ArticlePlant molecular biology2007
IBR3, a novel peroxisomal acyl-CoA dehydrogenase-like protein required for indole-3-butyric acid response.
Article in Plant molecular biology, 2007. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 64 papers.
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Who cites it
64 citing papers in PubMed.
- Metabolism meets transport: a new perspective on auxin homeostasis at subcellular level.Planta · 2026Review
- Genomic Insights into Winter Wheat Breeding for Severely Cold Climates.International journal of molecular sciences · 2026Article
- Functional characterization of a novel plant growth-promoting rhizobacterium enhancing root growth and salt stress tolerance.Scientific reports · 2025Article
- Identifying and characterizing a missing peroxin-PEX8-in Arabidopsis thaliana.The Plant cell · 2025Article
- Factors governing cellular reprogramming competence in Arabidopsis adventitious root formation.Developmental cell · 2024Article
- Single nucleotide polymorphism (SNP) analysis reveals ancestry and genetic diversity of cultivated and wild grapevines in Croatia.BMC plant biology · 2024Article
- Bioinformatic analysis of short-chain dehydrogenase/reductase proteins in plant peroxisomes.Frontiers in plant science · 2023Article
- Peroxisome-Mediated Reactive Oxygen Species Signals Modulate Programmed Cell Death in Plants.International journal of molecular sciences · 2022Review
- 4-Phenylbutyric acid promotes plant regeneration as an auxin by being converted to phenylacetic acid via an IBR3-independent pathway.Plant biotechnology (Tokyo, Japan) · 2022Article
- Skotomorphogenesis exploits threonine to promote hypocotyl elongation.Quantitative plant biology · 2022Article
- Functional analysis of indole 3-hexanoic acid as a novel auxin from Arabidopsis thaliana.Planta · 2021Article
- An auxin signaling network translates low-sugar-state input into compensated cell enlargement in the fugu5 cotyledon.PLoS genetics · 2021Article
- Long chain acyl CoA synthetase 4 catalyzes the first step in peroxisomal indole-3-butyric acid to IAA conversion.Plant physiology · 2021Article
- TheProceedings of the National Academy of Sciences of the United States of America · 2020Article
- A glutathione-dependent control of the indole butyric acid pathway supports Arabidopsis root system adaptation to phosphate deprivation.Journal of experimental botany · 2020Article
- Plant metabolism of nematode pheromones mediates plant-nematode interactions.Nature communications · 2020Article
- Metabolic Alterations in the Enoyl-CoA Hydratase 2 Mutant Disrupt Peroxisomal Pathways in Seedlings.Plant physiology · 2019Article
- APlant direct · 2019Article
- Indole 3-Butyric Acid Metabolism and Transport inFrontiers in plant science · 2019Review
- Low-copy nuclear markers inApplications in plant sciences · 2018Article
4 more citing papers are in PubMed but not listed here.
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Authors and funding
3 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Indole-3-butyric acid (IBA) is an endogenous auxin that acts in Arabidopsis primarily via its conversion to the principal auxin indole-3-acetic acid (IAA). Genetic and biochemical evidence indicates that this conversion is similar to peroxisomal fatty acid beta-oxidation, but the specific enzymes catalyzing IBA beta-oxidation have not been identified. We identified an IBA-response mutant (ibr3) with decreased responses to the inhibitory effects of IBA on root elongation or the stimulatory effects of IBA on lateral root formation. However, ibr3 mutants respond normally to other forms of auxin, including IAA. The mutant seedlings germinate and develop normally, even in the absence of sucrose, suggesting that fatty acid beta-oxidation is unaffected. Additionally, double mutants between ibr3 and acx3, which is defective in an acyl-CoA oxidase acting in fatty acid beta-oxidation, have enhanced IBA resistance, consistent with a distinct role for IBR3. Positional cloning revealed that IBR3 encodes a putative acyl-CoA dehydrogenase with a consensus peroxisomal targeting signal. Based on the singular defect of this mutant in responding to IBA, we propose that IBR3 may act directly in the oxidation of IBA to IAA.
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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.