A dominant mutation in BDA4 suppresses the autoimmune phenotypes in snc2-1D
Y. DING (1) (1) University of British Columbia, Canada

Plants can detect microbial pathogens via the recognition of pathogen-associated molecular patterns (PAMPs) by pattern recognition receptors (PRRs). A small number of these receptors belong to the receptor-like protein family. Previously, we showed that a gain-of-function mutation in Arabidopsis receptor-like protein SNC2 (for Suppressor of NPR1, Constitutive2) leads to constitutive activation of defense responses in snc2-1D mutant plants. To identify components involved in SNC2-mediated resistance pathway, we carried out suppressor screens in the snc2-1D npr1-1 and eds5-3 snc2-1D npr1-1 mutant backgrounds. A dominant mutant of BDA4 (for bian da; “becoming big” in Chinese) was found to suppresses the dwarf morphology and constitutive defense responses in snc2-1D npr1-1. Characterization of the bda4 mutant and positional cloning of the BDA4 gene will be presented.

Abstract Number: P17-515
Session Type: Poster