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Metabolism of 14C-Pronamide in the Soil and in Lettuce (Lactuca sativa) under Field Conditions

Published online by Cambridge University Press:  12 June 2017

Jean Rouchaud ,
Chantal Moons ,
Frans Benoit ,
Norbert Ceustermans  and
Henri Maraite
Jean Rouchaud
Affiliation:
Univ. Cath. Louvain, Louvain-la-Neuve, Belgium
Chantal Moons
Affiliation:
Univ. Cath. Louvain, Louvain-la-Neuve, Belgium
Frans Benoit
Affiliation:
St. Kathelijne-Waver, Belgium
Norbert Ceustermans
Affiliation:
St. Kathelijne-Waver, Belgium
Henri Maraite
Affiliation:
Phytopathol. Univ. Cath. Louvain
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Abstract

Metabolism of 14C-pronamide [N-(1,1-dimethylpropynyl)-3,5-dichlorobenzamide, carbonyl- 14C] was studied in silt loam soil (located in Louvain-la-Neuve, Belgium) and in lettuce (Lactuca sativa L., ‘Appia′, Clause3) from a crop planted in soil that had been treated before planting. During the experiment, most of the 14C remained in the 0- to 6-cm soil layer. The percentage of 14C-pronamide degraded to 14CO2 during the experiment was less than 10%. The soil-extractable 14C was made up of pronamide and its first ketone metabolite [N-(1,1-dimethylacetonyl)-3,5-dichlorobenzamide]. About 30% of the pronamide present in the soil was bound to the soil. The bound residue, i.e., the 14C that could not be extracted by acetone, at lettuce harvest was about 80% of the 14C contained in the soil at that time; 3,5-dichlorobenzoic acid was the main component of the bound residue. The harvested lettuce also contained pronamide, the ketone, and 3,5-dichlorobenzoic acid. Similar kinetics of metabolism were observed with lettuces grown on loamy sand soil (located in St. Kathelijne-Waver, Belgium). However, pronamide was not bound to this type of soil.

Keywords

Ketone metabolite3,5-dichlorobenzoic acid bound residuerepeated culturesaccumulation
Type
Physiology, Chemistry, and Biochemistry
Information
Weed Science , Volume 35 , Issue 4 , July 1987 , pp. 469 - 475
Copyright
Copyright © 1987 by the Weed Science Society of America 

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References

Literature Cited

1. Eagle, D. J. 1981. Residue problems encountered in England. Pages 201–207 in Eagle, D. J., ed. Pract. Use Soil Appl. Herbic. Symp. Eur. Weed Res. Soc., Paris, France.Google Scholar
2. Easton, N. R., Cassady, D. R., and Dillard, R. D. 1965. Acetylenic amines. XII. Some new reactions of acylaminoacetylenes. J. Org. Chem. 30:3084–3088.CrossRefGoogle Scholar
3. Fisher, J. D. 1974. Metabolism of the herbicide pronamide in soil. J. Agric. Food Chem. 22:606–608.Google Scholar
4. Jamet, P. 1984. Etude simultanee de la dégradation et de la mobilité d' un pesticide et de ses principaux metabolites dans le sol. Pages 163–164. INRA (Institut National de la Recherche Agronomique, France), Behaviour and side effects of pesticides in soil. Symp. June 1984, Versailles, France.Google Scholar
5. Raznikiewicz, T. 1963. On the synthesis of α-methoxy-2,4-dichlorophenylacetic acid and α-methoxy-3,5-dichloro-phenylacetic acid. Arkiv. för Kemi. 21:301–307.Google Scholar
6. Rouchaud, J., Moons, C., and Meyer, J. A. 1985. Synthesis of 14C-propyzamide. J. Labeled Compd. Radiopharm. In press.Google Scholar
7. Rouchaud, J., Moons, C., and Meyer, J. A. 1982. Effects of soil treatment with the insecticide chlorfenvinphos and of covering of the culture with plastic film on the provitamin A content of early carrots. J. Agric. Food Chem. 30:1036–1038.CrossRefGoogle Scholar
8. Walker, A. 1978. Simulation of the persistence of eight soil-applied herbicides. Weed Res. 18:305–313.CrossRefGoogle Scholar
9. Walker, A. and Thompson, J. A. 1977. The degradation of simazine, linuron and propyzamide in different soils. Weed Res. 17:399–405.CrossRefGoogle Scholar
10. Yih, R. Y., Swithenbank, C., and McRae, D. H. 1970. Transformations of the herbicide N-(1,1-dimethylpropynyl)-3,5-dichlorobenzamide in soil. Weed Sci. 18:604–607.CrossRefGoogle Scholar
11. Yih, R. Y. and Swithenbank, C. 1971. Identification of metabolites of N-(1,1-dimethylpropynyl)-3,5-dichlorobenzamide in soil and alfalfa. J. Agric. Food Chem. 19:314–319.Google Scholar
12. Zandvoort, R., Van Dord, D. C., Leistra, M., and Verlaat, J. G. 1979. The decline of propyzamide in soil under field conditions in the Netherlands. Weed Res. 19:157–164.CrossRefGoogle Scholar