ArticlePlant physiology2011
Glucose-1-phosphate transport into protoplasts and chloroplasts from leaves of Arabidopsis.
Article in Plant physiology, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 39 papers.
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Who cites it
39 citing papers in PubMed, 74 citations in OpenAlex.
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- OsLESV and OsESV1 promote transitory and storage starch biosynthesis to determine rice grain quality and yield.Plant communications · 2024Article
- Starch phosphorylation regulates starch granule morphological homogeneity in Arabidopsis thaliana.Plant physiology · 2024Article
- The Plastidial Glucan Phosphorylase Affects the Maltooligosaccharide Metabolism in Parenchyma Cells of Potato (Solanum tuberosum L.) Tuber Discs.Plant & cell physiology · 2023Article
- Total flavonoids extracted fromFrontiers in pharmacology · 2023Article
- Consumption of Galactose byPathogens (Basel, Switzerland) · 2022Article
- Transcriptome Analysis of Different Sections of Rhizome in Polygonatum sibiricum Red. and Mining Putative Genes Participate in Polysaccharide Biosynthesis.Biochemical genetics · 2022Article
- Starch biosynthesis in guard cells has features of both autotrophic and heterotrophic tissues.Plant physiology · 2022Article
- Effect of Short-Term Cold Treatment on Carbohydrate Metabolism in Potato Leaves.International journal of molecular sciences · 2021Article
- Transcriptome analysis of genes involved in starch biosynthesis in developing Chinese chestnut (Castanea mollissima Blume) seed kernels.Scientific reports · 2021Article
- Specific HProtoplasma · 2020Article
- A Cytosolic Bypass and G6P Shunt in Plants Lacking Peroxisomal Hydroxypyruvate Reductase.Plant physiology · 2019Article
- Influence of starch deficiency on photosynthetic and post-photosynthetic carbon isotope fractionations.Journal of experimental botany · 2019Article
- Starch Synthase 4 and Plastidal Phosphorylase Differentially Affect Starch Granule Number and Morphology.Plant physiology · 2017Article
- Reduced starch granule number per chloroplast in the dpe2/phs1 mutant is dependent on initiation of starch degradation.PloS one · 2017Article
- Starch Turnover and Metabolism during Flower and Early Embryo Development.Plant physiology · 2016Article
- OEP40, a Regulated Glucose-permeable β-Barrel Solute Channel in the Chloroplast Outer Envelope Membrane.The Journal of biological chemistry · 2016Article
- Formation of starch in plant cells.Cellular and molecular life sciences : CMLS · 2016Review
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Authors and funding
5 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Almost all glucosyl transfer reactions rely on glucose-1-phosphate (Glc-1-P) that either immediately acts as glucosyl donor or as substrate for the synthesis of the more widely used Glc dinucleotides, ADPglucose or UDPglucose. In this communication, we have analyzed two Glc-1-P-related processes: the carbon flux from externally supplied Glc-1-P to starch by either mesophyll protoplasts or intact chloroplasts from Arabidopsis (Arabidopsis thaliana). When intact protoplasts or chloroplasts are incubated with [U-(14)C]Glc-1-P, starch is rapidly labeled. Incorporation into starch is unaffected by the addition of unlabeled Glc-6-P or Glc, indicating a selective flux from Glc-1-P to starch. However, illuminated protoplasts incorporate less (14)C into starch when unlabeled bicarbonate is supplied in addition to the (14)C-labeled Glc-1-P. Mesophyll protoplasts incubated with [U-(14)C]Glc-1-P incorporate (14)C into the plastidial pool of adenosine diphosphoglucose. Protoplasts prepared from leaves of mutants of Arabidopsis that lack either the plastidial phosphorylase or the phosphoglucomutase isozyme incorporate (14)C derived from external Glc-1-P into starch, but incorporation into starch is insignificant when protoplasts from a mutant possessing a highly reduced ADPglucose pyrophosphorylase activity are studied. Thus, the path of assimilatory starch biosynthesis initiated by extraplastidial Glc-1-P leads to the plastidial pool of adenosine diphosphoglucose, and at this intermediate it is fused with the Calvin cycle-driven route. Mutants lacking the plastidial phosphoglucomutase contain a small yet significant amount of transitory starch.
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