ArticlePlant physiology1995
Induction of Hexose-Phosphate Translocator Activity in Spinach Chloroplasts.
Article in Plant physiology, 1995. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers.
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Who cites it
22 citing papers in PubMed, 70 citations in OpenAlex.
- The novel chloroplast glucose transporter pGlcT2 affects adaptation to extended light periods.The Journal of biological chemistry · 2023Article
- Triose phosphate export from chloroplasts and cellular sugar content regulate anthocyanin biosynthesis during high light acclimation.Plant communications · 2023Article
- Transcriptional Regulation of the Glucose-6-Phosphate/Phosphate Translocator 2 Is Related to Carbon Exchange Across the Chloroplast Envelope.Frontiers in plant science · 2019Article
- Arabidopsis Responds to Alternaria alternata Volatiles by Triggering Plastid Phosphoglucose Isomerase-Independent Mechanisms.Plant physiology · 2016Article
- Article
- Glucose-1-phosphate transport into protoplasts and chloroplasts from leaves of Arabidopsis.Plant physiology · 2011Article
- Identification and characterization of a null-activity mutant containing a cryptic pre-mRNA splice site for cytosolic fructose-1,6-bisphosphatase in Flaveria linearis.Plant molecular biology · 2010Article
- Ubiquitous distribution and different subcellular localization of sorbitol dehydrogenase in fruit and leaf of apple.Journal of experimental botany · 2009Article
- Transgenic tobacco plants overexpressing chloroplastic ferredoxin-NADP(H) reductase display normal rates of photosynthesis and increased tolerance to oxidative stress.Plant physiology · 2007Article
- In vivo respiratory metabolism of illuminated leaves.Plant physiology · 2005Article
- The Arabidopsis plastidic glucose 6-phosphate/phosphate translocator GPT1 is essential for pollen maturation and embryo sac development.The Plant cell · 2005Article
- Molecular physiological analysis of the two plastidic ATP/ADP transporters from Arabidopsis.Plant physiology · 2004Article
- Plastidial alpha-glucan phosphorylase is not required for starch degradation in Arabidopsis leaves but has a role in the tolerance of abiotic stress.Plant physiology · 2004Article
- Compartmentation of ATP:citrate lyase in plants.Plant physiology · 2000Article
- Molecular characterization of a carbon transporter in plastids from heterotrophic tissues: the glucose 6-phosphate/phosphate antiporter.The Plant cell · 1998Article
- ADP-glucose drives starch synthesis in isolated maize endosperm amyloplasts: characterization of starch synthesis and transport properties across the amyloplast envelope.The Biochemical journal · 1997Article
- Evidence for two types of phosphate translocators in sweet-pepper (Capsicum annum L.) fruit chromoplasts.The Biochemical journal · 1996Article
- Starch degradation in chloroplasts isolated from C3 or CAM (crassulacean acid metabolism)-induced Mesembryanthemum crystallinum L.The Biochemical journal · 1996Article
- Patterns of Carbon Partitioning in Leaves of Crassulacean Acid Metabolism Species during Deacidification.Plant physiology · 1996Article
- Unidirectional transport of orthophosphate across the envelope of isolated cauliflower-bud amyloplasts.Planta · 1996Article
Corrections and comments
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Authors and funding
3 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Many environmental and experimental conditions lead to accumulation of carbohydrates in photosynthetic tissues. This situation is typically associated with major changes in the mRNA and protein complement of the cell, including metabolic repression of photosynthetic gene expression, which can be induced by feeding carbohydrates directly to leaves. In this study we examined the carbohydrate transport properties of chloroplasts isolated from spinach (Spinacia oleracea L.) leaves fed with glucose for several days. These chloroplasts contain large quantities of starch, can perform photosynthetic 3-phosphoglycerate reduction, and surprisingly also have the ability to perform starch synthesis from exogenous glucose-6-phosphate (Glc-6-P) both in the light and in darkness, similarly to heterotrophic plastids. Glucose-1-phosphate does not act as an exogenous precursor for starch synthesis. Light, ATP, and 3-phosphoglyceric acid stimulate Glc-6-P-dependent starch synthesis. Short-term uptake experiments indicate that a novel Glc-6-P-translocator capacity is present in the envelope membrane, exhibiting an apparent Km of 0.54 mM and a Vmax of 2.9 [mu]mol Glc-6-P mg-1 chlorophyll h-1. Similar results were obtained with chloroplasts isolated from glucose-fed potato leaves and from water-stressed spinach leaves. The generally held view that sugar phosphates transported by chloroplasts are confined to triose phosphates is not supported by these results. A physiological role for a Glc-6-P translocator in green plastids is presented with reference to the source/sink function of the leaf.
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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.