Immunochromatographic purification of gibberellins from vegetative tissues of Cucumis sativus L: Separation and identification of 13-hydroxy and 13-deoxy gibberellins

Immunological methods are described for the separation and purification of 13-hydroxy and 13-deoxy-gibberellins of Cucumis sativus. Qualitative and quantitative data show that 13-deoxygibberellins predominate over 13-hydroxygibberellins in stems and leaves of this species.Abbreviations FCS foetal calf serum - FW fresh weight - GA_n gibberellin A_n - GC-MS combined gas chromatography-mass spectrometry - IAC immunoaffinity chromatography David Marshall is thanked for help with the preparation of the extracts. The authors also thank ICI Plant Protection, Jealotts Hill, Bracknell, Berks., UK, the Science and Engineering Research Council, the Agricultural and Food Research Council, and also the National Science Foundation (grant DCB 8718540 to V.M. Sponsel) for financial support.