ArticleMolecular plant pathology2023
Natural variation in the hrpL promoter renders the phytopathogen Pseudomonas syringae pv. actinidiae nonpathogenic.
Article in Molecular plant pathology, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.
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9 citing papers in PubMed, 17 citations in OpenAlex.
- Novel insights into the genetic basis and transcriptomic elucidation of virulence attenuation inVirulence · 2025Article
- Article
- RetS-mediated environmental sensing coordinates TetR-dependent regulation of type III secretion system and virulence inApplied and environmental microbiology · 2025Article
- Osmotic and pH Stress-Responsive Two-Component System, OmpR/EnvZ, Modulates Type III Secretion, Biofilm Formation, Swimming Motility and Virulence in Acidovorax citrulli xjL12.Molecular plant pathology · 2025Article
- A temperature-responsive regulator that enhances virulence in the kiwifruit canker pathogenComputational and structural biotechnology journal · 2025Article
- Unraveling the genomic diversity of the Pseudomonas putida group: exploring taxonomy, core pangenome, and antibiotic resistance mechanisms.FEMS microbiology reviews · 2024Review
- The elicitor VP2 from Verticillium dahliae triggers defence response in cotton.Plant biotechnology journal · 2024Article
- HexR Transcription Factor Contributes toMicroorganisms · 2023Article
- Natural variation in the hrpL promoter renders the phytopathogen Pseudomonas syringae pv. actinidiae nonpathogenic.Molecular plant pathology · 2023Article
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8 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The genetic basis underlying loss-of-virulence mutations that arise among natural phytopathogen populations is not well documented. In this study, we examined the virulence of 377 isolates of Pseudomonas syringae pv. actinidiae biovar 3 (Psa3) that were isolated from 76 kiwifruit orchards suffering from bacterial canker disease. Eighty-four nonpathogenic isolates were identified in 40 orchards. A nonpathogenic isolate G166 was found to be defective in hrpL transcription and the downstream type III secretion system (T3SS)-dependent phenotypes. Comparative genomics and complementary expression assay revealed that a single-base "G" insertion in the hrpL promoter blocks gene transcription by reducing promoter activity. The electrophoretic mobility shift assay showed that the genetic variation impairs σ
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