ArticlePlant physiology2004
Gibberellins repress photomorphogenesis in darkness.
Article in Plant physiology, 2004. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 109 papers.
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Who cites it
109 citing papers in PubMed, 265 citations in OpenAlex.
- Structural variation in the IAMH2 3' UTR underlies hypocotyl elongation during light adaptation in Arabidopsis thaliana.The Plant journal : for cell and molecular biology · 2026Article
- The PavDREB1E-PavD8-PavHY5 module integrates light and gibberellin signals to regulate sweet cherry anthocyanin biosynthesis.Plant physiology · 2025Article
- A PIF-SAUR module safeguards hypocotyl elongation from ABA inhibition in the dark.Science advances · 2025Article
- BTB/POZ-MATH proteins regulate Arabidopsis seedling development by promoting auxin-independent degradation of the Aux/IAA protein IAA10.Plant physiology · 2025Article
- Plant Signaling Hormones and Transcription Factors: Key Regulators of Plant Responses to Growth, Development, and Stress.Plants (Basel, Switzerland) · 2025Review
- Article
- Multi-omics analysis of organ-specific hormone distribution and molecular regulatory mechanisms inFrontiers in plant science · 2025Article
- Depletion of Gibberellin Signaling Up-RegulatesInternational journal of molecular sciences · 2024Article
- Functional Characterization of the Gibberellin (GA) Receptor ScGID1 in Sugarcane.International journal of molecular sciences · 2024Article
- DELLA proteins recruit the Mediator complex subunit MED15 to coactivate transcription in land plants.Proceedings of the National Academy of Sciences of the United States of America · 2024Article
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- The Effects of Exogenous 2,4-Epibrassinolide on the Germination of Cucumber Seeds under NaHCOPlants (Basel, Switzerland) · 2024Article
- The DELLA-ABI4-HY5 module integrates light and gibberellin signals to regulate hypocotyl elongation.Plant communications · 2023Article
- Maize ZmWRKY28: a target to regulate shade avoidance response under high planting density.Journal of experimental botany · 2023Article
- DELLA functions evolved by rewiring of associated transcriptional networks.Nature plants · 2023Article
- Impact of "Green Revolution" geneFrontiers in plant science · 2023Article
- GA-Mediated Disruption of RGA/BZR1 Complex Requires HSP90 to Promote Hypocotyl Elongation.International journal of molecular sciences · 2022Article
- Periodicity and Spectral Composition of Light in the Regulation of Hypocotyl Elongation of Sunflower Seedlings.Plants (Basel, Switzerland) · 2022Article
- BBX24 Interacts with DELLA to Regulate UV-B-Induced Photomorphogenesis inInternational journal of molecular sciences · 2022Article
49 more citing papers are in PubMed but not listed here.
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Authors and funding
4 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Plants undergo two different developmental programs depending on whether they are growing in darkness (skotomorphogenesis) or in the presence of light (photomorphogenesis). It has been proposed that the latter is the default pathway followed by many plants after germination and before the seedling emerges from soil. The transition between the two pathways is tightly regulated. The conserved COP1-based complex is central in the light-dependent repression of photomorphogenesis in darkness. Besides this control, hormones such as brassinosteroids (BRs), cytokinins, auxins, or ethylene also have been shown to regulate, to different extents, this developmental switch. In the present work, we show that the hormone gibberellin (GA) widely participates in this regulation. Studies from Arabidopsis show that both chemical and genetic reductions of endogenous GA levels partially derepress photomorphogenesis in darkness. This is based both on morphological phenotypes, such as hypocotyl elongation and hook and cotyledon opening, and on molecular phenotypes, such as misregulation of the light-controlled genes CAB2 and RbcS. Genetic studies indicate that the GA signaling elements GAI and RGA participate in these responses. Our results also suggest that GA regulation of this response partially depends on BRs. This regulation seems to be conserved across species because lowering endogenous GA levels in pea (Pisum sativum) induces full de-etiolation in darkness, which is not reverted by BR application. Our results, therefore, attribute an important role for GAs in the establishment of etiolated growth and in repression of photomorphogenesis.
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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.