ArticlePlant communications2023
The DELLA-ABI4-HY5 module integrates light and gibberellin signals to regulate hypocotyl elongation.
Article in Plant communications, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 24 papers.
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Who cites it
24 citing papers in PubMed.
- A potential role for DELLA signaling in global treeline formation.The New phytologist · 2026Review
- Hexokinase 1 facilitates post-germinative seedling growth through its catalytic function.The Plant journal : for cell and molecular biology · 2026Article
- Article
- The CPK3-mediated cytosolic-nuclear translocation of bHLH107 recruits HY5 to regulate the CuJournal of advanced research · 2026Article
- Seed-microbiome interactions: Mechanistic insights and utilization toward seed performance for sustainable agriculture.Plant communications · 2026Review
- BrPIF4/BrBBX24-BrHB52-mediated hypocotyl modularity unlocks mechanized harvesting potential inHorticulture research · 2026Article
- The identification of gibberellin 2-oxidase gene family in cotton and functional analysis.BMC plant biology · 2026Article
- Comprehensive analysis of DOF transcription factors and characterization of PlOBP4 during herbaceous peony bud dormancy.Plant cell reports · 2026Article
- Arabidopsis HY5 enhances jasmonate responses by directly suppressing the expression of theFrontiers in plant science · 2026Article
- A MYB61-SWB9-KOs module regulates grain chalkiness via gibberellin biosynthesis in rice endosperm.Plant biotechnology journal · 2025Article
- LTD coordinates chlorophyll biosynthesis and LIGHT-HARVESTING CHLOROPHYLL A/B-BINDING PROTEIN transport.The Plant cell · 2025Article
- TmCOP1-TmHY5 module-mediated blue light signal promotes chicoric acid biosynthesis in Taraxacum mongolicum.Plant biotechnology journal · 2025Article
- Genome-Wide Analysis of bZIP Transcription Factors and Expression Patterns in Response to Salt and Drought Stress inInternational journal of molecular sciences · 2025Article
- Gibberellin-mediated internode elongation in grasses with a focus on bamboo: molecular pathways and regulatory networks.Frontiers in plant science · 2025Review
- GA3-InducedPlants (Basel, Switzerland) · 2024Article
- QTL Mapping and Data Mining to Identify Genes Associated with Soybean Epicotyl Length Using Cultivated Soybean and Wild Soybean.International journal of molecular sciences · 2024Article
- Karrikin signalling: impacts on plant development and abiotic stress tolerance.Journal of experimental botany · 2024Article
- Genome-Wide Identification and Expression Analysis of Auxin Response Factor (ARF) Gene Family inPlants (Basel, Switzerland) · 2023Article
- Characterization of VvmiR166s-Target Modules and Their Interaction Pathways in Modulation of Gibberellic-Acid-Induced Grape Seedless Berries.International journal of molecular sciences · 2023Article
- Design and evaluation of a power tiller vegetable seedling transplanter with dibbler and furrow type.Heliyon · 2023Article
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Authors and funding
12 authors.
Funding
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Abstract
Plant growth is coordinately controlled by various environmental and hormonal signals, of which light and gibberellin (GA) signals are two critical factors with opposite effects on hypocotyl elongation. Although interactions between the light and GA signaling pathways have been studied extensively, the detailed regulatory mechanism of their direct crosstalk in hypocotyl elongation remains to be fully clarified. Previously, we reported that ABA INSENSITIVE 4 (ABI4) controls hypocotyl elongation through its regulation of cell-elongation-related genes, but whether it is also involved in GA signaling to promote hypocotyl elongation is unknown. In this study, we show that promotion of hypocotyl elongation by GA is dependent on ABI4 activation. DELLAs interact directly with ABI4 and inhibit its DNA-binding activity. In turn, ABI4 combined with ELONGATED HYPOCOTYL 5 (HY5), a key positive factor in light signaling, feedback regulates the expression of the GA2ox GA catabolism genes and thus modulates GA levels. Taken together, our results suggest that the DELLA-ABI4-HY5 module may serve as a molecular link that integrates GA and light signals to control hypocotyl elongation.
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