ArticleEnvironmental microbiology2022
Specificity and genetic polymorphism in the Vfm quorum sensing system of plant pathogenic bacteria of the genus Dickeya.
Article in Environmental microbiology, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.
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7 citing papers in PubMed, 13 citations in OpenAlex.
- Auxin biosynthesis and signaling drive virulence and plant adaptation in Dickeya dadantii.PLoS pathogens · 2026Article
- A critical review of natural quorum-sensing inhibitors as molecular anti-virulence agents against phytopathogenic bacteria.Archives of microbiology · 2026Review
- Gene expression analyses on Dickeya solani strains of diverse virulence levels unveil important pathogenicity factors for this species.Scientific reports · 2025Article
- N-acyl homoserine lactone cell-cell diffusible signalling in the Ralstonia solanacearum species complex.Molecular plant pathology · 2024Review
- Retrospective survey ofFrontiers in microbiology · 2023Article
- Insight into biodiversity of the recently rearranged genusFrontiers in plant science · 2023Article
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Authors and funding
7 authors at 3 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The Vfm quorum sensing (QS) system is preponderant for the virulence of different species of the bacterial genus Dickeya. The vfm gene cluster encodes 26 genes involved in the production, sensing or transduction of the QS signal. To date, the Vfm QS signal has escaped detection by analytical chemistry methods. However, we report here a strain-specific polymorphism in the biosynthesis genes vfmO and vfmP, which is predicted to be related to the production of different analogues of the QS signal. Consequently, the Vfm communication could be impossible between strains possessing different variants of the genes vfmO/P. We constructed three Vfm QS biosensor strains possessing different vfmO/P variants and compared these biosensors for their responses to samples prepared from 34 Dickeya strains possessing different vfmO/P variants. A pattern of specificity was demonstrated, providing evidence that the polymorphism in the genes vfmO/P determines the biosynthesis of different analogues of the QS signal. Unexpectedly, this vfmO/P-dependent pattern of specificity is linked to a polymorphism in the ABC transporter gene vfmG, suggesting an adaptation of the putative permease VfmG to specifically bind different analogues of the QS signal. Accordingly, we discuss the possible involvement of VfmG as co-sensor of the Vfm two-component regulatory system.
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