ArticlePlant physiology1998
Dedicated roles of plastid transketolases during the early onset of isoprenoid biogenesis in pepper fruits1.
Article in Plant physiology, 1998. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 43 papers.
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Who cites it
43 citing papers in PubMed, 172 citations in OpenAlex.
- Exploring the Deoxy-D-xylulose-5-phosphate Synthase Gene Family in Tomato (Plants (Basel, Switzerland) · 2023Article
- Integrative Analysis of Long- and Short-Read Transcriptomes Identify the Regulation of Terpenoids Biosynthesis Under Shading Cultivation inFrontiers in genetics · 2022Article
- Bioinformatics study of 1-deoxy-D-xylulose-5-phosphate synthase (DXS) genes in Solanaceae.Molecular biology reports · 2019Article
- Integrative omics of Lonicera japonica Thunb. Flower development unravels molecular changes regulating secondary metabolites.Journal of proteomics · 2019Article
- From Central to Specialized Metabolism: An Overview of Some Secondary Compounds Derived From the Primary Metabolism for Their Role in Conferring Nutritional and Organoleptic Characteristics to Fruit.Frontiers in plant science · 2019Review
- Overexpression ofFrontiers in plant science · 2018Article
- Albino T-DNA tomato mutant reveals a key function of 1-deoxy-D-xylulose-5-phosphate synthase (DXS1) in plant development and survival.Scientific reports · 2017Article
- Molecular breeding of a novel orange-brown tomato fruit with enhanced beta-carotene and chlorophyll accumulation.Hereditas · 2017Article
- Thiamin Diphosphate Activation in 1-Deoxy-d-xylulose 5-Phosphate Synthase: Insights into the Mechanism and Underlying Intermolecular Interactions.The journal of physical chemistry. B · 2016Article
- Proteomic Responses of Switchgrass and Prairie Cordgrass to Senescence.Frontiers in plant science · 2016Article
- Molecular Cloning and Characterization of DXS and DXR Genes in the Terpenoid Biosynthetic Pathway of Tripterygium wilfordii.International journal of molecular sciences · 2015Article
- Comparative genomics reveals candidate carotenoid pathway regulators of ripening watermelon fruit.BMC genomics · 2013Article
- Feedback inhibition of deoxy-D-xylulose-5-phosphate synthase regulates the methylerythritol 4-phosphate pathway.The Journal of biological chemistry · 2013Article
- Expression pattern of fifteen genes of non-mevalonate (MEP) and mevalonate (MVA) pathways in different tissues of endangered medicinal herb Picrorhiza kurroa with respect to picrosides content.Molecular biology reports · 2013Article
- Carotenoid biosynthesis in Arabidopsis: a colorful pathway.The arabidopsis book · 2012Article
- Functional effect of grapevine 1-deoxy-D-xylulose 5-phosphate synthase substitution K284N on Muscat flavour formation.Journal of experimental botany · 2011Article
- Terpene Specialized Metabolism in Arabidopsis thaliana.The arabidopsis book · 2011Article
- A candidate gene association study on muscat flavor in grapevine (Vitis vinifera L.).BMC plant biology · 2010Article
- Identification and characterization of class 1 DXS gene encoding 1-deoxy-D-xylulose-5-phosphate synthase, the first committed enzyme of the MEP pathway from soybean.Molecular biology reports · 2009Article
- The 1-deoxy-D: -xylulose 5-phosphate synthase gene co-localizes with a major QTL affecting monoterpene content in grapevine.TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2009Article
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Authors and funding
5 authors at 3 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Isopentenyl diphosphate (IPP), which is produced from mevalonic acid or other nonmevalonic substrates, is the universal precursor of isoprenoids in nature. Despite the presence of several isoprenoid compounds in plastids, enzymes of the mevalonate pathway leading to IPP formation have never been isolated or identified to our knowledge. We now describe the characterization of two pepper (Capsicum annuum L.) cDNAs, CapTKT1 and CapTKT2, that encode transketolases having distinct and dedicated specificities. CapTKT1 is primarily involved in plastidial pentose phosphate and glycolytic cycle integration, whereas CapTKT2 initiates the synthesis of isoprenoids in plastids via the nonmevalonic acid pathway. From pyruvate and glyceraldehyde-3-phosphate, CapTKT2 catalyzes the formation of 1-deoxy-xylulose-5-phosphate, the IPP precursor. CapTKT1 is almost constitutively expressed during the chloroplast-to-chromoplast transition, whereas CapTKT2 is overexpressed during this period, probably to furnish the IPP necessary for increased carotenoid biosynthesis. Because deoxy-xylulose phosphate is shared by the plastid pathways of isoprenoid, thiamine (vitamin B1), and pyridoxine (vitamin B6) biosynthesis, our results may explain why albino phenotypes usually occur in thiamine-deficient plants.
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