Regulatory roles of NPR1 in plant defense: regulation and function

Abstract

Overcoming infection is a struggle that all eukaryotic organisms have to face in order to survive and evolve among ubiquitous microorganisms. Extensive research on plant defenses has revealed that defense signal transduction pathways form an interconnected network in which the signaling molecules salicylic acid (SA) and jasmonic acid (JA) play key roles. Previously, SA and JA signaling pathways have been shown to crosscommunicate. Cross-talk between defense signaling pathways is thought to provide the plant with a mechanism to activate defenses that are specifically active against the invader encountered.