Abstract

Changes in the composition of reserve and membrane lipids in the gills of freshwater mussel Anodonta cygnea L., 1758 in response to the effect of copper at different concentrations (5, 50, 100, and 250 μg/L) are studied. Modifications in the content of phospholipids and their fatty acids depended on the duration of the copper effect: the unsaturation of phospholipids fatty acids increased on the 1st day of copper exposure and decreased on the 3rd day. By the end of the experiment (on the seventh day), changes in the lipid composition were determined by the copper concentration: relatively low concentrations (5 and 50 μg/L) caused a decrease in the unsaturation of fatty acids in phospholipids, while the high copper concentration (250 μg/L), on the contrary, contributed to its increase. It is shown that the transformation of the structural organization of membrane lipids and their fatty acids in A. cygnea under the effect of copper at different concentrations is based on internal reserves (triacylglycerols) and the additional synthesis of unsaturated fatty acids.

中文翻译：

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铜在不同浓度下对淡水贻贝无性繁殖体the腮脂质组成的变化

摘要

淡水贻贝Anodonta cygnea theill中储备脂质和膜脂成分的变化研究了L.，1758在不同浓度（5、50、100和250μg/ L）下对铜的影响。磷脂及其脂肪酸含量的变化取决于铜效应的持续时间：磷脂脂肪酸的不饱和度在铜暴露的第一天增加，在第三天减少。到实验结束时（第七天），铜的浓度决定了脂质组成的变化：相对较低的浓度（5和50μg/ L）导致磷脂中脂肪酸的不饱和度降低，而相反，高铜浓度（250μg/ L）有助于铜的增加。结果表明，猕猴桃膜脂及其脂肪酸的结构组织转变 铜在不同浓度下的作用是基于内部储备（三酰基甘油）和不饱和脂肪酸的额外合成。