Immunoaffinity Columns for the Isolation and Analysis of Plant Hormones

One of the most promising developments to emerge in recent years has been the application of immunochemical methods for plant hormone analysis. Antibodies to the major plant hormones are being used as a means of quantitiation and assays have been developed with detection limits down into the picomole range. In the near future antibodies may well provide the ability to establish the site(s) of hormone synthesis and storage via immunocytochemical techniques. Antibodies can be extremely selective chemical reagents whose potiential in plant hormone research is only now beginning to be realized.