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Possible Models Describing the Role of LEP in GA Signaling during Germination.
(A) LEP is a positive regulator of GA-induced germination. In a parallel signaling cascade, GA promotes germination by affecting the transcription and protein stability of RGL2, a negative regulator of germination.
(B) GA negatively affects RGL2, allowing a downstream signaling component, LEP, to positively regulate germination.
