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A New DDT-metabolizing Enzyme in the German Cockroach1,2

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A new microsomal enzyme system capable of converting DDT to a Kelthane-like product has been found in the German cockroach, Blattella qermanica (L.). Kelthane® is 4,4'-dichloro-alpha- (trichloromethyl)-benzhydrol. The system requires oxygen, reduced triphosphopyridine nucleotide, magnesium ions and nicotinamide for activity. The enzyme(s) is also present in several strains of the house fly (Musca dornestica L.) as well as in the American cockroach, Periplaneta americana (L.).

Document Type: Research Article

Publication date: April 1, 1961

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  • Journal of Economic Entomology is published bimonthly in February, April, June, August, October, and December. The journal publishes articles on the economic significance of insects and is divided into the following sections: apiculture & social insects; arthropods in relation to plant disease; forum; insecticide resistance and resistance management; ecotoxicology; biological and microbial control; ecology and behavior; sampling and biostatistics; household and structural insects; medical entomology; molecular entomology; veterinary entomology; forest entomology; horticultural entomology; field and forage crops, and small grains; stored-product; commodity treatment and quarantine entomology; and plant resistance. In addition to research papers, Journal of Economic Entomology publishes Letters to the Editor, interpretive articles in a Forum section, Short Communications, Rapid Communications, and Book Reviews.
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