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Cited by 294

The DOI matches its Crossref record; 44 of the 44 references it cites were found in a registry or an index.

Identification of Pseudomonas syringae type III effectors that can suppress programmed cell death in plants and yeast

Jamir, Yashitola, Guo, Ming, Oh, Hye‐Sook, Petnicki‐Ocwieja, Tanja, Chen, Shaorong, Tang, Xiaoyang, Dickman, Martin B., Collmer, Alan, R. Alfano, James·2004·The Plant Journal

Abstract

Summary: The Pseudomonas syringae pv. tomato DC3000 type III secretion system (TTSS) is required for bacterial pathogenicity on plants and elicitation of the hypersensitive response (HR), a programmed cell death (PCD) that occurs on resistant plants. Cosmid pHIR11 enables non‐pathogens to elicit an HR dependent upon the TTSS and the effector HopPsyA. We used pHIR11 to determine that effectors HopPtoE, avirulence AvrPphE Pto , AvrPpiB1 Pto , AvrPtoB, and HopPtoF could suppress a HopPsyA‐dependent HR on tobacco and Arabidopsi s. Mixed inoculum and Agrobacterium ‐mediated transient expression experiments confirmed that suppressor action occurred within plant cells. These suppressors, with the exception of AvrPpiB1 Pto , inhibited the expression of the tobacco pathogenesis‐related (PR) gene PR1a. DC3000 suppressor mutants elicited an enhanced HR consistent with these mutants lacking an HR suppressor. Additionally, HopPtoG was identified as a suppressor on the basis of an enhanced HR produced by a hopPtoG mutant. Remarkably, these proteins functioned to inhibit the ability of the pro‐apoptotic protein, Bax to induce PCD in plants and yeast, indicating that these effectors function as anti‐PCD proteins in a trans ‐kingdom manner. The high proportion of effectors that suppress PCD suggests that suppressing plant immunity is one of the primary roles for DC3000 effectors and a central requirement for P. syringae pathogenesis.

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Metadata

Authors
Jamir, Y., Guo, M., Oh, H., Petnicki‐Ocwieja, T., Chen, S., Tang, X., Dickman, M. B., Collmer, A., & R. Alfano, J.
Venue
The Plant Journal
Publisher
Wiley
Published
2004-01-26
Volume
37
Issue
4
Pages
554-565
ISSN
  • 0960-7412 (ISSN-L)
  • 1365-313X
OpenAlex
W2101564391
Cited by
294
References
44
FWCI
32.61
Type
journal article
Language
en
Open access
closed

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CoChat. (2026). Citation check: Identification of Pseudomonas syringae type III effectors that can suppress programmed cell death in plants and yeast. https://app.cochat.ai/papers/10.1046/j.1365-313x.2003.01982.x
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Jamir, Y., Guo, M., Oh, H., Petnicki‐Ocwieja, T., Chen, S., Tang, X., Dickman, M. B., Collmer, A., & R. Alfano, J. (2004). Identification of Pseudomonas syringae type III effectors that can suppress programmed cell death in plants and yeast. The Plant Journal. https://doi.org/10.1046/j.1365-313x.2003.01982.x

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