Induced resistance is a state of enhanced defensive capacity of plants after treatment with biotic or abiotic inducing agents inorder to mobilize appropriate cellular defense responses againstmicrobial pathogens (Bostock, 2005). It has long been recognizedthat disease resistance is systemically and directly triggered fol-lowing a localized infection with necrosis-inducing pathogens ortreatment with some inducing chemical agents. However, thereis ample evidence that defense responses in plants can not onlybe induced directly but also be linked to a primed state of theplant (Conrath, 2011). Upon treatment with selected strains ofnonpathogenic plant growth promoting rhizobacteria (PGPR) orwith some chemical elicitors, many plants are capable of recall-ing and augmenting sensitivity to plant signal molecules such asjasmonic acid and ethylene, rather than directly triggering cellulardefense responses. Accordingly, the primed plants process morerapid and/or effective activation of the defense responses whenthey are infected with pathogens (Saharan and Nehra, 2011; Bakkeret al., 2013). This plant–pathogen interaction is well known as