ArticlePlant physiology2014
Functions of multiple genes encoding ADP-glucose pyrophosphorylase subunits in maize endosperm, embryo, and leaf.
Article in Plant physiology, 2014. 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, 85 citations in OpenAlex.
- Combined linkage mapping and association analysis reveal the genetic control of starch content in maize kernel.TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2026Article
- Genetic coupling of leaf and kernel-related traits shapes drought adaptation in maize.The Plant journal : for cell and molecular biology · 2026Article
- Expression and interaction of AGPase subunits reveal functional enzyme complexes in barley.Frontiers in plant science · 2025Article
- ADP-glucose pyrophosphorylase gene family in soybean and implications in drought stress tolerance.Genes & genomics · 2024Article
- OsIPK1 frameshift mutations disturb phosphorus homeostasis and impair starch synthesis during grain filling in rice.Plant molecular biology · 2024Article
- Exploring the phosphorus-starch content balance mechanisms in maize grains using GWAS population and transcriptome data.TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2024Article
- Genome-wide association analysis and transgenic characterization for amylose content regulating gene in tuber of Dioscorea zingiberensis.BMC plant biology · 2024Article
- Serine 31 Phosphorylation-Driven Regulation of AGPase Activity: Potential Implications for Enhanced Starch Yields in Crops.International journal of molecular sciences · 2023Article
- Characterization and Transcriptome Analysis of Maize Small-Kernel MutantPlants (Basel, Switzerland) · 2023Article
- Proteome-wide analyses reveal diverse functions of protein acetylation and succinylation modifications in fast growing stolons of bermudagrass (Cynodon dactylon L.).BMC plant biology · 2022Article
- Cassava shrunken-2 homolog MeAPL3 determines storage root starch and dry matter content and modulates storage root postharvest physiological deterioration.Plant molecular biology · 2022Article
- Structure, function, and evolution of plant ADP-glucose pyrophosphorylase.Plant molecular biology · 2022Review
- Characterization of Various Subunit Combinations of ADP-Glucose Pyrophosphorylase in Duckweed (BioMed research international · 2022Article
- Whole-genome variation of transposable element insertions in a maize diversity panel.G3 (Bethesda, Md.) · 2021Article
- Starch biosynthesis in cereal endosperms: An updated review over the last decade.Plant communications · 2021Review
- ADP-Glucose Pyrophosphorylase Is Located in the Plastid and Cytosol in the Pulp of Tropical Banana Fruit (Musa acuminata).Plant foods for human nutrition (Dordrecht, Netherlands) · 2020Article
- Genetic and genomic analysis of the seed-filling process in maize based on a logistic model.Heredity · 2020Article
- MaizeThe Journal of cell biology · 2019Article
- Integrated transcriptome, small RNA, and degradome analysis reveals the complex network regulating starch biosynthesis in maize.BMC genomics · 2019Article
- Stability Analysis of Kernel Quality Traits in Exotic-Derived Doubled Haploid Maize Lines.The plant genome · 2019Article
Corrections and comments
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Authors and funding
3 authors at 1 institution in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
ADP-glucose pyrophosphorylase (AGPase) provides the nucleotide sugar ADP-glucose and thus constitutes the first step in starch biosynthesis. The majority of cereal endosperm AGPase is located in the cytosol with a minor portion in amyloplasts, in contrast to its strictly plastidial location in other species and tissues. To investigate the potential functions of plastidial AGPase in maize (Zea mays) endosperm, six genes encoding AGPase large or small subunits were characterized for gene expression as well as subcellular location and biochemical activity of the encoded proteins. Seven transcripts from these genes accumulate in endosperm, including those from shrunken2 and brittle2 that encode cytosolic AGPase and five candidates that could encode subunits of the plastidial enzyme. The amino termini of these five polypeptides directed the transport of a reporter protein into chloroplasts of leaf protoplasts. All seven proteins exhibited AGPase activity when coexpressed in Escherichia coli with partner subunits. Null mutations were identified in the genes agpsemzm and agpllzm and shown to cause reduced AGPase activity in specific tissues. The functioning of these two genes was necessary for the accumulation of normal starch levels in embryo and leaf, respectively. Remnant starch was observed in both instances, indicating that additional genes encode AGPase large and small subunits in embryo and leaf. Endosperm starch was decreased by approximately 7% in agpsemzm- or agpllzm- mutants, demonstrating that plastidial AGPase activity contributes to starch production in this tissue even when the major cytosolic activity is present.
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