ArticlePlant signaling & behavior2016
Inhibition of FUSCA3 degradation at high temperature is dependent on ABA signaling and is regulated by the ABA/GA ratio.
Article in Plant signaling & behavior, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.
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Who cites it
11 citing papers in PubMed, 22 citations in OpenAlex.
- The multifaceted role of gibberellins in somatic embryogenesis: fromFrontiers in plant science · 2026Review
- Analysis of candidate genes identified via genome-wide association analysis of sugar-related traits in maize kernels.The plant genome · 2025Article
- Mechanism of thermodormancy induction in Fraxinus mandshurica seeds is related to changes in the endosperm.Planta · 2025Article
- Factors Influencing Seed Dormancy and Germination and Advances in Seed Priming Technology.Plants (Basel, Switzerland) · 2024Review
- Voice from both sides: a molecular dialogue between transcriptional activators and repressors in seed-to-seedling transition and crop adaptation.Frontiers in plant science · 2024Review
- BSA-Seq and Transcriptomic Analysis Provide Candidate Genes Associated with Inflorescence Architecture and Kernel Orientation by Phytohormone Homeostasis in Maize.International journal of molecular sciences · 2023Article
- Genetic activity during early plant embryogenesis.The Biochemical journal · 2020Review
- Temperature Regulation of Primary and Secondary Seed Dormancy inInternational journal of molecular sciences · 2020Article
- Spatiotemporal Restriction ofThe Plant cell · 2020Article
- Abscisic Acid and Gibberellins Antagonistically Mediate Plant Development and Abiotic Stress Responses.Frontiers in plant science · 2018Review
- SnRK1 phosphorylation of FUSCA3 positively regulates embryogenesis, seed yield, and plant growth at high temperature in Arabidopsis.Journal of experimental botany · 2017Article
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3 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
During seed imbibition at supra-optimal temperature, an increase in the abscisic acid (ABA)/gibberellin (GA) ratio imposes secondary dormancy to prevent germination (thermoinhibition). FUSCA3 (FUS3), a positive regulator of seed dormancy, accumulates in seeds imbibed at high temperature and increases ABA levels to inhibit germination. Recently, we showed that ABA inhibits FUS3 degradation at high temperature, and that ABA and high temperature also inhibit the ubiquitin-proteasome system, by dampening both proteasome activity and protein polyubiquitination. Here, we investigated the role of ABA signaling components and the ABA antagonizing hormone, GA, in the regulation of FUS3 levels. We show that the ABA receptor mutant, pyl1-1, is less sensitive to ABA and thermoinhibition. In this mutant background, FUS3 degradation in vitro is faster. Similarly, GA alleviates thermoinhibition and also increases FUS3 degradation. These results indicate that inhibition of FUS3 degradation at high temperature is dependent on a high ABA/GA ratio and a functional ABA signaling pathway. Thus, FUS3 constitutes an important node in ABA-GA crosstalk during germination at supra-optimal temperature.
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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.