ArticleJournal of chemical ecology2013
Functional characterization of the bacterial iac genes for degradation of the plant hormone indole-3-acetic acid.
Article in Journal of chemical ecology, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 28 papers.
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Who cites it
28 citing papers in PubMed, 70 citations in OpenAlex.
- Article
- Optimization of auxin production by Streptomyces californicus CLV91 for plant growth promotion.International microbiology : the official journal of the Spanish Society for Microbiology · 2025Article
- Engineering auxin degradation into root-associated bacteria promotes plant growth.bioRxiv : the preprint server for biology · 2025Article
- Growth inhibition ofMicrobiology spectrum · 2025Article
- A cell-cell communication signal fromApplied and environmental microbiology · 2025Article
- Puccinia striiformis Effector PNPi Suppresses TaIAA14 Expression to Inhibit Host Cell Death Response.Molecular plant pathology · 2025Article
- Engineering probiotic Escherichia coli for inflammation-responsive indoleacetic acid production using RiboJ-enhanced genetic circuits.Journal of biological engineering · 2025Article
- Systematic characterization of plant-associated bacteria that can degrade indole-3-acetic acid.PLoS biology · 2024Article
- Genetic evidence for algal auxin production iniScience · 2024Article
- Characterization of the IAA-Producing and -DegradingInternational journal of molecular sciences · 2023Article
- Phytoremediation as an Effective Remedy for Removing Trace Elements from Ecosystems.Plants (Basel, Switzerland) · 2023Review
- Diverse MarR bacterial regulators of auxin catabolism in the plant microbiome.Nature microbiology · 2022Article
- Article
- A bacterial chemoreceptor that mediates chemotaxis to two different plant hormones.Environmental microbiology · 2022Article
- Indole-Acetic Acid Promotes Ammonia Removal Through Heterotrophic Nitrification, Aerobic Denitrification With MixedFrontiers in microbiology · 2022Article
- Seed-BorneFrontiers in microbiology · 2022Article
- Synchronization of gene expression across eukaryotic communities through chemical rhythms.Nature communications · 2021Article
- Genomic analysis of dibenzofuran-degrading Pseudomonas veronii strain Pvy reveals its biodegradative versatility.G3 (Bethesda, Md.) · 2021Article
- Label-Free Quantitative Proteomic Analysis of the Global Response to Indole-3-Acetic Acid in Newly IsolatedFrontiers in microbiology · 2021Article
- Hormones as go-betweens in plant microbiome assembly.The Plant journal : for cell and molecular biology · 2021Review
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Authors and funding
3 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Pseudomonas putida 1290 is a model organism for the study of bacterial degradation of the plant hormone indole-3-acetic acid (IAA). This property is encoded by the iac gene cluster. Insertional inactivation and/or deletion of individual iac genes and heterologous expression of the gene cluster in Escherichia coli were combined with mass spectrometry to demonstrate that iac-based degradation of IAA is likely to involve 2-hydroxy-IAA, 3-hydroxy-2-oxo-IAA, and catechol as intermediates. The first gene of the cluster, iacA encodes for the first step in the pathway, and also can convert indole to indoxyl to produce the blue pigment indigo. Transcriptional profiling of iac genes in P. putida 1290 revealed that they were induced in the presence of IAA. Based on results with an iacR knockout, we propose that this gene codes for a repressor of iacA expression and that exposure to IAA relieves this repression. Transformation of P. putida KT2440 (which cannot degrade IAA) with the iac gene cluster conferred the ability to grow on IAA as a sole source of carbon and energy, but not the ability to chemotaxi towards IAA. We could show such tactic response for P. putida 1290, thus representing the first demonstration of bacterial chemotaxis towards IAA. We discuss the ecological significance of our findings, and specifically the following question: under what circumstances do bacteria with the ability to degrade, recognize, and move towards IAA have a selective advantage?
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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.