Lipids of different parts of the lamina of Laminaria japonica Aresch.
Lipids of different parts of the lamina of Laminaria japonica Aresch.
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DOI：
10.1515/bot.2000.008
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发表时间：
2000-01-01
期刊：
影响因子：
2.2
通讯作者：
Kulikova, IV
中科院分区：
文献类型：
--
作者：
Khotimchenko, SV;Kulikova, IV
对褐藻海带不同部位的脂肪酸和脂质组成进行了检测。藻叶下、中、上部的n-3系列和n-6系列多不饱和脂肪酸(PUFA)含量以及油酸含量存在显着差异。叶片的下部富含n-6 PUFA，而上部富含n-3 PUFA。叶中部的油酸和中性脂质含量最高。磷脂主要集中在叶片的下部，而糖脂集中在叶片的上部区域。糖脂组合物的检查表明存在单半乳糖基二酰基甘油、二半乳糖基二酰基甘油和磺基喹诺糖基二酰基甘油。已证实的主要磷脂是磷脂酰胆碱、磷脂酰乙醇胺、磷脂酰甘油、磷脂酰肌醇和磷脂酰羟乙基甘氨酸。这些化合物之间的关系在层板的不同部分有所不同。
Fatty acid and lipid composition of different parts of the lamina of the brown alga Laminaria japonica have been examined. Significant differences were found in the amount of polyunsaturated fatty acids (PUFAs) of n-3 and n-6 series as well as in the content of the oleic acid in the lower, middle and upper parts of algal blades. The lower parts of the lamina were rich in n-6 PUFAs, while upper parts were rich in n-3 PUFAs. The highest content of oleic acid as well as that of neutral lipids was found in the middle of the fronds. Phospholipids concentrated mostly in lower parts of the blades, while glycolipids concentrated in the upper zones of the lamina. Examination of the glycolipid composition showed the presence of monogalactosyldiacylglycerol, digalactosyldiacylglycerol and sulphoquinovosyldiacylglycerol. The main phospholipids proved to be phosphatidylcholine, phosphatidylethanolamine, phosphatidylglycerol, phosphatidylinositol and phosphatidylhydroxyethylglycine. The relationships between these compounds varied in different parts of the lamina.