Diphenamid metabolism in pepper and an ozone effect. II. Herbicide metabolite characterization

Journal Article · Fri Jul 01 00:00:00 EDT 1977 · Weed Sci.; (United States)

OSTI ID:5604120

Hodgson, R H; Hoffer, B L

Metabolites of diphenamid (N,N-dimethyl-2,2-diphenyl-acetamide) were purified from extracts of pepper plants (Capsicum frutescens L. Early Calwonder) treated via nutrient solution with the herbicide or several of its analogs. The major metabolites were characterized. Diphenamid was metabolized partially via a previously unreported pathway to N,N-dimethyl-2-phenyl-2-((hydroxyphenyl)-..beta..-0-D-glucosyl) acetamide and its monomethyl analog, and to N-hydroxy-methyl glycosides previously reported in other species. Ozone fumigation stimulated the production of both types of glycoside-conjugates. Leaves of plants that had been treated with 30 ..mu..M diphenamid and fumigated with ozone for 146 to 149 h contained 304 and 560 nmoles per gram of fresh weight of the hydroxyphenyl and N-hydroxymethyl conjugates, respectively. 7 references, 1 figure, 3 tables.

• Research Organization: Dept. of Agriculture, Fargo, ND
• OSTI ID: 5604120
• Journal Information: Weed Sci.; (United States), Vol. 25:4
• Country of Publication: United States
• Language: English

Related Subjects

63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
ACETAMIDE
METABOLISM
METABOLITES
OZONE
BIOLOGICAL EFFECTS
BIOLOGICAL PATHWAYS
CAPSICUM
CHRONIC EXPOSURE
HERBICIDES
LEAVES
AMIDES
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
PESTICIDES
PLANTS
560303* - Chemicals Metabolism & Toxicology- Plants- (-1987)