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The green leaf volatile Z-3-hexenyl acetate primes wheat for enhanced defense against the hemibiotrophic fungus F.graminearum by boosting jasmonate related defenses.Priming refers to a mechanism whereby plants are sensitized to respond faster and/or more strongly to future pathogen attack.Here, we demonstrated that pre-exposure to the green leaf volatile (GLV) Z-3-hexenyl acetate (Z-3-HAC) primed wheat (Triticum aestivum L.) for an enhanced defense against subsequent infection with the hemibiotrophic fungus Fusarium graminearum.