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首页> 外文期刊>Fisheries Science >Distribution of lipids and fatty acids in the zooxanthellae and host of the soft coral Sinularia sp.
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Distribution of lipids and fatty acids in the zooxanthellae and host of the soft coral Sinularia sp.

机译：虫黄藻和软珊瑚Sinularia sp。宿主中脂质和脂肪酸的分布。

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摘要

The lipid classes and the fatty acid (FA) compositions of the zooxanthellae, the host tissue, and intact coral were determined for the first time in a soft coral, Sinularia sp. The contents of monoalkyldiacylglycerol (MADAG), triacylglycerol, and polar lipids differed significantly between the zooxanthellae and the host fractions. The zooxanthellae were rich in polar lipids, whereas neutral lipids were concentrated in the host. MADAG comprised 35% of the host lipids and was practically absent in zooxanthellae. Hence, MADAG is only synthesized in animal tissues and serves as a biomarker for the host in the host–zooxanthellae association of these soft corals. Similar to the zooxanthellae of reef-building corals, the main FA in the zooxanthellae of Sinularia sp. were 18:4n-3, 20:5n-3, and 22:6n-3. In addition, 16:3n-4 and 16:4n-1 (8.9% in total) were found in these zooxanthellae. The ratios of 16:3n-4, 16:4n-1, 18:4n-3, 20:5n-3, and 22:6n-3 in the zooxanthellae to those in the host tissue were 4.2, 11.2, 10.1, 11.0, and 9.1, respectively. The proportions of some FA and lipid classes in the intact coral and its fractions showed that zooxanthellate lipids comprised 36 ± 15% of the total lipids in Sinularia sp. Two tetracosapolyenoic acids (24:5n-6 and 24:6n-3) are proposed as a biomarkers of the animal tissue and indicators of the purity of the zooxanthellae fractions from soft corals.
机译：虫黄藻，宿主组织和完整珊瑚的脂质类别和脂肪酸（FA）组成是在软珊瑚Sinularia sp。中首次确定的。虫黄藻与宿主级分之间的单烷基二酰基甘油（MADAG），三酰基甘油和极性脂质的含量存在显着差异。虫黄藻富含极性脂质，而中性脂质则集中在宿主体内。 MADAG包含35％的宿主脂质，实际上在黄原虫中是不存在的。因此，MADAG仅在动物组织中合成，并且在这些软珊瑚的宿主-拟恶黄藻关联中充当宿主的生物标记。类似于珊瑚礁的珊瑚黄藻，Sinularia sp。的动物黄藻的主要FA。是18：4n-3、20：5n-3和22：6n-3。此外，在这些虫黄藻中发现了16：3n-4和16：4n-1（总计8.9％）。虫黄藻与宿主组织中的16：3n-4、16：4n-1、18：4n-3、20：5n-3和22：6n-3的比例分别为4.2、11.2、10.1、11.0和9.1。在完整的珊瑚及其部分中，某些脂肪酸和脂质类别的比例表明，黄原酸酯脂质占Sinularia sp。中总脂质的36±15％。提出了两种四粘聚多烯酸（24：5n-6和24：6n-3）作为动物组织的生物标志物和软珊瑚虫黄藻级分纯度的指示剂。

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