Exploring the molecular mechanism of karrikins and strigolactones
2012
Scaffidi, Adrian | Waters, Mark T. | Bond, Charles S. | Dixon, K. W. (Kingsley W.) | Smith, Steven M. | Ghisalberti, Emilio L. | Flematti, Gavin R.
Karrikins and strigolactones are novel plant growth regulators that contain similar molecular features, but very little is known about how they elicit responses in plants. A tentative molecular mechanism has previously been proposed involving a Michael-type addition for both compounds. Through structure–activity studies with karrikins, we now propose an alternative mechanism for karrikin and strigolactone mode of action that involves hydrolysis of the butenolide ring.
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