ArticlePlant molecular biology2017
Differences in specificity and compensatory functions among three major starch synthases determine the structure of amylopectin in rice endosperm.
Article in Plant molecular biology, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers.
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Who cites it
20 citing papers in PubMed.
- Haplotype Analysis of the Wx and SSIIa Genes and Their Association with Starch Physicochemical Properties in Diverse Rice Germplasm.Molecular biotechnology · 2026Review
- Transcriptional Divergence of Conserved Starch Metabolism Genes During Grain Filling inCurrent issues in molecular biology · 2026Article
- Research Progress on the Regulatory Mechanism of theCurrent issues in molecular biology · 2025Review
- QTL Mapping and Candidate Gene Analysis for Starch-Related Traits in Tartary Buckwheat (International journal of molecular sciences · 2024Article
- The OsNAC24-OsNAP protein complex activates OsGBSSI and OsSBEI expression to fine-tune starch biosynthesis in rice endosperm.Plant biotechnology journal · 2023Article
- Soluble and insoluble α-glucan synthesis in yeast by enzyme suites derived exclusively from maize endosperm.Plant physiology · 2023Article
- Improving Agricultural Traits While Maintaining High Resistant Starch Content in Rice.Rice (New York, N.Y.) · 2022Article
- Effects of Various Allelic Combinations of Starch Biosynthetic Genes on the Properties of Endosperm Starch in Rice.Rice (New York, N.Y.) · 2022Review
- Active-type starch synthase (SS) IIa from indica rice partially complements the sugary-1 phenotype in japonica rice endosperm.Plant molecular biology · 2022Article
- Starch synthases SSIIa and GBSSI control starch structure but do not determine starch granule morphology in the absence of SSIIIa and SSIVb.Plant molecular biology · 2022Article
- High-resolution quantitative trait locus mapping for rice grain quality traits using genotyping by sequencing.Frontiers in plant science · 2022Article
- Understanding Starch Metabolism in Pea Seeds towards Tailoring Functionality for Value-Added Utilization.International journal of molecular sciences · 2021Review
- Genome-Wide Identification and Genetic Variations of the Starch Synthase Gene Family in Rice.Plants (Basel, Switzerland) · 2021Article
- Comprehensive analysis of AGPase genes uncovers their potential roles in starch biosynthesis in lotus seed.BMC plant biology · 2020Article
- The impact of the indica rice SSIIa allele on the apparent high amylose starch from rice grain with downregulated japonica SBEIIb.TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2020Article
- Genetic Dissection and Functional Differentiation of ALKRice (New York, N.Y.) · 2020Article
- Starch granule size and amylopectin chain length influence starch in vitro enzymatic digestibility in selected rice mutants with similar amylose concentration.Journal of food science and technology · 2019Article
- Direct Determination of the Site of Addition of Glucosyl Units to Maltooligosaccharide Acceptors Catalyzed by Maize Starch Synthase I.Frontiers in plant science · 2018Article
- Rice Mutants Lacking Starch Synthase I or Branching Enzyme IIb Activity Altered Starch Biosynthetic Protein Complexes.Frontiers in plant science · 2018Article
- Starch Synthase IIa-Deficient Mutant Rice Line Produces Endosperm Starch With Lower Gelatinization Temperature Than Japonica Rice Cultivars.Frontiers in plant science · 2018Article
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Abstract
The lengths of amylopectin-branched chains are precise and influence the physicochemical properties of starch, which determine starch functionality. Three major isozymes of starch synthases (SSs), SSI, SSII(a), and SSIII(a), are primarily responsible for amylopectin chain elongation in the storage tissues of plants. To date, the majority of reported rice mutants were generated using japonica cultivars, which have almost inactive SSIIa. Although three SSs share some overlapping chain length preferences, whether they complement each other remains unknown due to the absence of suitable genetic combinations of materials. In this study, rice ss1/SS2a/SS3a and SS1/SS2a/ss3a were newly generated, and the chain length distribution patterns of all the possible combinations of presence and absence of SSI, SSIIa, and SSIIIa activities were compared. This study demonstrated that SSIIa can complement most SSI functions that use glucan chains with DP 6-7 to generate DP 8-12 chains but cannot fully compensate for the elongation of DP 16-19 chains. This suggests that SSIIa preferentially elongates outer but not inner chains of amylopectin. In addition, the results revealed that neither SSI nor SSIIIa compensate for SSIIa. Neither SSI nor SSIIa compensate for elongation of DP >30 by SSIIIa. SSIIa could not resolve the pleiotropic increase of SSI caused by the absence of SSIIIa; instead, SSIIa further elongated those branches elongated by SSI. These results revealed compensatory differences among three major SS isozymes responsible for lengths of amylopectin branches.
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