To offset their sessile life, plants have evolved diverse
strategies to survive and adapt to a broad range
of biotic and abiotic stresses, including insect herbivory
(Howe and Jander, 2008). Resistance to herbivory
is mediated by preexisting physical and chemical
barriers, rapidly induced defense mechanisms (Karban
and Baldwin, 1997), and priming for stronger responses
to subsequent attack (van Hulten et al.,
2006). Given the adaptive value of such responses,
there has been tremendous interest in unraveling the
mechanisms of induced defenses. The hormonal signaling
cascade triggering the production of antiher