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Pipecolic acid, an endogenous mediator of defense amplification and priming, is a critical regulator of inducible plant immunity

Návarová, Hana ; Bernsdorff, Friederike ; Döring, Anne-Christin ; Zeier, Jürgen

In: The Plant Cell, 2012, p. -

Metabolic signals orchestrate plant defenses against microbial pathogen invasion. Here, we report the identification of the non-protein amino acid pipecolic acid (Pip), a common Lys catabolite in plants and animals, as a critical regulator of inducible plant immunity. Following pathogen recognition, Pip accumulates in inoculated Arabidopsis thaliana leaves, in leaves distal from the site of...