ArticleThe New phytologist2023
Increasing amyloplast size in wheat endosperm through mutation of PARC6 affects starch granule morphology.
Article in The New phytologist, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.
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14 citing papers in PubMed, 21 citations in OpenAlex.
- Plant organelle division orchestrated by the mosaic machinery of endosymbiotic relics and eukaryotic host factors.Plant physiology · 2026Review
- Targeting granule initiation and amyloplast structure to create giant starch granules in wheat.Science advances · 2026Article
- Starch Synthase 3 isoforms are essential for normal starch granule initiation in wheat endosperm.The New phytologist · 2026Article
- Starch synthesis in Brachypodium distachyon endosperm occurs in dynamic, connected amyloplast compartments.The New phytologist · 2026Article
- Wandering starch - how plastid dynamics affect starch granule formation?The New phytologist · 2026Article
- Altered starch composition and improved bread quality in novel wheat mutant reveal key transcriptional regulators.Current research in food science · 2026Article
- Filamentous Temperature-Sensitive Z Protein J175 Regulates Maize Chloroplasts' and Amyloplasts' Division and Development.Plants (Basel, Switzerland) · 2025Article
- Distinct effects of PTST2b and MRC on starch granule morphogenesis in potato tubers.Plant biotechnology journal · 2025Article
- Wheat MYOSIN-RESEMBLING CHLOROPLAST PROTEIN controls B-type starch granule initiation timing during endosperm development.Plant physiology · 2024Article
- Principles of amyloplast replication in the ovule integuments of Arabidopsis thaliana.Plant physiology · 2024Article
- High-yield hybrid breeding of Camellia oleifolia based on ISSR molecular markers.BMC plant biology · 2024Article
- SAGA1 and SAGA2 promote starch formation around proto-pyrenoids in Arabidopsis chloroplasts.Proceedings of the National Academy of Sciences of the United States of America · 2024Article
- Impact of Variation in Amylose Content on Durum Wheat cv. Svevo Technological and Starch Properties.Foods (Basel, Switzerland) · 2023Article
- Initiation of B-type starch granules in wheat endosperm requires the plastidial α-glucan phosphorylase PHS1.The Plant cell · 2023Article
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8 authors at 1 institution in 1 country.
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No grant is acknowledged in the PubMed record.
Abstract
The determination of starch granule morphology in plants is poorly understood. The amyloplasts of wheat endosperm contain large discoid A-type granules and small spherical B-type granules. To study the influence of amyloplast structure on these distinct morphological types, we isolated a mutant in durum wheat (Triticum turgidum) defective in the plastid division protein PARC6, which had giant plastids in both leaves and endosperm. Endosperm amyloplasts of the mutant contained more A- and B-type granules than those of the wild-type. The mutant had increased A- and B-type granule size in mature grains, and its A-type granules had a highly aberrant, lobed surface. This morphological defect was already evident at early stages of grain development and occurred without alterations in polymer structure and composition. Plant growth and grain size, number and starch content were not affected in the mutants despite the large plastid size. Interestingly, mutation of the PARC6 paralog, ARC6, did not increase plastid or starch granule size. We suggest TtPARC6 can complement disrupted TtARC6 function by interacting with PDV2, the outer plastid envelope protein that typically interacts with ARC6 to promote plastid division. We therefore reveal an important role of amyloplast structure in starch granule morphogenesis in wheat.
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