水中氨基酸:水生动物的吸收和功能作用
Robert A Griffin1, Chris N Glover1,2, Jenelle D McCuaig1
1Department of Biological Sciences, University of Alberta, 11455 Saskatchewan Drive, Edmonton, Alberta T6G 2E9, Canada.
The Journal of experimental biology
|October 16, 2023
概括
水生动物可以通过表皮细胞运输体直接从水中吸收溶解的氨基酸. 这种被忽视的营养来源支持透调节,新陈代谢和其他各种海洋生物群中的重要功能.
科学领域:
- 海洋生物学 海洋生物学
- 生物化学 生物化学
- 水生生态学 水生生态学
背景情况:
- 溶解的有机物,包括氨基酸,在水生环境中是丰富的.
- 水生生物可以吸收像氨基酸这样的小营养分子.
- 皮质载体促进氨基酸的吸收,通常与度梯度相抵触.
研究的目的:
- 研究溶解氨基酸在水生动物营养中的作用.
- 探索海洋生物从水中直接吸收氨基酸的途径.
主要方法:
- 该研究审查了关于水生动物溶解有机物和营养素吸收的现有文献.
- 它确定了各种海洋类,其中直接氨基酸吸收途径被建议.
- 它讨论了被吸收的氨基酸的已知和假定的功能.
主要成果:
- 直接溶解氨基酸吸收的途径存在于广泛的海洋类 (例如,Porifera到Chordata).
- 表面上皮质的载体 (携带载体,单载体,反载体) 参与了这种吸收过程.
- 吸收的氨基酸起着至关重要的作用,包括透调节,低氧耐受性,贝形成和新陈代谢.
结论:
- 溶解的氨基酸是水生动物重要的,但经常被忽视的营养资源.
- 直接吸收机制凸显了水生生态系统中溶解有机物的重要性.
- 需要对这些传送器的分子和机械方面的进一步研究.
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