ISSN:
1365-3180
Source:
Blackwell Publishing Journal Backfiles 1879-2005
Topics:
Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
Notes:
Summary. Translocation of 3-amino-1,2,4-triazole-5-14C (14C-aminotriazole) was compared to that of 14C-assimilates in couch grass (Agropyron repens (L.) Beauv.) at three different growth stages.Assimilates of 14CO2 were translocated from the treated shoot to other shoots and rhizomes at the 2–3-leaf and 3–4-leaf stages of development. Much less labelled material was translocated into untreated shoots at the 5-leaf stage. More 14C-assimilates were translocated to the roots than to untreated shoots at all developmental stages. The translocation patterns of 14C-aminotriazole and 14C-assimilates were similar.Two metabolites, A and B, were formed from 14C-aminotriazole, which chromatographed identically to previously described metabolites in Cirsium arvense (L.) Scop. A was further metabolized into B. Labelled aminotriazole and its two metabolites were translocated throughout the plants. Metabolite A was phytotoxic when concentrated and re-applied to couch grass, but its properties were not those of Unknown II from Cirsium arvense. They were the same as those of Unknown III. Whether or not metabolite A and Unknown III are identical was not established. Migration des substances assimilables marquées au 14 C, du 3 amino-1,2,4-triazole et de ses métabolites chez Agropyron repens
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1111/j.1365-3180.1972.tb01200.x
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