ArticleScientific reports2018
Identification of OsGGR2, a second geranylgeranyl reductase involved in α-tocopherol synthesis in rice.
Article in Scientific reports, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.
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9 citing papers in PubMed, 23 citations in OpenAlex.
- TkSRPP3/4 interactors TkGGR1 and TkLIL3 link plastid-like organelles with isoprenoid metabolism in Taraxacum koksaghyz latex.Plant cell reports · 2025Article
- An alternative splicing caused by a natural variation in BnaC02.VTE4 gene affects vitamin E and glucosinolate content in rapeseed (Brassica napus L.).Plant biotechnology journal · 2025Article
- Vitamin E in Plants: Biosynthesis Pathways, Biofortification Strategies, and Regulatory Dynamics.International journal of molecular sciences · 2025Review
- Effect of Overexpression ofInternational journal of molecular sciences · 2022Article
- Role of Tocochromanols in Tolerance of Cereals to Biotic Stresses: Specific Focus on Pathogenic and Toxigenic Fungal Species.International journal of molecular sciences · 2022Review
- Genome-Wide Investigation of theFrontiers in plant science · 2022Article
- Light Harvesting-like Protein 3 Interacts with Phytoene Synthase and Is Necessary for Carotenoid and Chlorophyll Biosynthesis in Rice.Rice (New York, N.Y.) · 2021Article
- Omics Technologies to Enhance Plant Based Functional Foods: An Overview.Frontiers in genetics · 2021Review
- Strategies for the production of biochemicals in bioenergy crops.Biotechnology for biofuels · 2020Review
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Authors and funding
8 authors at 4 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Tocopherol (Toc) and tocotrienol (T3) are abundant in rice bran. Geranylgeranyl reductase (GGR) is an essential enzyme for Toc production that catalyzes the reduction of geranylgeranyl pyrophosphate and geranylgeranyl-chlorophyll. However, we found that a rice mutant line with inactivated Os02g0744900 (OsGGR1/LYL1/OsChl P) gene produces Toc, suggesting that rice plants may carry another enzyme with GGR activity. Using an RNA-mediated interference technique, we demonstrated that the Os01g0265000 ("OsGGR2") gene product has GGR activity. This result supports the existence of two GGR genes (OsGGR1 and OsGGR2) in rice, in contrast to Arabidopsis thaliana (thale cress) and cyanobacterium Synechocystis that each have only one GGR gene. We also produced rice callus with inactivated OsGGR1 and OsGGR2 that produced T3 but not Toc. Such rice callus could be used as a resource for production of pure T3 for nutraceutical applications.
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