鱼类物种的系统位置以及神经节苷脂的组成和含量。

Systematic position of fish species and ganglioside composition and content.

作者信息

Avrova N F, Ghidoni R, Karpova O B, Nalivayeva N N, Malesci A, Tettamanti G

出版信息

Comp Biochem Physiol B. 1986;83(3):669-76. doi: 10.1016/0305-0491(86)90315-9.

Abstract

The ganglioside content in brain of cartilaginous and bony fishes studied varies from 110 to 581 and from 104 to 595 micrograms sialic acid per g of wet weight respectively. A high degree of alkali lability and the predominance of C18-sphingosine and N-acetylneuraminic acid are typical of fish brain gangliosides. A high content of oligosialogangliosides with four and more residues of sialic acid and the predominance of gangliosides with gangliotetraosyl carbohydrate chain are characteristic for teleost brain. No pronounced difference was revealed in ganglioside composition and content of clupeomorphs and percomorphs. Gangliosides with short (lactosyl and gangliotriaosyl) carbohydrate chain predominate in brain of all cartilaginous fishes studied. A statistically significant difference was found in ganglioside content, relative oligosialoganglioside content and ganglioside fatty acid composition of squalomorphs and rajiformes, on one hand, and dasyatiformes and galeomorphs, on the other hand.

摘要

所研究的软骨鱼类和硬骨鱼类大脑中的神经节苷脂含量分别为每克湿重110至581微克和104至595微克唾液酸。鱼脑神经节苷脂的典型特征是具有高度的碱不稳定性以及C18 - 鞘氨醇和N - 乙酰神经氨酸占主导地位。具有四个及以上唾液酸残基的低聚唾液酸神经节苷脂含量高以及具有神经节四糖碳水化合物链的神经节苷脂占主导地位是硬骨鱼脑的特征。在鲱形目和鲈形目的神经节苷脂组成和含量方面未发现明显差异。在所研究的所有软骨鱼类大脑中，具有短（乳糖基和神经节三糖基）碳水化合物链的神经节苷脂占主导地位。一方面，角鲨目和鳐形目的神经节苷脂含量、相对低聚唾液酸神经节苷脂含量和神经节苷脂脂肪酸组成，与另一方面的鲼形目和真鲨目的相比，存在统计学上的显著差异。