Gibberellins mobilize nutrients during seed germination.
<P>
<Li> Germination starts when a seed imbibes water.
<Li> The  embryo releases gibberellin (GA) to the aleurone (outer layer
of the seed coat).
<Li> The  aleurone  secretes  a-amylase  to  hydrolyze  sugars  in  the
endosperm.
<Li> Sugars  absorbed  from  the endosperm by the scutellum (cotyledon)
are consumed as the embryo grows.