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IN BRIEF A Sesquiterpene Distress Signal Transmitted by Maize



Plants release a blend of volatile defense compounds in response to herbivore feeding. Whereas some of these volatiles act as direct deterrents, others serve as indirect defense signals that attract natural enemies of the foraging herbivores (reviewed in Dicke et al., 2003). For instance, the signal emitted from maize leaves damaged by lepidopteran larvae attracts parasitic wasps that deposit their eggs into the larvae, thereby incapacitating the larvae and minimizing damage to the plant (see figure). The sesquiterpene (E)-b-caryophyllene has been identified as one of the volatiles emitted by maize in response to herbivory (Turlings et al., 1998). This compound is als

Year: 2013
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