ArticleApplied and environmental microbiology2011
Bacterial subfamily of LuxR regulators that respond to plant compounds.
Article in Applied and environmental microbiology, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 37 papers.
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Who cites it
37 citing papers in PubMed.
- Molecular regulation of functions ofPlant biotechnology (Tokyo, Japan) · 2025Article
- AFrontiers in systems biology · 2025Article
- Effects ofMicrobiology spectrum · 2024Article
- Phytopathogenic bacteria utilize host glucose as a signal to stimulate virulence through LuxR homologues.Molecular plant pathology · 2023Article
- Identification of Putative Elicitors From Plant Root Exudates Responsible for PsoR Activation in Plant-BeneficialFrontiers in plant science · 2022Article
- Genomic characterization of bacteria from the ultra-oligotrophic Madison aquifer: insight into the archetypical LuxI/LuxR and identification of novel LuxR solos.BMC research notes · 2021Article
- LuxR Solos from Environmental Fluorescent Pseudomonads.mSphere · 2021Article
- Structural basis for a bacterial Pip system plant effector recognition protein.Proceedings of the National Academy of Sciences of the United States of America · 2021Article
- Article
- LuxR Solos in the Plant EndophyteApplied and environmental microbiology · 2020Article
- Whole genome sequencing and identification of host-interactive genes in the rice endophytic Leifsonia sp. ku-ls.Functional & integrative genomics · 2020Article
- PcsR2 Is a LuxR-Type Regulator That Is Upregulated on Wheat Roots and Is Unique toFrontiers in microbiology · 2020Article
- Virulence Factor Identification in the Banana Pathogen Dickeya zeae MS2.Applied and environmental microbiology · 2019Article
- The two-component system CepRS regulates the cephamycin C biosynthesis in Streptomyces clavuligerus F613-1.AMB Express · 2019Article
- A plant-responsive bacterial-signaling system senses an ethanolamine derivative.Proceedings of the National Academy of Sciences of the United States of America · 2018Article
- Review
- Characterization of LuxI and LuxR Protein Homologs of N-Acylhomoserine Lactone-Dependent Quorum Sensing System in Pseudoalteromonas sp. 520P1.Marine biotechnology (New York, N.Y.) · 2017Article
- Genome Comparison ofJournal of genomics · 2017Article
- Article
- A TonB-dependent receptor regulates antifungal HSAF biosynthesis in Lysobacter.Scientific reports · 2016Article
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9 authors.
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No grant is acknowledged in the PubMed record.
Abstract
Pseudomonas fluorescens are rhizobacteria known for their biocontrol properties. Several antimicrobial functions are crucial for this process, and the experiments described here investigate the modulation of their expression during the plant-bacterium interaction. The role of a LuxR family regulator in interkingdom signaling has been investigated using genome-scale transcriptome analysis, gene promoter studies in vivo and in vitro, biocontrol assays, and response to plant compounds. PsoR, a LuxR solo or orphan regulator of P. fluorescens, was identified. PsoR is solubilized and activates a lux-box-containing promoter only in the presence of macerated plants, suggesting the presence of a plant molecule(s) that most likely binds to PsoR. Gene expression profiles revealed that genes involved in the inhibition of plant pathogens were affected by PsoR, including a chitinase gene, iron metabolism genes, and biosynthetic genes of antifungal compounds. 2,4-Diacetylphloroglucinol production is PsoR dependent both in vitro and in vivo. psoR mutants were significantly reduced for their ability to protect wheat plants from root rot, and damping-off caused by Pythium ultimum infection. PsoR most likely senses a molecule(s) in the plant and modulates expression of genes that have a role in biocontrol. PsoR and related proteins form a subfamily of LuxR family regulators in plant-associated bacteria.
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