Plant Metabolism of Fungicides, Translocation and Metabolism of Dodecylguanidine Acetate (Dodine) Fungicide in Apple Trees, Using C¹⁴ Radiotagged Dodine

Abstract

The leaves along two branches of a bearing apple tree were painted repeatedly throughout the growing season with a solution of dodine tagged with C14 on the guanidine carbon. Radiocounting and chemical analysis of apples harvested from these branches indicated that there is no translocation of dodine from foliage into the fruits of the tree. The degradation products of dodine are translocated only very slightly and appear to be simple amino acidand guanidine-type moieties bound in proteins and peptides.