| RIN4-like proteins mediate resistance protein-derived soybean defense against Pseudomonas syringae. | |
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MedLine Citation:
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PMID: 21051954 Owner: NLM Status: In-Data-Review |
Abstract/OtherAbstract:
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Resistance (R) protein mediated recognition of pathogen avirulence effectors triggers signaling that induces a very robust form of species-specific immunity in plants. The soybean Rpg1-b protein mediates this form of resistance against the bacterial blight pathogen, Pseudomonas syringae expressing AvrB Pgyrace4. Likewise, the Arabidopsis RPM1 protein also mediates species-specific resistance against AvrB expressing bacteria. RPM1 and Rpg1-b are non-orthologous and differ in their requirements for downstream signaling components. We recently showed that the activation of Rpg1-b derived resistance signaling requires two host proteins that directly interact with AvrB. These proteins share high sequence similarity with the Arabidopsis RPM1 interacting protein 4 (RIN4), which is essential for RPM1-derived resistance. The two soybean RIN4-like proteins (GmRIN4a and b) differ in their abilities to interact with Rpg1-b as well as to complement the Arabidopsis rin4 mutation. Because the two GmRIN4 proteins interact with each other, we proposed that they might function as a heteromeric complex in mediating Rpg1-b-derived resistance. Absence of GmRIN4a or b enhanced basal resistance against bacterial and oomycete pathogens in soybean. Lack of GmRIN4a also enhanced the virulence of avrB bacteria in plants lacking Rpg1-b. Our studies suggest that multiple RIN4-like proteins proteins mediate R-mediated signaling, in soybean. |
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Authors:
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Devarshi Selote; Aardra Kachroo |
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Publication Detail:
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Type: Journal Article Date: 2010-11-01 |
Journal Detail:
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Title: Plant signaling & behavior Volume: 5 ISSN: 1559-2324 ISO Abbreviation: Plant Signal Behav Publication Date: 2010 Nov |
Date Detail:
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Created Date: 2011-05-09 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 101291431 Medline TA: Plant Signal Behav Country: United States |
Other Details:
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Languages: eng Pagination: 1453-6 Citation Subset: IM |
Affiliation:
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Department of Plant Pathology; University of Kentucky; Lexington, KY USA. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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