– Plant hormones and secondary compounds

Select and report about a plant hormone or secondary compound (aka secondary metabolite).  You may select any compound in those categories, whether it is used for plant growth, regulation, defense, etc.  These compounds have been used by humans for a variety of purposes.  In your discussion post, please indicate the name of your compound, its use in plants, how it functions on a chemical level, its uses (if any) for humans, and any other interesting information you came across in your research.