ArticlePlanta2010
Regulation of the gibberellin pathway by auxin and DELLA proteins.
Article in Planta, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 31 papers.
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Who cites it
31 citing papers in PubMed.
- Genotyping ofPlants (Basel, Switzerland) · 2025Article
- Allelic variations in GA20ox3 regulate fruit length and seed germination timing for high-altitude adaptation in Arabidopsis thaliana.Nature communications · 2025Article
- Unraveling the response of secondary metabolites to cold tolerance in oil palm by integration of physiology and metabolomic analyses.BMC plant biology · 2025Article
- Auxin-mediated seed germination and crosstalk with other phytohormones.Frontiers in plant science · 2025Review
- Analysis of the molecular mechanism endogenous hormone regulating axillary bud development in Pinus yunnanensis.BMC plant biology · 2024Article
- Genome-Wide Analysis of the Gibberellin-Oxidases Family Members in FourInternational journal of molecular sciences · 2024Article
- Identification and Evolutionary Analysis of the Auxin Response Factor (ARF) Family Based on Transcriptome Data from Caucasian Clover and Analysis of Expression Responses to Hormones.International journal of molecular sciences · 2023Article
- Comparative transcriptome profiling reveals the multiple levels of crosstalk in phytohormone networks in Brassica napus.Plant biotechnology journal · 2023Article
- Protein Profiling ofPlants (Basel, Switzerland) · 2023Article
- Phosphorus and naphthalene acetic acid increased the seed yield by regulating carbon and nitrogen assimilation of flax.Frontiers in plant science · 2023Article
- Mendel: From genes to genome.Plant physiology · 2022Article
- Physiological and Transcriptomic Responses of Growth inInternational journal of molecular sciences · 2022Article
- Right time, right place: The dynamic role of hormones in rhizobial infection and nodulation of legumes.Plant communications · 2022Review
- Exogenous gibberellin can effectively and rapidly break intermediate physiological dormancy ofFrontiers in plant science · 2022Article
- Molecular Dissection of the GeneInternational journal of molecular sciences · 2021Article
- GABMC plant biology · 2021Article
- Article
- The Current Status of Research on Gibberellin Biosynthesis.Plant & cell physiology · 2020Review
- How grass keeps growing: an integrated analysis of hormonal crosstalk in the maize leaf growth zone.The New phytologist · 2020Article
- Antioxidant and the Dwarfing Candidate Gene of "Nantongxiaofangshi" (Oxidative medicine and cellular longevity · 2019Article
Corrections and comments
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Authors and funding
8 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The synthesis and deactivation of bioactive gibberellins (GA) are regulated by auxin and by GA signalling. The effect of GA on its own pathway is mediated by DELLA proteins. Like auxin, the DELLAs promote GA synthesis and inhibit its deactivation. Here, we investigate the relationships between auxin and DELLA regulation of the GA pathway in stems, using a pea double mutant that is deficient in DELLA proteins. In general terms our results demonstrate that auxin and DELLAs independently regulate the GA pathway, contrary to some previous suggestions. The extent to which DELLA regulation was able to counteract the effects of auxin regulation varied from gene to gene. For Mendel's LE gene (PsGA3ox1) no counteraction was observed. However, for another synthesis gene, a GA 20-oxidase, the effect of auxin was weak and in WT plants appeared to be completely over-ridden by DELLA regulation. For a key GA deactivation (2-oxidase) gene, PsGA2ox1, the up-regulation induced by auxin deficiency was reduced to some extent by DELLA regulation. A second pea 2-oxidase gene, PsGA2ox2, was up-regulated by auxin, in a DELLA-independent manner. In Arabidopsis also, one 2-oxidase gene was down-regulated by auxin while another was up-regulated. Monitoring the metabolism pattern of GA(20) showed that in Arabidopsis, as in pea, auxin can promote the accumulation of bioactive GA.
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Registered trials
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.