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PWWP domain-containing protein Crf4-3 specifically modulates fungal azole susceptibility by regulating sterol C-14 demethylase ERG11. [PDF]
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Photolysis of chlorimuron‐ethyl
Toxicological & Environmental Chemistry, 1997To examine the photostability of the herbicide chlorimuron‐ethyl (ethyl‐2‐[[[[(4‐methoxy‐6‐chloro‐pyrimidin‐2‐yl)amino]carbonyl]amino]sulfonyl]benzoate) in the field, model experiment with organic solvent was performed. Photolysis of chlorimuron‐ethyl in methanol solution resulted in the formation of seven major and five minor photoproducts, isolated ...
Partha P. Choudhury, P. Dureja
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Chlorimuron ethyl metabolism in corn
Pesticide Biochemistry and Physiology, 1991Abstract [14C]Chlorimuron ethyl was readily absorbed by the roots of young intact corn seedlings and through the cut ends of excised leaves, but it was not readily absorbed by intact leaves. Under the conditions employed, [14C]chlorimuron ethyl was metabolized at a moderate rate in both intact roots and excised leaves (ca.
Gerald L. Lamoureux +2 more
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Effects of Tillage on Chlorimuron Persistence
Weed Science, 1996Field studies were conducted in Mississippi on a Marietta loam during 1988, 1989, and 1990, and in Tennessee on a Statler loam during 1988 and 1989, to determine effect of tillage on chlorimuron persistence. A corn shoot bioassay was conducted to determine bioavailable chlorimuron in the soil.
Todd A. Baughman +3 more
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Photolysis of chlorimuron‐ethyl in benzene
Toxicological & Environmental Chemistry, 1997Chlorirauron‐ethyl, a sulfonylurea herbicide was irradiated by ultra violet light from a medium pressure Hg lamp (>290 nm) in benzene solution using a quartz apparatus. Three major and six minor products were identified by spectroscopic methods. These products are formed by cleavage of sulfonylurea bridge, rearrangement, dechlorination etc. The rate of
Partha P. Choudhury, P. Dureja
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Reaction of chlorimuron‐ethyl with diazomethane
Toxicological & Environmental Chemistry, 1996Methylation of chlorimuron‐ethyl with etheral solution of diazomethane gave ethyl‐2‐[[[[(4‐chloro‐6‐methoxy‐2‐pyrimidinyl) N‐methylamino] carbonyl] N‐methylamino] sulfonyl] benzoate (dimethyl derivative of chlorimuron‐ethyl) as the major product along with 4‐chloro‐6‐methoxy‐2‐N‐methylamino pyrimidine, 2‐aminomethyl sulfonyl benzoic acid, ethyl‐2‐[(N ...
Partha P. Choudhury, Prem Dureja
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Dissipation of Chlorimuron in Southern Soils
Weed Science, 1994Chlorimuron dissipation as determined by bioavailability in nine soils across the Southern United States was characterized by rapid initial loss followed by a slower dissipation rate following field application of the herbicide in soybean. The rate of bioavailable dissipation varied by year and soil The calculated time for 50% dissipation of ...
William K. Vencill, Philip A. Banks
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Phototransformation of chlorimuron-ethyl on leaf surface
Toxicological & Environmental Chemistry, 2007Chlorimuron-ethyl, a post-emergent herbicide selectively used in soybean and maize, degrades mainly through chemical hydrolysis. Photolysis has also an important role in the degradation of this compound. Phototransformation of chlorimuron-ethyl takes place through the cleavage of the sulfonylurea bridge, dechlorination, de-esterification and ...
Partha P. Choudhury +2 more
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Phototransformation of Chlorimuron-ethyl in Aqueous Solution
Journal of Agricultural and Food Chemistry, 1996Chlorimuron-ethyl is relatively stable in water buffered to pH 7.0 and 9.0, but hydrolyzes readily (half-life, 14 d) in water buffered to pH 4.0. In addition, chlorimuron-ethyl photodegrades rapidly and extensively in aqueous solution. The predominant photoproducts are 4-methoxy-6-chloro-2-aminopyrimidine, ethyl 2-aminosulfonylbenzoate, N-(4-methoxy-6 ...
Partha P. Choudhury, Prem Dureja
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