The methyl esters of 9 beta,15-cyclogibberellins, 12 alpha- and 12 bet
a-hydroxy-GA(103) have been synthesised and shown by GC-MS to correspo
nd to two metabolites of GA(103) formed by exposure to prothallia of t
he ferns Anemia phyllitidis, Lygodium japonicum and Lygodium circinnat
um. (C) 1998 Elsevier Science Ltd. All rights reserved.