ArticleThe Plant cell2006
Interaction between rice MYBGA and the gibberellin response element controls tissue-specific sugar sensitivity of alpha-amylase genes.
Article in The Plant cell, 2006. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 55 papers.
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Who cites it
55 citing papers in PubMed.
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- Adequate water supply enhances seedling growth and metabolism in Festuca kryloviana: insights from physiological and transcriptomic analys.BMC plant biology · 2024Article
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- Beneficial effects of bio-fabricated selenium nanoparticles as seed nanopriming agent on seed germination in rice (Oryza sativa L.).Scientific reports · 2023Article
- Characterization of wheat Wrab18 gene promoter and expression analysis under abiotic stress.Molecular biology reports · 2023Article
- Integrating Transcriptomics and Hormones Dynamics Reveal Seed Germination and Emergence Process inInternational journal of molecular sciences · 2023Article
- Regulation of reactive oxygen species and phytohormones in osmotic stress tolerance during seed germination inFrontiers in plant science · 2023Article
- The rice SnRK family: biological roles and cell signaling modules.Frontiers in plant science · 2023Review
- FaesAP3_1 Regulates theInternational journal of molecular sciences · 2022Article
- High temperature induces male sterility via MYB66-MYB4-Casein kinase I signaling in cotton.Plant physiology · 2022Article
- Brassinosteroids regulate rice seed germination through the BZR1-RAmy3D transcriptional module.Plant physiology · 2022Article
- Transcriptome and Metabolite Conjoint Analysis Reveals the Seed Dormancy Release Process in Callery Pear.International journal of molecular sciences · 2022Article
- Isolation and Transfection of Maize Endosperm Protoplasts.Methods in molecular biology (Clifton, N.J.) · 2022Article
- Carbon Starved Anther modulates sugar and ABA metabolism to protect rice seed germination and seedling fitness.Plant physiology · 2021Article
- Eco-friendly synthesis of phytochemical-capped iron oxide nanoparticles as nano-priming agent for boosting seed germination in rice (Oryza sativa L.).Environmental science and pollution research international · 2021Article
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- The Rice Small Auxin-Up RNA GeneInternational journal of molecular sciences · 2021Article
- The Effect of Endogenous Hormones, Total Antioxidant and Total Phenol Changes on Regeneration of Barley Cultivars.Iranian journal of biotechnology · 2021Article
- Mechanism of delayed seed germination caused by high temperature during grain filling in rice (Oryza sativa L.).Scientific reports · 2020Article
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4 authors.
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No grant is acknowledged in the PubMed record.
Abstract
Expression of alpha-amylase genes during cereal grain germination and seedling growth is regulated negatively by sugar in embryos and positively by gibberellin (GA) in endosperm through the sugar response complex (SRC) and the GA response complex (GARC), respectively. We analyzed two alpha-amylase promoters, alphaAmy3 containing only SRC and alphaAmy8 containing overlapped SRC and GARC. alphaAmy3 was sugar-sensitive but GA-nonresponsive in both rice (Oryza sativa) embryos and endosperms, whereas alphaAmy8 was sugar-sensitive in embryos and GA-responsive in endosperms. Mutation of the GA response element (GARE) in the alphaAmy8 promoter impaired its GA response but enhanced sugar sensitivity, and insertion of GARE in the alphaAmy3 promoter rendered it GA-responsive but sugar-insensitive in endosperms. Expression of the GARE-interacting transcription factor MYBGA was induced by GA in endosperms, correlating with the endosperm-specific alphaAmy8 GA response. alphaAmy8 became sugar-sensitive in MYBGA knockout mutant endosperms, suggesting that the MYBGA-GARE interaction overrides the sugar sensitivity of alphaAmy8. In embryos overexpressing MYBGA, alphaAmy8 became sugar-insensitive, indicating that MYBGA affects sugar repression. alpha-Amylase promoters active in endosperms contain GARE, whereas those active in embryos may or may not contain GARE, confirming that the GARE and GA-induced MYBGA interaction prevents sugar feedback repression of endosperm alpha-amylase genes. We demonstrate that the MYBGA-GARE interaction affects sugar feedback control in balanced energy production during seedling growth and provide insight into the control mechanisms of tissue-specific regulation of alpha-amylase expression by sugar and GA signaling interference.
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