ArticleMolecular plant pathology2022
CsrD regulates amylovoran biosynthesis and virulence in Erwinia amylovora in a novel cyclic-di-GMP dependent manner.
Article in Molecular plant pathology, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.
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10 citing papers in PubMed, 17 citations in OpenAlex.
- Pathogenicity and virulence ofVirulence · 2026Review
- Virulence Regulation and Lifestyle Transitions: The Role of c-di-GMP and Two-Component Systems in Erwinia amylovora and Their Evolutionary Context Within Enterobacterales.Molecular plant pathology · 2026Review
- Previously Uncharacterised Aliphatic Amino Acid Positions Modulate the Apparent Catalytic Activity of the EAL Domain of ZMO_1055 and Other Cyclic Di-GMP-Specific EAL Phosphodiesterases.Microbial biotechnology · 2026Article
- c-di-GMP regulates bacterial NAD biosynthesis via targeting the transcriptional repressor NadR.mBio · 2025Article
- Multitier regulation of theJournal of bacteriology · 2024Article
- pGpG-signaling regulates virulence and global transcriptomic targets inbioRxiv : the preprint server for biology · 2024Article
- Evolution of cyclic di-GMP signalling on a short and long term time scale.Microbiology (Reading, England) · 2023Article
- Bioinformatic and functional characterization of cyclic-di-GMP metabolic proteins inFrontiers in microbiology · 2023Article
- A complete twelve-gene deletion null mutant reveals that cyclic di-GMP is a global regulator of phase-transition and host colonization in Erwinia amylovora.PLoS pathogens · 2022Article
- CsrD regulates amylovoran biosynthesis and virulence in Erwinia amylovora in a novel cyclic-di-GMP dependent manner.Molecular plant pathology · 2022Article
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2 authors at 1 institution in 1 country.
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No grant is acknowledged in the PubMed record.
Abstract
Erwinia amylovora is an economically devastating plant pathogen that causes fire blight disease in members of the Rosaceae family, most notably in apple and pear. The exopolysaccharide amylovoran is a pathogenicity determinant in E. amylovora and a major component of the extracellular matrix of biofilms formed within the xylem vasculature of the host plant. The second messenger cyclic-di-GMP (c-di-GMP) has been reported to positively regulate the transcription of amsG (the first gene in the 12-gene amylovoran [ams] biosynthetic operon), thus impacting amylovoran production. However, the regulatory mechanism by which this interaction occurs is largely unknown. Here, we report that c-di-GMP can bind to specific residues in the EAL domain of the E. amylovora protein CsrD. CsrD and RNase E regulate the degradation of the sRNA CsrB in E. amylovora. When CsrD is bound to c-di-GMP, there is an enhancement in the level of RNase E-mediated degradation of CsrB, which then alters amsG transcription. Additionally, csrD was also found to positively contribute to virulence and biofilm formation. We thus present a pathway of conditional regulation of amylovoran production mediated by changing intracellular levels of c-di-GMP, which impacts disease progression.
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