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Pseudomonas syringae Effector Protein AvrB Perturbs Arabidopsis Hormone Signaling by Activating MAP Kinase 4
Open accessAbstract
SUMMARY Pathogenic microbes often modulate phytohormone physiology in the host to their advantage. We previously showed that the Pseudomonas syringae effector protein AvrB perturbs hormone signaling exemplified by an up-regulation of jasmonic acid (JA) response gene expression and enhances plant susceptibility. Here we show that AvrB does so by interacting with the Arabidopsis mitogen activated protein kinase MAP KINASE 4 (MPK4) and HSP90 chaperone components. AvrB induces MPK4 activation and this is directly promoted by the HSP90 chaperone. A previously identified AvrB-interacting protein, RIN4, also is required for AvrB to perturb hormone signaling and induce plant susceptibility, likely by acting down-stream of MPK4. These findings uncover a novel pathway through which a bacterial effector protein stimulates host processes to the benefit of the P. syringae bacterium.
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Citations
Cited by
Toruño, T. Y., Stergiopoulos, I., & Coaker, G. (2016) · Annual Review of Phytopathology · doi:10.1146/annurev-phyto-080615-100204 · Cited by 665
Susceptibility Genes 101: How to Be a Good Host
van Schie, C. C. N., & Takken, F. L. W. (2014) · Annual Review of Phytopathology · doi:10.1146/annurev-phyto-102313-045854 · Cited by 658
Xin, X.-F., & He, S. Y. (2013) · Annual Review of Phytopathology · doi:10.1146/annurev-phyto-082712-102321 · Cited by 620
Intervention of Phytohormone Pathways by Pathogen Effectors
Kazan, K., & Lyons, R. (2014) · The Plant Cell · doi:10.1105/tpc.114.125419 · Cited by 488
Activation of plant pattern-recognition receptors by bacteria
Segonzac, C., & Zipfel, C. (2011) · Current Opinion in Microbiology · doi:10.1016/j.mib.2010.12.005 · Cited by 309
Metadata
- Authors
- Cui, H., Wang, Y., Xue, L., Chu, J., Yan, C., Fu, J., Chen, M., Innes, R. W., & Zhou, J.-M.
- Venue
- Cell Host & Microbe
- Publisher
- Elsevier BV
- Published
- 2010-02
- Volume
- 7
- Issue
- 2
- Pages
- 164-175
- ISSN
- 1931-3128 (ISSN-L)
- OpenAlex
- W2086726504
- Cited by
- 207
- References
- 0
- FWCI
- 18.19
- Type
- journal article
- Language
- en
- Open access
- bronze
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- CoChat. (2026). Citation check: Pseudomonas syringae Effector Protein AvrB Perturbs Arabidopsis Hormone Signaling by Activating MAP Kinase 4. https://app.cochat.ai/papers/10.1016/j.chom.2010.01.009
- The paper
- Cui, H., Wang, Y., Xue, L., Chu, J., Yan, C., Fu, J., Chen, M., Innes, R. W., & Zhou, J.-M. (2010). Pseudomonas syringae Effector Protein AvrB Perturbs Arabidopsis Hormone Signaling by Activating MAP Kinase 4. Cell Host & Microbe. https://doi.org/10.1016/j.chom.2010.01.009
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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
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