ArticlePlant physiology2002
The plastidic pentose phosphate translocator represents a link between the cytosolic and the plastidic pentose phosphate pathways in plants.
Article in Plant physiology, 2002. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 77 papers.
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Who cites it
77 citing papers in PubMed, 188 citations in OpenAlex.
- Carbon Dioxide Release During Photosynthesis: Connecting Gas Exchange Behavior With Biochemistry.Plant, cell & environment · 2026Review
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- Physiological and Molecular Responses of Seed Germination to Irrigating-Sowing in Drought-Stressed Foxtail Millet (Plants (Basel, Switzerland) · 2025Article
- The effects of photosynthetic rate on respiration in light, starch/sucrose partitioning, and other metabolic fluxes within photosynthesis.Scientific reports · 2025Article
- Photosynthetic Electron Flows and Networks of Metabolite Trafficking to Sustain Metabolism in Photosynthetic Systems.Plants (Basel, Switzerland) · 2024Review
- Lighting the way: Compelling open questions in photosynthesis research.The Plant cell · 2024Article
- Phosphorus uptake, transport, and signaling in woody and model plants.Forestry research · 2024Review
- Molecular Mechanisms of Polyphenols in Management of Skin Aging.Current aging science · 2024Review
- Transcriptomic and Metabolomic Profiling Reveals the Variations in Carbohydrate Metabolism between Two Blueberry Cultivars.International journal of molecular sciences · 2023Article
- Mechanisms of metabolic adaptation in the duckweed Lemna gibba: an integrated metabolic, transcriptomic and flux analysis.BMC plant biology · 2023Article
- Chlamydomonas mutants lacking chloroplast TRIOSE PHOSPHATE TRANSPORTER3 are metabolically compromised and light sensitive.The Plant cell · 2023Article
- Triose phosphate export from chloroplasts and cellular sugar content regulate anthocyanin biosynthesis during high light acclimation.Plant communications · 2023Article
- High atmospheric COThe New phytologist · 2022Article
- Reimport of carbon from cytosolic and vacuolar sugar pools into the Calvin-Benson cycle explains photosynthesis labeling anomalies.Proceedings of the National Academy of Sciences of the United States of America · 2022Article
- Review
- Isotope ratio-based quantification of carbon assimilation highlights the role of plastidial isoprenoid precursor availability in photosynthesis.Plant methods · 2021Article
- Source of 12C in Calvin-Benson cycle intermediates and isoprene emitted from plant leaves fed with 13CO2.The Biochemical journal · 2020Article
- The Arabidopsis Plastidial Glucose-6-Phosphate Transporter GPT1 is Dually Targeted to Peroxisomes via the Endoplasmic Reticulum.The Plant cell · 2020Article
- A Kinase and a Glycosylase Catabolize Pseudouridine in the Peroxisome to Prevent Toxic Pseudouridine Monophosphate Accumulation.The Plant cell · 2020Article
- Substrate specificity of plastid phosphate transporters in a non-photosynthetic diatom and its implication in evolution of red alga-derived complex plastids.Scientific reports · 2020Article
17 more citing papers are in PubMed but not listed here.
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5 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Plastids are the site of the reductive and the oxidative pentose phosphate pathways, which both generate pentose phosphates as intermediates. A plastidic transporter from Arabidopsis has been identified that is able to transport, in exchange with inorganic phosphate or triose phosphates, xylulose 5-phosphate (Xul-5-P) and, to a lesser extent, also ribulose 5-phosphate, but does not accept ribose 5-phosphate or hexose phosphates as substrates. Under physiological conditions, Xul-5-P would be the preferred substrate. Therefore, the translocator was named Xul-5-P/phosphate translocator (XPT). The XPT shares only approximately 35% to 40% sequence identity with members of both the triose phosphate translocator and the phosphoenolpyruvate/phosphate translocator classes, but a higher identity of approximately 50% to glucose 6-phosphate/phosphate translocators. Therefore, it represents a fourth group of plastidic phosphate translocators. Database analysis revealed that plant cells contain, in addition to enzymes of the oxidative branch of the oxidative pentose phosphate pathway, ribose 5-phosphate isomerase and ribulose 5-phosphate epimerase in both the cytosol and the plastids, whereas the transketolase and transaldolase converting the produced pentose phosphates to triose phosphates and hexose phosphates are probably solely confined to plastids. It is assumed that the XPT function is to provide the plastidic pentose phosphate pathways with cytosolic carbon skeletons in the form of Xul-5-P, especially under conditions of a high demand for intermediates of the cycles.
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