ArticleJournal of bacteriology2007
Pseudomonas syringae lytic transglycosylases coregulated with the type III secretion system contribute to the translocation of effector proteins into plant cells.
Article in Journal of bacteriology, 2007. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 38 papers.
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Who cites it
38 citing papers in PubMed, 75 citations in OpenAlex.
- MtrR Regulates a Major Lytic Transglycosylase (Microorganisms · 2026Article
- HrpW Modulates Paracidovorax citrulli Virulence and Plant Immunity via ClRAR1 Interaction in Watermelon.Molecular plant pathology · 2025Article
- Genomic and mutational analysis of Pseudomonas syringae pv. tagetis EB037 pathogenicity on sunflower.BMC microbiology · 2025Article
- Large-Scale Transposon Mutagenesis Reveals Type III Secretion Effector HopR1 Is a Major Virulence Factor inPlants (Basel, Switzerland) · 2022Article
- Bacterial type III effector-induced plant C8 volatiles elicit antibacterial immunity in heterospecific neighbouring plants via airborne signalling.Plant, cell & environment · 2022Article
- Inhibitory Activity ofThe plant pathology journal · 2020Article
- Two Homologues of the Global Regulator Csr/Rsm Redundantly Control Phaseolotoxin Biosynthesis and Virulence in the Plant PathogenMicroorganisms · 2020Article
- Article
- Cyclic-di-GMP Regulates Autoaggregation Through the Putative Peptidoglycan Hydrolase, EagA, and Regulates Transcription of theFrontiers in microbiology · 2020Article
- Interplay between Peptidoglycan Biology and Virulence in Gram-Negative Pathogens.Microbiology and molecular biology reviews : MMBR · 2018Review
- Bacterial type III secretion systems: a complex device for the delivery of bacterial effector proteins into eukaryotic host cells.FEMS microbiology letters · 2018Review
- Hpa1 is a type III translocator in Xanthomonas oryzae pv. oryzae.BMC microbiology · 2018Article
- Oxygen Availability Influences Expression ofFrontiers in plant science · 2018Article
- Proteomics-based identification of differentially abundant proteins reveals adaptation mechanisms of Xanthomonas citri subsp. citri during Citrus sinensis infection.BMC microbiology · 2017Article
- The Predicted Lytic Transglycosylase HpaH from Xanthomonas campestris pv. vesicatoria Associates with the Type III Secretion System and Promotes Effector Protein Translocation.Infection and immunity · 2017Article
- Constitutive expression of a novel antimicrobial protein, Hcm1, confers resistance to both Verticillium and Fusarium wilts in cotton.Scientific reports · 2016Article
- Unravelling potential virulence factor candidates in Xanthomonas citri. subsp. citri by secretome analysis.PeerJ · 2016Article
- Type III secretion systems: the bacterial flagellum and the injectisome.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2015Review
- Key steps in type III secretion system (T3SS) towards translocon assembly with potential sensor at plant plasma membrane.Molecular plant pathology · 2015Review
- Pseudomonas syringae pv. tomato DC3000 Type III Secretion Effector Polymutants Reveal an Interplay between HopAD1 and AvrPtoB.Cell host & microbe · 2015Article
Corrections and comments
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Authors and funding
4 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Pseudomonas syringae translocates virulence effector proteins into plant cells via a type III secretion system (T3SS) encoded by hrp (for hypersensitive response and pathogenicity) genes. Three genes coregulated with the Hrp T3SS system in P. syringae pv. tomato DC3000 have predicted lytic transglycosylase domains: PSPTO1378 (here designated hrpH), PSPTO2678 (hopP1), and PSPTO852 (hopAJ1). hrpH is located between hrpR and avrE1 in the Hrp pathogenicity island and is carried in the functional cluster of P. syringae pv. syringae 61 hrp genes cloned in cosmid pHIR11. Strong expression of DC3000 hrpH in Escherichia coli inhibits bacterial growth unless the predicted catalytic glutamate at position 148 is mutated. Translocation tests involving C-terminal fusions with a Cya (Bordetella pertussis adenylate cyclase) reporter indicate that HrpH and HopP1, but not HopAJ1, are T3SS substrates. Pseudomonas fluorescens carrying a pHIR11 derivative lacking hrpH is poorly able to translocate effector HopA1, and this deficiency can be restored by HopP1 and HopAJ1, but not by HrpH(E148A) or HrpH(1-241). DC3000 mutants lacking hrpH or hrpH, hopP1, and hopAJ1 combined are variously reduced in effector translocation, elicitation of the hypersensitive response, and virulence. However, the mutants are not reduced in secretion of T3SS substrates in culture. When produced in wild-type DC3000, the HrpH(E148A) and HrpH(1-241) variants have a dominant-negative effect on the ability of DC3000 to elicit the hypersensitive response in nonhost tobacco and to grow and cause disease in host tomato. The three Hrp-associated lytic transglycosylases in DC3000 appear to have overlapping functions in contributing to T3SS functions during infection.
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