The Role of Aquatic Ecosystems as a Source of Omega-3 Polyunsaturated Fatty Acids for the Sand Lizard Lacerta agilis (Linnaeus, 1758) Inhabiting a Shore Biotope.

IF 0.8 4区 生物学 Q4 BIOCHEMISTRY & MOLECULAR BIOLOGY
O S Dimenko, A E Rudchenko, E V Borisova, A D Tupikova, N N Sushchik
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引用次数: 0

Abstract

The composition and content of fatty acids of the sand lizard (Lacerta agilis) and its potential food objects in the shore and steppe biotopes were studied. For the first time, it was established that the content of long-chain omega-3 polyunsaturated fatty acids, primarily eicosapentaenoic acid (EPA), significantly increases in the tissues of lizards from a shore biotope during the period of emergence of amphibious insects from the nearby saline Lake Shira. Among all the food sources of lizards, the highest EPA content was found in chironomid imago. The content of docosahexaenoic acid (DHA) in the muscles of the lizards was also high, although this acid was not detected in the invertebrates that the lizards consumed. In this regard, it was assumed that the sand lizard is able to biosynthesize DHA from biochemical precursors contained in food.

水生生态系统对生活在海岸生物群落中的沙蜥(Lacerta agilis)的Omega-3多不饱和脂肪酸来源的作用(Linnaeus, 1758)。
对滨岸和草原生境中沙蜥及其潜在捕食对象的脂肪酸组成和含量进行了研究。首次证实,在邻近的咸水湖设拉湖出现两栖昆虫期间,来自海岸生物群落的蜥蜴组织中长链omega-3多不饱和脂肪酸,主要是二十碳五烯酸(EPA)的含量显著增加。在蜥蜴的所有食物来源中,螯蜥的EPA含量最高。在蜥蜴的肌肉中二十二碳六烯酸(DHA)的含量也很高,尽管这种酸在蜥蜴食用的无脊椎动物中没有检测到。在这方面,人们假设沙蜥能够从食物中含有的生化前体中合成DHA。
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来源期刊
Doklady Biochemistry and Biophysics
Doklady Biochemistry and Biophysics 生物-生化与分子生物学
CiteScore
1.60
自引率
12.50%
发文量
68
审稿时长
6-12 weeks
期刊介绍: Doklady Biochemistry and Biophysics is a journal consisting of English translations of articles published in Russian in biochemistry and biophysics sections of the Russian-language journal Doklady Akademii Nauk. The journal''s goal is to publish the most significant new research in biochemistry and biophysics carried out in Russia today or in collaboration with Russian authors. The journal accepts only articles in the Russian language that are submitted or recommended by acting Russian or foreign members of the Russian Academy of Sciences. The journal does not accept direct submissions in English.
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