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<p>The family of gibberellins have a similar effect to that of auxins; they promote <em><a href="/dictionary/cell_division">cell division</a></em> and <em><a href="/dictionary/elongation">elongation</a></em>. The major difference is that gibberellins in no way inhibit growth.</p> <h2>Gibberellic Acid</h2> <p>Gibberellic Acid is an example of one of the gibberellin family. Regardless of genotype (tall or small plants), more gibberellin equals more lateral growth.</p> <h2>Gibberellins and Germination</h2> <p>Gibberellins are responsible for promoting growth in the embryo of a seed. It does this the following way</p> <ul><li>Gibberellin released by the <em><a href="/dictionary/embryo">embryo</a></em> travels towards the <em><a href="/dictionary/aleurone_layer">aleurone layer</a></em>, its target tissue situated in the endosperm region of the seed (alongside the embryo). </li> <li>Gibberellin acts as the inducer, as its presence allows the enzyme induction of amylase, which can break down starch INTO a sugar to be used in the embryo. </li> <li>Sugar is used in the plant to synthesise proteins and break out of dormancy. </li> </ul><p>Gibberellins initiate this process in Summer, when the external environment exhibits favourable conditions for plant growth.</p> <p>The previous pages have investigated the various hormones involved in plant growth. The next page investigates the sites of this growth, the meristems.</p>
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