从食物链角度看海天使（Clione limacina）和豆形海若螺（Paedoclione doliiformis）中的类胡萝卜素

Carotenoids of sea angels Clione limacina and Paedoclione doliiformis from the perspective of the food chain.

作者信息

Maoka Takashi, Kuwahara Takashi, Narita Masanao

机构信息

Research Institute for Production Development, Shimogamo-Morimoto-cho 15, Sakyo-ku, Kyoto 606-0805, Japan.

Okhotsk Sea Ice Museum of Hokkaido, Motomombetsu, Monbetsu, Hokkaido 094-0023, Japan.

出版信息

Mar Drugs. 2014 Mar 13;12(3):1460-70. doi: 10.3390/md12031460.

DOI:10.3390/md12031460

PMID:24633249

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC3967221/

Abstract

Sea angels, Clione limacina and Paedoclione doliiformis, are small, floating sea slugs belonging to Gastropoda, and their gonads are a bright orange-red color. Sea angels feed exclusively on a small herbivorous sea snail, Limacina helicina. Carotenoids in C. limacina, P. doliiformis, and L. helicina were investigated for comparative biochemical points of view. β-Carotene, zeaxanthin, and diatoxanthin were found to be major carotenoids in L. helicina. L. helicina accumulated dietary algal carotenoids without modification. On the other hand, keto-carotenoids, such as pectenolone, 7,8-didehydroastaxanthin, and adonixanthin were identified as major carotenoids in the sea angels C. limacina and P. doliiformis. Sea angels oxidatively metabolize dietary carotenoids and accumulate them in their gonads. Carotenoids in the gonads of sea angels might protect against oxidative stress and enhance reproduction.

摘要

海天使，即裸海蝶和多尔海蝶，是属于腹足纲的小型浮游海蛞蝓，它们的性腺呈鲜艳的橙红色。海天使仅以一种小型食草海蜗牛——海若螺为食。从比较生物化学的角度对裸海蝶、多尔海蝶和海若螺中的类胡萝卜素进行了研究。发现β-胡萝卜素、玉米黄质和二羟基叶黄素是海若螺中的主要类胡萝卜素。海若螺积累膳食中的藻类类胡萝卜素而不进行修饰。另一方面，酮类类胡萝卜素，如扇贝酮、7,8-二脱氢虾青素和阿多尼黄素，被确定为裸海蝶和多尔海蝶这两种海天使中的主要类胡萝卜素。海天使对膳食中的类胡萝卜素进行氧化代谢并将它们积累在性腺中。海天使性腺中的类胡萝卜素可能有助于抵御氧化应激并促进繁殖。