ArticlePlant physiology2004
A mutant of Arabidopsis lacking the triose-phosphate/phosphate translocator reveals metabolic regulation of starch breakdown in the light.
Article in Plant physiology, 2004. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 66 papers.
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Who cites it
66 citing papers in PubMed, 121 citations in OpenAlex.
- Disruption of starch biosynthesis and triacylglycerol degradation impairs growth but improves photosynthesis in Arabidopsis.The New phytologist · 2026Article
- Photoperiod, light intensity, and vernalization regulate flowering in the novel fragrant Chrysanthemum 'Xiaokuixiang'.Frontiers in plant science · 2026Article
- Steady-stateFrontiers in plant science · 2026Article
- Not just Rubisco: integrated strategies to overcome the biochemical limitations of CFrontiers in plant science · 2026Review
- Effects of suppression of phosphate transporter 4;4 on COJournal of plant research · 2025Article
- Comparative phenotypic, physiological, and transcriptomic responses to drought and recovery in two Fraxinus species.BMC plant biology · 2025Article
- Duckweed: a starch-hyperaccumulating plant under cultivation with a combination of nutrient limitation and elevated COFrontiers in plant science · 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
- Genetically manipulated chloroplast stromal phosphate levels alter photosynthetic efficiency.Plant physiology · 2024Article
- A matter of quantity: The effect of chloroplast stromal phosphate levels on photosynthetic efficiency.Plant physiology · 2024Article
- Source-sink synergy is the key unlocking sweet potato starch yield potential.Nature communications · 2024Article
- Genetic improvement of phosphate-limited photosynthesis for high yield in rice.Proceedings of the National Academy of Sciences of the United States of America · 2024Article
- Flowering and Runnering of Seasonal Strawberry under Different Photoperiods Are Affected by Intensity of Supplemental or Night-Interrupting Blue Light.Plants (Basel, Switzerland) · 2024Article
- Transcriptomic and physiological responses ofFrontiers in plant science · 2024Article
- Three consecutive cytosolic glycolysis enzymes modulate autophagic flux.Plant physiology · 2023Article
- Chlamydomonas mutants lacking chloroplast TRIOSE PHOSPHATE TRANSPORTER3 are metabolically compromised and light sensitive.The Plant cell · 2023Article
- The diversity of substrates for plant respiration and how to optimize their use.Plant physiology · 2023Review
- Triose phosphate export from chloroplasts and cellular sugar content regulate anthocyanin biosynthesis during high light acclimation.Plant communications · 2023Article
- Photoacclimation and entrainment of photosynthesis by fluctuating light varies according to genotype inFrontiers in plant science · 2023Article
6 more citing papers are in PubMed but not listed here.
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
4 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The chloroplast envelope triose-phosphate/phosphate translocator (TPT) is responsible for carbohydrate export during photosynthesis. Using measurements of carbohydrates, partitioning of assimilated 14CO2, photosynthetic gas exchange, and chlorophyll fluorescence, we show that a mutant of Arabidopsis lacking the TPT increases synthesis of starch compared to the wild type, thereby compensating for a deficiency in its ability to export triose-phosphate from the chloroplast. However, during growth under high light, the capacity for starch synthesis becomes limiting so that the chloroplastic phosphate pool is depleted, resulting in a restriction on electron transport, a reduction in the rate of photosynthesis, and slowed plant growth. Under the same conditions but not under low light, we observe release of 14C label from starch, indicating that its synthesis and degradation occur simultaneously in the light. The induction of starch turnover in the mutant specifically under high light conditions leads us to conclude that it is regulated by one or more metabolic signals, which arise as a result of phosphate limitation of photosynthesis.
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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.