Metabolism of chlorsulfuron by plants: Biological basis for selectivity of a new herbicide for cereals

A major factor responsible for the selectivity of chlorsulfuron [2-chloro- N-[(4-methoxy-6-methyl-1,3,5-triazin-2-yl)aminocarbonyl]benzenesulfonamide] (formerly DPX-4189), as a postemergence herbicide for small grains is the ability of the crop plants to metabolize the herbicide. Chlorsulfuron is th...

Full description

Saved in:
Bibliographic Details
Published inPesticide biochemistry and physiology Vol. 17; no. 1; pp. 18 - 23
Main Authors Sweetser, P.B., Schow, G.S., Hutchison, J.M.
Format Journal Article
LanguageEnglish
Published Elsevier Inc 01.01.1982
Online AccessGet full text

Cover

More Information
Summary:A major factor responsible for the selectivity of chlorsulfuron [2-chloro- N-[(4-methoxy-6-methyl-1,3,5-triazin-2-yl)aminocarbonyl]benzenesulfonamide] (formerly DPX-4189), as a postemergence herbicide for small grains is the ability of the crop plants to metabolize the herbicide. Chlorsulfuron is the active ingredient in Du Pont “Glean” weed killer. Tolerant plants such as wheat, oats, and barley rapidly metabolize chlorsulfuron to a polar, inactive product. This metabolite has been characterized as the O-glycoside of chlorsulfuron in which the phenyl ring has undergone hydroxylation followed by conjugation with a carbohydrate moiety. Sensitive broadleaf plants show little or no metabolism of chlorsulfuron.
Bibliography:H
H60
ISSN:0048-3575
1095-9939
DOI:10.1016/0048-3575(82)90121-3