Analytical Method for Diphenyl Ether Herbicides in Fish and Shellfish
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چکیده
منابع مشابه
Protoporphyrinogen oxidase as a molecular target for diphenyl ether herbicides.
Diphenyl ether herbicides induce an accumulation of protoporphyrin IX in plant tissues. By analogy to human porphyria, the accumulation could be attributed to decreased (Mg or Fe)-chelatase or protoporphyrinogen oxidase activities. Possible effects of acifluorfen-methyl on these enzymes were investigated in isolated corn (maize, Zea mays) etioplasts, potato (Solanum tuberosum) and mouse mitocho...
متن کاملInhibition of photosynthetic electron transport by diphenyl ether herbicides.
The effects of the diphenyl ether herbicides HOE 29152 (methyl-2[4-(4-trifluoromethoxy) phenoxy] propanoate) and nitrofluorfen (2-chloro-1-[4-nitrophenoxy]-4-[trifluoromethyl]benzene) on photosynthetic electron transport have been examined with pea seedling and spinach chloroplasts. Linear electron transport (water to ferricyanide or methylviologen) is inhibited in treated chloroplasts, but nei...
متن کاملKinetic studies on protoporphyrinogen oxidase inhibition by diphenyl ether herbicides.
Diphenyl ethers (DPEs) and related herbicides are powerful inhibitors of protoporphyrinogen oxidase, an enzyme involved in the biosynthesis of haems and chlorophylls. The inhibition kinetics of protoporphyrinogen oxidase of various origins by four DPEs, (methyl)-5-[2-chloro-4-(trifluoromethyl)phenoxy]-2-nitrobenzoic acid (acifluorfen and its methyl ester, acifluorfen-methyl), methyl-5-[2-chloro...
متن کاملPolybrominated Diphenyl Ether Residue Analysis Method for Fish Tissues from Remote, High Elevation Ecosystems
Introduction Polybrominated Diphenyl Ethers (PBDEs) are a class of compounds used as flame retardants in synthetic materials whose production has been increasing substantially in the last two decades (Figure 1). Some PBDEs have shown persistent, bioaccumulative, and toxic properties (PBT). These compounds have been measured in urban and rural areas around the globe at low, but increasing levels...
متن کاملPhotosynthesis involvement in the mechanism of action of diphenyl ether herbicides.
Photosynthesis is not required for the toxicity of diphenyl ether herbicides, nor are chloroplast thylakoids the primary site of diphenyl ether herbicide activity. Isolated spinach (Spinacia oleracea L.) chloroplast fragments produced malonyl dialdehyde, indicating lipid peroxidation, when paraquat (1,1'-dimethyl-4,4'-bipyridinium ion) or diuron [3-(3,4-dichlorophenyl)-1,1-dimethylurea] were ad...
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ژورنال
عنوان ژورنال: Food Hygiene and Safety Science (Shokuhin Eiseigaku Zasshi)
سال: 1981
ISSN: 0015-6426,1882-1006
DOI: 10.3358/shokueishi.22.56