Indool3üülasiinhapet
Indool-3-üüläädikhapet, often abbreviated as IAA, is a naturally occurring plant hormone belonging to the auxin class. It is the most abundant and widely studied member of this group. IAA plays a crucial role in various aspects of plant growth and development, including cell elongation, cell division, root formation, and the differentiation of plant tissues. It is synthesized primarily in young leaves and shoot apical meristems and then transported to other parts of the plant where it exerts its effects.
The synthesis of IAA in plants involves a complex metabolic pathway, with tryptophan being the primary precursor.
IAA's influence on plant growth is dose-dependent. At optimal concentrations, it promotes elongation and development. However,