Studies of pesticides effects on Chlorella metabolism II. Effect of DCMU on galactolipid metabolism |
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Authors: | Sumida, Seizo Yoshida, Ryo Ueda, Minoru |
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Affiliation: | Research Department, Pesticides Division, Sumitomo Chemical Co., Ltd. 4-2-1 Takatsukasa, Takarazuka-shi, Hyogo-ken 665, Japan |
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Abstract: | DCMU (N'-(3,4-dichlorophenyl)-N, N-dimethylurea) was testedfor effects on the metabolism of galactolipids in Chlorellaand chloroplasts isolated from higher plants. In Chlorella,DCMU affected galactolipid synthesis in the light more thanthat of other lipids, but it showed no effect on lipid synthesisin the dark. DCMU did not affect the turnover of galactolipidsin the light. In vitro studies using 14C-acetate or 14C-UDP-galactoseas a precursor showed that DCMU had no effect on the synthesisof gross lipid or galactolipids in chloroplasts isolated fromhigher plants. The significance of these observations are discussed. (Received September 21, 1974; ) |
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