The role of membrane lipids in the resistance of clapsing-leaved pondweed (Potamogeton perfoliatus L.) to excess of cadmium in water
The role of membrane lipids in the resistance of clapsing-leaved pondweed (Potamogeton perfoliatus L.) to excess of cadmium in water
复制标题
DOI：
10.1007/s10525-005-0029-y
复制
发表时间：
2005-03
期刊：
影响因子：
0.5
通讯作者：
O. Rozentsvet;S. V. Murzaeva;I. Gushchina
中科院分区：
文献类型：
--
作者：
O. Rozentsvet;S. V. Murzaeva;I. Gushchina
研究了镉在1 ~ 1000µM浓度范围内对覆叶塘草（Potamogeton perfoliatusL.）的影响。结果表明p。在3天的时间里，perfoliius叶片积累了镉。这一过程伴随着叶片形态的变化。不同生物化学代谢物对镉的敏感性不同。低浓度镉（1µM和10µM）提高了蛋白质、总脂质和光合色素含量，高浓度镉（100µM和1000µM）降低了总脂质和色素含量，但提高了蛋白质含量。根据对镉的敏感性，将结构脂类分为三组：抗性（中性、磷脂酰甘油、双半乳糖二酰甘油和亚脂），其含量在镉存在时增加；不稳定（单半乳糖二酰基甘油、磷脂酰胆碱和磷脂酰肌醇）；而且不耐药（磷脂酰乙醇胺）。结论是脂质成分决定了p的抗性。perfoliatusto镉。
The effect of cadmium on clapsinng-leaved pondweed (Potamogeton perfoliatusL.) within the concentration range of 1–1000 µM was studied. It was shown thatP. perfoliatusleaves accumulated cadmium during three days. This process was accompanied by changes in leaf morphology. The sensitivity of biochemical metabolites to cadmium was different. Low concentrations of cadmium (1 and 10 µM) increased the content of protein, total lipids, and photosynthetic pigments, whereas high concentrations (100 and 1000 µM) decreased the content of total lipids and pigments but increased protein content. Based on cadmium sensitivity, structural lipids were divided into three groups—resistant (neutral, phosphatidylglycerol, digalactosyldiacylglycerol, and sulfolipid), the content of which increased in the presence of cadmium; labile (monogalactosyldiacylglycerol, phosphatidylcholine, and phosphatidylinositol); and nonresistant (phosphatidylethanolamine). It is concluded that the lipid component determines the resistance ofP. perfoliatusto cadmium.