Gibberellins produce bolting of rosette–forming plants, increasing internodal length.
Gibberellins or GAs include a large range of chemicals that are produced naturally within plants and by fungi.
Gibberellins are important in seed germination, affecting enzyme production which mobilizes food production used for growth of new cells. This is done by modulating chromosomal transcription. In grain (rice, wheat, corn, etc.) seeds, a layer of cells called the aleurone layer wraps around the endosperm tissue. Absorption of water by the seed causes production of gibberellin. The gibberellin is transported to the aleurone layer, which responds by producing enzymes that break down stored food reserves within the endosperm, which are utilized by the growing seedling.
Gibberellins produce bolting of rosette–forming plants, increasing internodal length. They promote flowering, cellular division, and in seeds growth after germination. Gibberellins also reverse the inhibition of shoot growth and dormancy induced by Abscisic acid.