The biodegradation of fenitrothion (an organophosphorus pesticide) in garden soil of western Uttar Pradesh in northern India has been studied. Both natural and autoclaved soil were treated with 10 p.p.m. of fenitrothion at field capacity moisture and incubated for 90 days in glass containers at 25 a
The microbial biodegradation of paraquat in soil
โ Scribed by Ricketts, Dean C
- Publisher
- John Wiley and Sons
- Year
- 1999
- Tongue
- English
- Weight
- 127 KB
- Volume
- 55
- Category
- Article
- ISSN
- 1526-498X
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โฆ Synopsis
ase is sex-dependent, since only male rats formed the disulfate conjugate. Sex-related differences have been reported for the activity of some phenol sulfotransferases in rat liver. 9 For instance, large amounts of phenol sulfotransferase 1 were found for both sexes while large amounts of phenol sulfotransferase 2 were restricted to males. 10 However, it remains to be determined which sex-speciยฎc sulfotransferase is involved in the formation of the disulfate conjugate M2.
CONCLUSION
Cyprodinil is rapidly excreted, principally in the urine, after a single oral administration. Excretion of the administered dose is independent of the dose level and the sex. The major Phase I metabolites are conjugated with sulfate. Only male rats form a disulfate conjugate, suggesting a sex dimorphism in the activity of a speciยฎc sulfotransferase that catalyzes the transfer of the second sulfate group.
๐ SIMILAR VOLUMES
Among 15 soils with different cropping practices, seven which had an history of repeated atrazine applications showed accelerated degradation of this herbicide. By contrast, grassland or agricultural soils with no recorded atrazine application, at least for the last three years, had a low degradatio
Gelatin films that had been chemically modified (crosslinked with formaldehyde, glyoxal, glutaraldehyde, hexamethylene diisocyanate, butadiene diepoxide, or diepoxyoctane) were tested for their biodegradability by soil burial testing in a laboratory environment under temperature and humidity control
The persistence of vinclozolin in three tropical rice soils, widely varying in their physicochemical characteristics, was compared under both non-ยฏooded and ยฏooded conditions. Degradation of the fungicide was more rapid in all the soils under ยฏooded conditions than under non-ยฏooded conditions. Kinet