ArticlePlant physiology2006
Ethylene modulates flavonoid accumulation and gravitropic responses in roots of Arabidopsis.
Article in Plant physiology, 2006. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 90 papers.
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Who cites it
90 citing papers in PubMed, 211 citations in OpenAlex.
- VfUGT87H9 Enhances Fusarium Resistance in Vernicia fordii via Myricetin Glucosylation-Mediated Flavonoid Metabolism.Plant, cell & environment · 2026Article
- 14-3-3 λ suppresses ethylene-mediated root growth inhibition through EIN3/EIL1 in Aratbidopsis.Plant physiology · 2026Article
- Leaf physiological and transcriptomic analyses provide insights into the regulatory network underlying high yield in yam under directional cultivation.BMC plant biology · 2026Article
- Gravitropic Gene Expression Divergence Associated With Adaptation to Contrasting Environments in an Australian Wildflower.Molecular ecology · 2025Article
- Innovative screening for mutants affected in seed oil/protein allocation identifies TRANSPARENT TESTA7 as a regulator of oil accumulation.The Plant journal : for cell and molecular biology · 2025Article
- Mechanosensing antagonizes ethylene signaling to promote root gravitropism in rice.Nature communications · 2025Article
- Investigation of the reproducibility of the treatment efficacy of a commercial bio stimulant using metabolic profiling on flax.Metabolomics : Official journal of the Metabolomic Society · 2024Article
- The underground tango: How ethylene and auxin interact to regulate cereal root angle.Plant physiology · 2024Article
- NMR and LC-MS-based metabolomics to investigate the efficacy of a commercial bio stimulant for the treatment of wheat (Triticum aestivum).Metabolomics : Official journal of the Metabolomic Society · 2024Article
- Exogenous Melatonin Enhances Dihydrochalcone Accumulation inInternational journal of molecular sciences · 2024Article
- Generation and characterisation of an Arabidopsis thaliana f3h/fls1/ans triple mutant that accumulates eriodictyol derivatives.BMC plant biology · 2024Article
- Transcriptomic analysis reveals GAMolecular genetics and genomics : MGG · 2023Article
- Ethylene signals modulate the survival of Arabidopsis leaf explants.BMC plant biology · 2023Article
- Brachypodium BdCHS is a homolog of Arabidopsis AtCHS involved in the synthesis of flavonoids and lateral root development.Protoplasma · 2023Article
- Flavonols modulate plant development, signaling, and stress responses.Current opinion in plant biology · 2023Review
- Maternal control of triploid seed development by the TRANSPARENT TESTA 8 (TT8) transcription factor in Arabidopsis thaliana.Scientific reports · 2023Article
- Friends in Arms: Flavonoids and the Auxin/Cytokinin Balance in Terrestrialization.Plants (Basel, Switzerland) · 2023Review
- Enhancing the Expression of theInternational journal of molecular sciences · 2022Article
- The Shared Proteome of the Apomictic FernInternational journal of molecular sciences · 2022Article
- The interaction between exogenous IBA with sucrose, light and ventilation alters the expression of ARFs and Aux/IAA genes in Carica papaya plantlets.Plant molecular biology · 2022Article
30 more citing papers are in PubMed but not listed here.
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Authors and funding
3 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Plant organs change their growth direction in response to reorientation relative to the gravity vector. We explored the role of ethylene in Arabidopsis (Arabidopsis thaliana) root gravitropism. Treatment of wild-type Columbia seedlings with the ethylene precursor 1-aminocyclopropane carboxylic acid (ACC) reduced root elongation and gravitropic curvature. The ethylene-insensitive mutants ein2-5 and etr1-3 had wild-type root gravity responses, but lacked the growth and gravity inhibition by ACC found in the wild type. We examined the effect of ACC on tt4(2YY6) seedlings, which have a null mutation in the gene encoding chalcone synthase, the first enzyme in flavonoid synthesis. The tt4(2YY6) mutant makes no flavonoids, has elevated indole-3-acetic acid transport, and exhibits a delayed gravity response. Roots of tt4(2YY6), the backcrossed line tt4-2, and two other tt4 alleles had wild-type sensitivity to growth inhibition by ACC, whereas the root gravitropic curvature of these tt4 alleles was much less inhibited by ACC than wild-type roots, suggesting that ACC may reduce gravitropic curvature by altering flavonoid synthesis. ACC treatment induced flavonoid accumulation in root tips, as judged by a dye that becomes fluorescent upon binding flavonoids in wild type, but not in ein2-5 and etr1-3. ACC also prevented a transient peak in flavonoid synthesis in response to gravity. Together, these experiments suggest that elevated ethylene levels negatively regulate root gravitropism, using EIN2- and ETR1-dependent pathways, and that ACC inhibition of gravity response occurs through altering flavonoid synthesis.
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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.