Active transport of Rb+ across skin of the teleost Gillichthys mirabilis.
Active transport of Rb+ across skin of the teleost Gillichthys mirabilis.
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铷在硬骨鱼 Gillichthys mirabilis 皮肤上的主动运输。
DOI：
10.1152/ajprenal.1981.241.5.f482
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发表时间：
1981
期刊：
影响因子：
--
通讯作者：
Marshall,WS
中科院分区：
文献类型：
--
作者：
Marshall,WS
测量了86 Rb在鳃鱼离体皮肤上的通量。在含有1.0 mM RbCl的Cl Ringer中，86 Rb的流出量超过流入量8.0 +/- 1.2 neq。厘米-2。h ~（-1），表明Rb ~+在分泌方向上的主动转运。然而，净Rb+流量是没有显着不同的零（无氯）葡萄糖酸林格氏液，表明活性Rb+运输是Cl依赖。上皮细胞表现为一个单一的被动电阻Rb+的情况下，Cl-，Rb+的运动在这些条件下出现的Fickean扩散。肾上腺素（10（-5）M）可部分抑制Cl Ringer细胞的Rb ~+主动转运。这些结果表明，有积极的K+跨鳃鱼皮肤运输。
The fluxes of 86Rb were measured across the isolated skin of the marine teleost Gillichthys. The efflux of 86Rb in Cl Ringer with 1.0 mM RbCl exceeded the influx by 8.0 +/- 1.2 neq . cm-2 . h-1 at closed circuit, indicating active transport of Rb+ in the secretory direction. However, the net Rb+ flux was not significantly different from zero in (Cl-free) gluconate Ringer, indicating that the active Rb+ transport was Cl dependent. The epithelium behaved as a single passive resistor to Rb+ in the absence of Cl-, and Rb+ movement under these conditions appeared to be by Fickean diffusion. Epinephrine (10(-5) M) inhibited partially the active Rb+ transport in Cl Ringer. These results suggest that there is active K+ transport across Gillichthys skin.