FUSICOCCIN-LIKE LIGANDS IN HIGHER-PLANTS

Fusicoccin-like ligands in higher plants were sought by combining high performance liquid chromatography with radioreceptor analysis and rad ioimmunoassay. Such substances were found in genetically transformed c ultured roots of horseradish, alteus and lupine as well as in native h orseradish, cucumber, horse chestnut, and maize plants. In root crops such as carrot and sugar beet or in potato tubers, only traces of fusi coccin-like ligands were detected. Fusicoccin A was detected in geneti cally transformed cultured roots of horseradish by gas chromatography/ mass spectrometry.