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Abstract
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Interference between Two Specific Pathogen Recognition Events Mediated by Distinct Plant Disease Resistance Genes.

C. Ritter, J. L. Dangl
C. Ritter
Max-Delbruck Laboratory, Carl-von-Linne Weg 10, 50829 Cologne, Germany.
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J. L. Dangl
Max-Delbruck Laboratory, Carl-von-Linne Weg 10, 50829 Cologne, Germany.
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Published February 1996. DOI: https://doi.org/10.1105/tpc.8.2.251

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  • Copyright © 1996 by American Society of Plant Biologists

Abstract

We demonstrate that the interaction of the avirulence gene avrRpt2 and the cognate resistance gene RPS2 interferes with the interaction of avrRpm1-RPM1 in Arabidopsis. Interference is mediated outside of the bacterial pathogen Pseudomonas syringae, presumably at the level of recognition of avr-dependent signals, yet does not require the wild-type RPS2 product. A numerical excess of P. syringae expressing avrRpm1 can overcome this interference in mixed inoculations. The interference of avrRpt2-RPS2 engagement with RPM1-dependent functions is mirrored by transcriptional activation of genes preferentially expressed during RPM1- or RPS2-mediated disease resistance reactions. This demonstration of interference between two plant disease resistance genes suggests that their products compete for a common element(s) in a signal transduction pathway leading to disease resistance.

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Interference between Two Specific Pathogen Recognition Events Mediated by Distinct Plant Disease Resistance Genes.
C. Ritter, J. L. Dangl
The Plant Cell Feb 1996, 8 (2) 251-257; DOI: 10.1105/tpc.8.2.251

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Interference between Two Specific Pathogen Recognition Events Mediated by Distinct Plant Disease Resistance Genes.
C. Ritter, J. L. Dangl
The Plant Cell Feb 1996, 8 (2) 251-257; DOI: 10.1105/tpc.8.2.251
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The Plant Cell
Vol. 8, Issue 2
Feb 1996
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