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Published online by Cambridge University Press: 12 June 2017
Herbicide effects on chromate leakage from liposomes prepared from crude soybean [Glycine max (L.) Merr.] phosphatidylcholine were determined over a concentration range of 2.5 × 10-5 to 5.0 × 10-3 M. Dye levels in the dialysate were measured spectrophotometrically (370 nm) after 1 h. Barban (4-chloro-2-butynyl-m-chlorocarbanilate) at 2.5 to 5.0 × 10-4 M and PCP (pentachlorophenol) at 0.5 to 1.0 × 10-3 M induced significant leakage. MCPB {4-[(4-chloro-o-tolyl)oxy] butyric acid}, 2,4,5-T [(2,4,5-trichlorophenoxy)acetic acid], and ioxynil (4-hydroxy-3,5-diiodobenzonitrile), all at 2.5 × 10-3 M, also caused dye leakage, but metolachlor [2-chloro-N-(2-ethyl-6-methylphenyl)-N-(2-methoxy-1-methylethyl)acetamide] induced dye leakage only at 3.0 to 5.0 × 10-3M. Nitrofen (2,4-dichlorophenyl-p-nitrophenyl ether) and atrazine [2-chloro-4-(ethylamino)-6-(isopropylamino)-s-triazine] were least effective over the concentration range tested.