco chloroplast. Under salt stress, the transgenic plants exhibited rapid shoot growth and high photosynthetic rate as compared with the wild type. Transmission electron microscopy observation showed that the chloroplasts from salt-stressed transgenic plants had well-developed thylakoid membranes and properly stacked grana lamellae, whereas the chloroplasts from salt-stressed wild-type plants were fairly disorganized and had large membrane-free areas. Under salt stress, the transgenic plants also maintained higher chlorophyll levels. Lipid composition analysis showed that leaves of transgenic plants consistently contained significantly higher MGDG (including 18:3-16:3 and 18:3-18:3 species) and DGDG (including 18:3-16:3, 18:3-16:0, and 18:3-18:3 species) contents and higher DGDG-MGDG ratios than the wild type did under both control and salt stress conditions. These results show that overexpression of OsMGD improves salt tolerance in tobacco and that the galactolipids MGDG and DGDG play an important role in the regulation of chloroplast structure and function in the plant salt stress response.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.