ArticleJournal of experimental botany2021
A transcriptional hub integrating gibberellin-brassinosteroid signals to promote seed germination in Arabidopsis.
Article in Journal of experimental botany, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers.
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Who cites it
22 citing papers in PubMed, 37 citations in OpenAlex.
- Touch-Responsive CsaGASAs Regulate Tendril Length During the Climbing Stage in Cucumber.Plant, cell & environment · 2026Article
- Coordinated MBW, GIS, and RSL Regulatory Networks in Plant Epidermal Patterning Under Environmental Cues.International journal of molecular sciences · 2026Review
- Genetic regulation of stem elongation and thickening in ornamental plants: a review.Horticulture research · 2026Article
- Molecular mechanisms of seed dormancy release in Paeonia lactiflora revealed through transcriptomic and metabolomic analysis.BMC plant biology · 2026Article
- Holistic overview of regulatory networks governing seed dormancy and germination in plants.Science China. Life sciences · 2026Review
- ROS-mediated interplay between brassinosteroids and gibberellic acids antagonistically modulates asymmetric periclinal cell division leading to middle cortex formation inPlant signaling & behavior · 2025Article
- Understanding the Brassinosteroid-Dependent Environmental Adaption in Brassicaceae Plants.Plants (Basel, Switzerland) · 2025Review
- Genome-Wide Identification and Characterization of the BZR Transcription Factor Gene Family inGenes · 2025Article
- GA3-InducedPlants (Basel, Switzerland) · 2024Article
- Integrating QTL mapping and transcriptomics to decipher the genetic architecture of sterol metabolism inHorticulture research · 2024Article
- Characterizing seed dormancy in Epimedium brevicornu Maxim.: Development of novel chill models and determination of dormancy release mechanisms by transcriptomics.BMC plant biology · 2024Article
- Article
- A commitment for life: Decades of unraveling the molecular mechanisms behind seed dormancy and germination.The Plant cell · 2024Review
- Identification and Characterization of the BZR Transcription Factor Genes Family in Potato (Plants (Basel, Switzerland) · 2024Article
- Genome-wide identification and expression analysis of BZR gene family and associated responses to abiotic stresses in cucumber (Cucumis sativus L.).BMC plant biology · 2023Article
- Regulatory function of the endogenous hormone in the germination process of quinoa seeds.Frontiers in plant science · 2023Article
- Citric Acid in Rice Root Exudates Enhanced the Colonization and Plant Growth-Promoting Ability of Bacillus altitudinis LZP02.Microbiology spectrum · 2022Article
- DELAY OF GERMINATION 1, the Master Regulator of Seed Dormancy, Integrates the Regulatory Network of Phytohormones at the Transcriptional Level to Control Seed Dormancy.Current issues in molecular biology · 2022Article
- Brassinosteroids regulate rice seed germination through the BZR1-RAmy3D transcriptional module.Plant physiology · 2022Article
- Salicylic Acid in Root Growth and Development.International journal of molecular sciences · 2022Review
Corrections and comments
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Authors and funding
6 authors at 3 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Seed germination is regulated by multiple phytohormones, including gibberellins (GAs) and brassinosteroids (BRs); however, the molecular mechanism underlying GA and BR co-induced seed germination is not well elucidated. We demonstrated that BRs induce seed germination through promoting testa and endosperm rupture in Arabidopsis. BRs promote cell elongation, rather than cell division, at the hypocotyl-radicle transition region of the embryonic axis during endosperm rupture. Two key basic helix-loop-helix transcription factors in the BR signaling pathway, HBI1 and BEE2, are involved in the regulation of endosperm rupture. Expression of HBI1 and BEE2 was induced in response to BR and GA treatment. In addition, HBI1- or BEE2-overexpressing Arabidopsis plants are less sensitive to the BR biosynthesis inhibitor, brassinazole, and the GA biosynthesis inhibitor, paclobutrazol. HBI1 and BEE2 promote endosperm rupture and seed germination by directly regulating the GA-Stimulated Arabidopsis 6 (GASA6) gene. Expression of GASA6 was altered in Arabidopsis overexpressing HBI1, BEE2, or SRDX-repressor forms of the two transcription factors. In addition, HBI1 interacts with BEE2 to synergistically activate GASA6 expression. Our findings define a new role for GASA6 in GA and BR signaling and reveal a regulatory module that controls GA and BR co-induced seed germination in Arabidopsis.
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