ArticlePlant physiology2016
SUPPRESSOR OF PHYTOCHROME B4-#3 Represses Genes Associated with Auxin Signaling to Modulate Hypocotyl Growth.
Article in Plant physiology, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.
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Who cites it
17 citing papers in PubMed, 45 citations in OpenAlex.
- Characterization of tomato AHL proteins and their biological functions in the resistance to salt and osmotic stresses.Plant cell reports · 2026Article
- AHL26, an AT-hook gene, negatively regulates hypocotyl growth and flowering time in Arabidopsis thaliana.BMC plant biology · 2025Article
- Genome-wide association studies on leaf midrib architecture in maize.Frontiers in plant science · 2025Article
- Chromatin attachment to the nuclear matrix represses hypocotyl elongation in Arabidopsis thaliana.Nature communications · 2024Article
- The ability ofFrontiers in plant science · 2024Article
- Systematical Characterization of theInternational journal of molecular sciences · 2023Article
- SUPPRESSOR OF PHYTOCHROME B-4 #3 reduces the expression of PIF-activated genes and increases expression of growth repressors to regulate hypocotyl elongation in short days.BMC plant biology · 2022Article
- Overexpression of AtAHL20 causes delayed flowering in Arabidopsis via repression of FT expression.BMC plant biology · 2020Article
- Article
- Improving seed size, seed weight and seedling emergence in Camelina sativa by overexpressing the Atsob3-6 gene variant.Transgenic research · 2020Article
- CIRCADIAN CLOCK ASSOCIATED 1 and ATAF2 differentially suppress cytochrome P450-mediated brassinosteroid inactivation.Journal of experimental botany · 2020Article
- Genome-wide identification and analyses of the AHL gene family in cotton (Gossypium).BMC genomics · 2020Article
- Production location of the gelling agent Phytagel has a significant impact on Arabidopsis thaliana seedling phenotypic analysis.PloS one · 2020Article
- Phosphoproteomics ofProceedings of the National Academy of Sciences of the United States of America · 2019Article
- Crosstalk of the Brassinosteroid Signalosome with Phytohormonal and Stress Signaling Components Maintains a Balance between the Processes of Growth and Stress Tolerance.International journal of molecular sciences · 2018Review
- Brassinosteroid signaling converges with SUPPRESSOR OF PHYTOCHROME B4-#3 to influence the expression of SMALL AUXIN UP RNA genes and hypocotyl growth.The Plant journal : for cell and molecular biology · 2017Article
- Article
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Authors and funding
7 authors at 2 institutions in 2 countries.
Funding
Abstract
Developing seedlings are well equipped to alter their growth in response to external factors in order to maximize their chances of survival. SUPPRESSOR OF PHYTOCHROME B4-#3 (SOB3) and other members of the AT-HOOK MOTIF CONTAINING NUCLEAR LOCALIZED (AHL) family of transcription factors modulate the development of Arabidopsis (Arabidopsis thaliana) by repressing hypocotyl elongation in young seedlings growing in light. However, the molecular mechanism behind how AHLs influence seedling development is largely unknown. We have identified genes associated with auxin-mediated hypocotyl elongation as downstream targets of SOB3. We found that YUCCA8 (YUC8) as well as members of the SMALL AUXIN UP-REGULATED RNA19 (SAUR19) subfamily were down-regulated in the short-hypocotyl, gain-of-function SOB3-D mutant and up-regulated in the dominant-negative, tall-hypocotyl sob3-6 mutant. SOB3-D and sob3-6 hypocotyls also exhibited altered sensitivity to the polar auxin transport inhibitor N-1-napthylphthalamic acid, suggesting a critical connection between auxin and the modulation of seedling elongation by SOB3 Finally, we found that overexpression of GREEN FLUORESCENT PROTEIN-SAUR19 in the SOB3-D line partially rescued defects in hypocotyl elongation, and SOB3 bound directly to the promoters of YUC8 and SAUR19 subfamily members. Taken together, these data indicate that SOB3 modulates hypocotyl elongation in young seedlings by directly repressing the transcription of genes associated with auxin signaling.
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Registered trials
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