The plasma membrane-associated Ca²⁺ -binding protein, PCaP1, is required for oligogalacturonide and flagellin-induced priming and immunity.

ABSTRACT: Early signalling events in response to elicitation include reversible protein phosphorylation and re-localization of plasma membrane (PM) proteins. Oligogalacturonides (OGs) are a class of damage-associated molecular patterns (DAMPs) that act as endogenous signals to activate the plant immune response. Previous data on early phosphoproteome changes in Arabidopsis thaliana upon OG perception uncovered the immune-related phospho-regulation of several membrane proteins, among which PCaP1, a PM-anchored protein with actin filament-severing activity, was chosen for its potential involvement in OG- and flagellin-triggered responses. Here, we demonstrate that PCaP1 is required for late, but not early, responses induced by OGs and flagellin. Moreover, pcap1 mutants, unlike the wild type, are impai

SUBMITTER: Giovannoni M 

PROVIDER: S-EPMC8457133 | biostudies-literature | 2021 Sep

REPOSITORIES: biostudies-literature