Aleurone Layer. A layer found in some plant seeds that excretes enzymes used to promote embryonic growth. Gibberellin, a family of growth hormones, enters the aleurone Layer which induces the release of these enzymes.These promote the breakdown of starch into sugar that can be used by the embryo as energy.lease contribute to this project, if you have more information about this term feel free to edit this page. This page was last modified on 3 October 2005, at 21:16.This page has been accessed 2,649 times.