ArticleMolecular plant pathology2024
A type VI secretion system effector TseG of Pantoea ananatis is involved in virulence and antibacterial activity.
Article in Molecular plant pathology, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.
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Who cites it
8 citing papers in PubMed.
- Whole-genome analysis of Pantoea alfalfae HF1 isolated from shot hole lesions in peach leaves and symptom reproduction by wound inoculation.AMB Express · 2026Article
- Comparative genomics ofMicrobial genomics · 2026Article
- Type VI secretion systems at the interface between bacteria and eukaryotic cells.Genetics and molecular biology · 2026Article
- Dissecting the antibacterial functions of the T6SS-2 cluster inApplied and environmental microbiology · 2025Article
- Article
- Comparative genomics-based insights intoApplied and environmental microbiology · 2025Article
- Non-adapted bacterial infection suppresses plant reproduction.Science advances · 2025Article
- A type VI secretion system effector TseG of Pantoea ananatis is involved in virulence and antibacterial activity.Molecular plant pathology · 2024Article
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Authors and funding
10 authors.
Funding
Abstract
The type VI secretion system (T6SS) of many gram-negative bacteria injects toxic effectors into adjacent cells to manipulate host cells during pathogenesis or to kill competing bacteria. However, the identification and function of the T6SS effectors remains only partly known. Pantoea ananatis, a gram-negative bacterium, is commonly found in various plants and natural environments, including water and soil. In the current study, genomic analysis of P. ananatis DZ-12 causing brown stalk rot on maize demonstrated that it carries three T6SS gene clusters, namely, T6SS-1, T6SS-2, and T6SS-3. Interestingly, only T6SS-1 secretion systems are involved in pathogenicity and bacterial competition. The study also investigated the T6SS-1 system in detail and identified an unknown T6SS-1-secreted effector TseG by using the upstream T6SS effector chaperone TecG containing a conserved domain of DUF2169. TseG can directly interact with the chaperone TecG for delivery and with a downstream immunity protein TsiG for protection from its toxicity. TseG, highly conserved in the Pantoea genus, is involved in virulence in maize, potato, and onion. Additionally, P. ananatis uses TseG to target Escherichia coli, gaining a competitive advantage. This study provides the first report on the T6SS-1-secreted effector from P. ananatis, thereby enriching our understanding of the various types and functions of type VI effector proteins.
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