CRAYFISH RETINULAR CELLS - INFLUENCE OF EXTRACELLULAR-SODIUM AND CALCIUM UPON RECEPTOR POTENTIAL

被引：7
|
作者：
HERNANDEZFALCON, J [1 ]
FUENTESPARDO, B [1 ]
机构：
[1] NATL AUTONOMOUS UNIV MEXICO,FAC MED,DEPT FISIOL,DIV POSGRADO & INVEST,APDO POSTAL 70250,MEXICO CITY 04510,DF,MEXICO
来源：
COMPARATIVE BIOCHEMISTRY AND PHYSIOLOGY A-PHYSIOLOGY | 1991年 / 100卷 / 04期
关键词：
D O I：
10.1016/0300-9629(91)90299-R
中图分类号：
Q5 [生物化学]; Q7 [分子生物学];
学科分类号：
071010 ; 081704 ;
摘要：
1. In crayfish, light stimulation of the retinular cells induces a depolarizing receptor potential. 2. Experiments were designed to determine the role of Na+ and Ca2+ on receptor potential during dark and light states. 3. Depolarization depends on Na+ and Ca2+ availability to the retinular cell. 4. Repolarization velocity and response duration depend on extracellular Ca2+ availability. 5. Light adaptation increases receptor potential dependence on calcium and sodium ions. 6. We analyse these results with respect to other invertebrate photoreceptors.
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页码：823 / 832
页数：10
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