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科伦博拉 Sinella dubiosa 生产了埃可萨丁酸

Yuya Ohhara¹, Chiemi Sagisaka², Kimiko Yamakawa-Kobayashi¹

¹School of Food and Nutritional Sciences, University of Shizuoka, Shizuoka 422-8526, Japan; Graduate School of Integrated Pharmaceutical and Nutritional Sciences, University of Shizuoka, Shizuoka 422-8526, Japan.

Comparative biochemistry and physiology. Part B, Biochemistry & molecular biology

|September 9, 2023

概括

像Collembola这样的陆地无脊椎动物可以产生必需的omega-3多不和脂肪酸 (n-3PUFA),特别是eicosapentaenoic acid (EPA). 这一发现表明,土壤微关节动物是陆地食物网中重要的EPA来源.

科学领域:

生物化学生物化学
生态生态学生态生态学
动物学动物学

背景情况:

欧米茄-3多不和脂肪酸 (n-3PUFA),如乙酸 (EPA),是脊椎动物的关键营养素.
虽然微藻是众所周知的生产者,但水生无脊椎动物也表现出n-3 PUFA生物合成能力.
陆地无脊椎动物中n-3PUFA的产生在很大程度上仍未被探索.

研究的目的:

研究陆地无脊椎动物,特别是科伦博拉 (Sinella dubiosa) 合成n-3PUFA的能力.
为了确定Collembola是否可以独立于他们的饮食产生EPA.

主要方法:

在缺乏n-3PUFA的酒酵母饮食上养育Sinella dubiosa.
分析Sinella dubiosa的脂肪酸组成.
利用同位素标记的脂肪酸来追踪代谢途径.

主要成果:

在Sinella dubiosa中检测到埃可萨氨酸 (EPA).
辛内拉杜比奥萨 (Sinella dubiosa) 将食中的油酸,酸和酸代谢成EPA.
酵母饮食只提供和和单不和脂肪酸,表明内生EPA合成.

结论:

科伦博拉,如Sinella dubiosa,拥有n-3PUFA合成的生化途径.
这些土壤微关节动物可以成为陆地生态系统中EPA的重要来源.
这项研究突出了土壤食物网中营养物质转移的新途径.

关键词:

科伦博拉 (Collembola) 是一个结合体.美国环保署 EPA EPA 普法普法是一只小熊.这种植物名为Sinella dubiosa.

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