ArticleApplied and environmental microbiology2012
The bacterium Pantoea stewartii uses two different type III secretion systems to colonize its plant host and insect vector.
Article in Applied and environmental microbiology, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 47 papers.
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47 citing papers in PubMed, 87 citations in OpenAlex.
- Genome Evolution in Plant Pathogenic Bacteria.Genome biology and evolution · 2026Review
- Pathogens without borders: a review on cross-kingdom transmission strategies and pathogenicity of plant and human pathogens.Archives of microbiology · 2026Review
- Deciphering the genomic and functional basis of virulence and immune modulation inFrontiers in microbiology · 2026Article
- Traits analysis of an aphid-killingFrontiers in insect science · 2026Article
- Leveraging microbial ecology for mosquito-borne disease control.Trends in parasitology · 2025Review
- Shifts in geographic vulnerability of US corn crops under different climate change scenarios: corn flea beetle (Chaetocnema pulicaria) and Stewart's Wilt (Pantoea stewartii) bacterium.Environmental entomology · 2024Article
- Insights into the Potential Role of Plasmids in the Versatility of the Genus Pantoea.Molecular biotechnology · 2024Review
- Pathogenic diversification of the gut commensalInfection and immunity · 2024Article
- Complementary roles of EPS, T3SS and Expansin for virulence ofbioRxiv : the preprint server for biology · 2024Article
- Transmission of Xanthomonas albilineans by the spittlebug, Mahanarva fimbriolata (Hemiptera: Cercopidae), in Brazil: first report of an insect vector for the causal agent of sugarcane leaf scald.Journal of insect science (Online) · 2023Article
- A discovery down under: decoding the draft genome sequence ofMicrobial genomics · 2023Article
- Complete Genome Sequence ofMicroorganisms · 2023Article
- Genomic characterization ofFrontiers in cellular and infection microbiology · 2023Article
- Genomic delineation and description of species and within-species lineages in the genusFrontiers in microbiology · 2023Article
- Characterization ofMicrobial genomics · 2022Article
- The secret life of insect-associated microbes and how they shape insect-plant interactions.FEMS microbiology ecology · 2022Review
- Synergistic interaction between the type III secretion system of the endophytic bacterium Pantoea agglomerans DAPP-PG 734 and the virulence of the causal agent of olive knot Pseudomonas savastanoi pv. savastanoi DAPP-PG 722.Molecular plant pathology · 2021Article
- Characterization of the SPI-1 Type III Secretion System inFrontiers in microbiology · 2021Article
- Comparative genomic insights intoMicrobial genomics · 2020Article
- Article
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8 authors at 3 institutions in 2 countries.
Funding
Abstract
Plant- and animal-pathogenic bacteria utilize phylogenetically distinct type III secretion systems (T3SS) that produce needle-like injectisomes or pili for the delivery of effector proteins into host cells. Pantoea stewartii subsp. stewartii (herein referred to as P. stewartii), the causative agent of Stewart's bacterial wilt and leaf blight of maize, carries phylogenetically distinct T3SSs. In addition to an Hrc-Hrp T3SS, known to be essential for maize pathogenesis, P. stewartii has a second T3SS (Pantoea secretion island 2 [PSI-2]) that is required for persistence in its flea beetle vector, Chaetocnema pulicaria (Melsh). PSI-2 belongs to the Inv-Mxi-Spa T3SS family, typically found in animal pathogens. Mutagenesis of the PSI-2 psaN gene, which encodes an ATPase essential for secretion of T3SS effectors by the injectisome, greatly reduces both the persistence of P. stewartii in flea beetle guts and the beetle's ability to transmit P. stewartii to maize. Ectopic expression of the psaN gene complements these phenotypes. In addition, the PSI-2 psaN gene is not required for P. stewartii pathogenesis of maize and is transcriptionally upregulated in insects compared to maize tissues. Thus, the Hrp and PSI-2 T3SSs play different roles in the life cycle of P. stewartii as it alternates between its insect vector and plant host.
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