Calcium uptake in the skin of a freshwater teleost.
收藏PubMed Central1992-04-15 更新2026-05-16 收录
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https://pmc.ncbi.nlm.nih.gov/articles/PMC48923/
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资源简介：
The skin, particularly the opercular membrane of some teleosts, contains mitochondrion-rich "chloride" cells and has been widely used as a model to study branchial salt-extrusion mechanisms in seawater fish. Skin isolated from the operculum of the freshwater Nile tilapia (Oreochromis niloticus) can transport Ca2+ against an ionic and electrical gradient. Adaptation of Nile tilapia to a low-Ca2+ environment increased the capacity of the opercular membrane to transport Ca2+. The density of mitochondrion-rich cells increased in parallel with Ca2+ transport capacity. The results demonstrate net Ca2+ uptake by vertebrate skin and strongly implicate mitochondrion-rich cells as the site of Ca2+ uptake in fresh water. IMAGES:
提供机构：
National Academy of Sciences
创建时间：
1992-04-15
