Lipid conversions during enrichment of Artemia
Lipid conversions during enrichment of Artemia
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DOI：
10.1016/s0044-8486(99)00004-6
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发表时间：
1999-04-15
期刊：
影响因子：
4.5
通讯作者：
Amat, F
中科院分区：
文献类型：
--
作者：
Navarro, JC;Henderson, RJ;Amat, F
将卤虫无节幼体用放射性标记的脂肪酸乙酯富集24小时，然后在随后的24小时内挨饿。对富集期结束时和随后的饥饿后采集的样品中脂质放射性分布的分析表明，在无节幼体的同化过程中，乙酯很容易转化为其他脂质类别，主要是三酰甘油。在饥饿期间，游离脂肪酸和磷脂中恢复的放射性比例增加，表明来自三酰甘油的脂肪酸被动员用于分解代谢和生物膜脂质的形成。无节幼体脂肪酸中 [U-C-14]22:6n - 3 的放射性分布模式表明，卤虫能够将 22:6n - 3 逆向转化为 20:5n - 3。 (C) 1999 Elsevier Science B.V. 保留所有权利。
Artemia nauplii were enriched for 24 h with radiolabelled fatty acid ethyl esters and then starved for a subsequent period of 24 h. Analyses of the distribution of radioactivity in lipids from samples taken at the end of the enrichment period and after the subsequent starvation showed that the ethyl esters were readily converted into other lipid classes, mainly triacylglycerols, during assimilation by the nauplii. The proportions of radioactivity recovered in free fatty acids and phospholipids increased during the starvation period indicating the mobilisation of fatty acids from triacylglycerols for use in catabolism and in the formation of biomembrane lipids. The distribution pattern of radioactivity from [U-C-14]22:6n - 3 in the fatty acids of the nauplii demonstrates that Artemia are capable of retroconverting 22:6n - 3 to 20:5n - 3. (C) 1999 Elsevier Science B.V. All rights reserved.