Metabolism of demeton S-methyl sulfoxide (metasystox R) in cell suspension cultures of sugar-beet |
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| Institution: | 1. Bayerische Landesanstalt für Ernährung, Menzinger Str. 54, D-8000 München 19, West Germany;2. Bayer AG Sparte Pflanzenschutz, Anwendungstechnik CE, Institut für Metabolismusforschung, Bayerwerk, D-5090 Leverkusen, West Germany;3. Bayer AG ZF- DZA, Bayerwerk, D-5090 Leverkusen, West Germany;1. Ibn-e-Sina Block, Department of Chemistry, University of Sargodha, Sargodha, 40100, Pakistan;2. Department of Chemistry, Khwaja Fareed University of Engineering & Information Technology, Rahim Yar Khan, 64200, Pakistan;3. Department of Chemistry, Division of Science and Technology, University of Education, Lahore, Pakistan;4. Departamento de Química Fundamental, Instituto de Química, Universidade de São Paulo, Avenida Professor LineuPrestes, 748, São Paulo, 05508-000, Brazil;5. Department of Chemistry, University of Okara, Okara, 56300, Pakistan;6. Ibn-ul-Hathim Block, Department of Physics, University of Sargodha, Sargodha, 40100, Pakistan;1. State Key Laboratory of Organic Geochemistry and Guangdong Key Laboratory of Environmental Resources Utilization and Protection, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou, 510640, China;2. University of Chinese Academy of Sciences, Beijing, 100049, China |
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| Abstract: | The insecticide demeton S-methyl sufoxide (I) is oxidized by sugar-beet cell cultures to demeton S-methy sulfone (II). Cleavage of the thioester bond of I and II formed ethanethiols which were transformed to S-methylated compounds or S-glucosides. In addition another two metabolites were identified: ethyl vinyl sulfoxide (V), via ß-elimination of 0,0-dimethyl thiophospate from the parent insecticide, and 1-(ethylsulfinyl)-2-(methylthio)] -ethane (VII). |
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