Because mutants lacking the ZEP gene still express small levels of this compound, there is probably an as-yet undiscovered alternate synthesis pathway for it.
Because mutants lacking the ZEP gene still express small levels of this compound, there is probably an as-yet undiscovered alternate synthesis pathway for it. In the vacuole, BG2 can hydrolyze the glucose-conjugated form of this molecule. While studying this compound, Sean Cutler discovered a mimic of it called pyrabactin. The dehydrogenation of xanthoxin produces the immediate precursor to this compound, and its catabolism produces phaseic acid. This hormone's most important function is inducing stomata closure, but it's more famous for its release at the beginning of winter, inducing bud dormancy and its namesake phenomenon. For 10 points, identify this plant hormone named for its role in making leaves fall off.
Because mutants lacking the ZEP gene still express small levels of this compound, there is probably an as-yet undiscovered alternate synthesis pathway for it.
abscisic acid [accept dormin or ABA]