Rapidly induced in local tissues by both compatible and incompatible P.syringae pv. tomato DC3000 strains. Accumulates transiently in systemic tissue after challenge with incompatible P.syringae pv. tomato DC3000(avrRpm1) strain but not with a compatible strains; this systemic induction is abolished by a treatment with the calcium ion channel blocker LaCl(3), thus being dependent of a cytoplasmic calcium burst. Triggered by jasmonic acid (JA) and wounding.