Comparative metabolism of the pyrethroids bifenthrin and deltamethrin in the bulb mite Rhizoglyphus robini

The fate of {sup 14}C-radiolabeled bifenthrin and deltamethrin was studied in the mite, Rhizoglyphus robini. Administered either by ingestion or by contact, both pyrethroids were efficiently metabolized, but deltamethrin was degraded to a much greater extent. The identified metabolites arise from a...

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Veröffentlicht in:Journal of agricultural and food chemistry 1988-09, Vol.36 (5), p.1040-1043
Hauptverfasser: Ruzo, Luis O, Cohen, Ephraim, Capua, Shlomo
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container_issue 5
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container_title Journal of agricultural and food chemistry
container_volume 36
creator Ruzo, Luis O
Cohen, Ephraim
Capua, Shlomo
description The fate of {sup 14}C-radiolabeled bifenthrin and deltamethrin was studied in the mite, Rhizoglyphus robini. Administered either by ingestion or by contact, both pyrethroids were efficiently metabolized, but deltamethrin was degraded to a much greater extent. The identified metabolites arise from a combination of ester cleavage, oxidation, and conjugation reactions. With {sup 14}C-acid- and {sup 14}C-alcohol-labeled bifenthrin, the free metabolites detected were the 4{prime}-hydroxy derivative of the ester, the primary ester cleavage products, the acid, and its 4{prime}-hydroxy derivative from the alcohol moiety, as well as several unidentified metabolites. Using {sup 14}C-alcohol-labeled deltamethrin, 3-phenoxybenzoic acid and its 4{prime}-hydroxylated product and several unknown metabolites were detected. Conjugates comprised the bulk of total pyrethroid metabolites. In addition to ester cleavage products, the 4{prime}-hydroxylated bifenthrin was also identified. For the first time in invertebrates, a conjugated pyrethroid ester was observed.
doi_str_mv 10.1021/jf00083a033
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Agric. Food Chem</addtitle><description>The fate of {sup 14}C-radiolabeled bifenthrin and deltamethrin was studied in the mite, Rhizoglyphus robini. Administered either by ingestion or by contact, both pyrethroids were efficiently metabolized, but deltamethrin was degraded to a much greater extent. The identified metabolites arise from a combination of ester cleavage, oxidation, and conjugation reactions. With {sup 14}C-acid- and {sup 14}C-alcohol-labeled bifenthrin, the free metabolites detected were the 4{prime}-hydroxy derivative of the ester, the primary ester cleavage products, the acid, and its 4{prime}-hydroxy derivative from the alcohol moiety, as well as several unidentified metabolites. Using {sup 14}C-alcohol-labeled deltamethrin, 3-phenoxybenzoic acid and its 4{prime}-hydroxylated product and several unknown metabolites were detected. Conjugates comprised the bulk of total pyrethroid metabolites. 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Psychology</topic><topic>Generalities</topic><topic>INSECTICIDAS</topic><topic>INSECTICIDE</topic><topic>INSECTICIDES</topic><topic>INVERTEBRATES</topic><topic>ISOTOPE APPLICATIONS</topic><topic>LABELLED COMPOUNDS</topic><topic>LUTTE ANTI-PARASITE</topic><topic>METABOLISM</topic><topic>METABOLISME</topic><topic>METABOLISMO</topic><topic>METABOLITES</topic><topic>MITES</topic><topic>PEST CONTROL</topic><topic>PEST MITES</topic><topic>PESTICIDES</topic><topic>Physical control</topic><topic>Phytopathology. Animal pests. Plant and forest protection</topic><topic>PIRETRINAS</topic><topic>Protozoa. Invertebrates</topic><topic>PYRETHRINE</topic><topic>PYRETHRINS</topic><topic>TRACER TECHNIQUES</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Ruzo, Luis O</creatorcontrib><creatorcontrib>Cohen, Ephraim</creatorcontrib><creatorcontrib>Capua, Shlomo</creatorcontrib><collection>AGRIS</collection><collection>Istex</collection><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>OSTI.GOV</collection><jtitle>Journal of agricultural and food chemistry</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Ruzo, Luis O</au><au>Cohen, Ephraim</au><au>Capua, Shlomo</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Comparative metabolism of the pyrethroids bifenthrin and deltamethrin in the bulb mite Rhizoglyphus robini</atitle><jtitle>Journal of agricultural and food chemistry</jtitle><addtitle>J. Agric. Food Chem</addtitle><date>1988-09-01</date><risdate>1988</risdate><volume>36</volume><issue>5</issue><spage>1040</spage><epage>1043</epage><pages>1040-1043</pages><issn>0021-8561</issn><eissn>1520-5118</eissn><coden>JAFCAU</coden><abstract>The fate of {sup 14}C-radiolabeled bifenthrin and deltamethrin was studied in the mite, Rhizoglyphus robini. Administered either by ingestion or by contact, both pyrethroids were efficiently metabolized, but deltamethrin was degraded to a much greater extent. The identified metabolites arise from a combination of ester cleavage, oxidation, and conjugation reactions. With {sup 14}C-acid- and {sup 14}C-alcohol-labeled bifenthrin, the free metabolites detected were the 4{prime}-hydroxy derivative of the ester, the primary ester cleavage products, the acid, and its 4{prime}-hydroxy derivative from the alcohol moiety, as well as several unidentified metabolites. Using {sup 14}C-alcohol-labeled deltamethrin, 3-phenoxybenzoic acid and its 4{prime}-hydroxylated product and several unknown metabolites were detected. Conjugates comprised the bulk of total pyrethroid metabolites. In addition to ester cleavage products, the 4{prime}-hydroxylated bifenthrin was also identified. For the first time in invertebrates, a conjugated pyrethroid ester was observed.</abstract><cop>Washington, DC</cop><pub>American Chemical Society</pub><doi>10.1021/jf00083a033</doi><tpages>4</tpages></addata></record>
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ispartof Journal of agricultural and food chemistry, 1988-09, Vol.36 (5), p.1040-1043
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1520-5118
language eng
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source ACS Publications
subjects 553003 - Agriculture & Food Technology- Pest & Disease Control- (1987-)
60 APPLIED LIFE SCIENCES
ACARIEN NUISIBLE
ACAROS NOCIVOS
ANIMALS
ARACHNIDS
ARTHROPODS
Biological and medical sciences
CARBON 14 COMPOUNDS
Control
CONTROL DE PLAGAS
Fundamental and applied biological sciences. Psychology
Generalities
INSECTICIDAS
INSECTICIDE
INSECTICIDES
INVERTEBRATES
ISOTOPE APPLICATIONS
LABELLED COMPOUNDS
LUTTE ANTI-PARASITE
METABOLISM
METABOLISME
METABOLISMO
METABOLITES
MITES
PEST CONTROL
PEST MITES
PESTICIDES
Physical control
Phytopathology. Animal pests. Plant and forest protection
PIRETRINAS
Protozoa. Invertebrates
PYRETHRINE
PYRETHRINS
TRACER TECHNIQUES
title Comparative metabolism of the pyrethroids bifenthrin and deltamethrin in the bulb mite Rhizoglyphus robini
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