2.1.1.276 malfunction a GAMT2null mutant displays ancymidol- and abscisic acid-resistant phenotype in seed germination assay -, 725654 2.1.1.276 malfunction GAMT2 null mutant shows reduced inhibition of germination, compared with the wild type, when placed on plates containing the gibberellin biosynthesis inhibitor ancymidol 723404 2.1.1.276 physiological function methylation of gibberellins by the enzyme serves to deactivate gibberellins and initiate their degradation as the seeds mature 723404 2.1.1.276 physiological function the enzyme is involved in seed maturation, germination and silique development by modulating gibberellic acid activity. Enzyme overexpression in Arabidopsis results in multiple phenotypes, including dwarfism, retarded growth, late flowering, and reduced fertility -, 725654