Proposed Model of ABA-SA Antagonism in the Xcv–Pepper Interaction.
The pepper ABA-responsive protein, ABR1, which localizes to the nucleus, negatively regulates ABA signaling in an SA-dependent manner to resist pathogen attack. Arrows indicate positive regulation and blunt ends denote negative regulation. Blue and red lines show compatible and incompatible interaction events, respectively.
[See online article for color version of this figure.]