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KMID : 0903519840270020064
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Journal of the Korean Society of Agricultural Chemistry and Biotechnology
1984 Volume.27 No. 2 p.64 ~ p.72
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Degradation of the Herbicide , Alachlor , by Soil Microorganisms
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Abstract
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Alachlor, 2-chloro-2, ´6´-diethyl-N-(methoxymethyl) acetanilide, which had been incubated in the flooded paddy soils yielded 1-formyl-2,3-dihydro-7-ethylindole, 2,6-dietliylaniline, 2,6-diethylacetanilide, 2,6-diethyl-N-(methoxymethyl) acetanilide, 2-hydroxy-2, ´6´-diethyl-N-(methoxymethyl) acetanilide, and three unidentifiable compounds as its degradation products. The water-soluble products of Alachlor in soil suspensions increased with incubation periods and similar results were obtained from the incubation of Rhizoctonia solani, as verified by use of the ring -^(14)C-labeled Alachlor. Streptomyces lavendulae Ru 3340-8 produced 2-hydroxy-2, ´6´-diethyl-N-(methoxymethyl) acetanilide as the major degradation product as much as 25%, whereas Bacillus brevis IFO 3331, Bacillus cruciviae, and Pseudomonas putida did not produce it.
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