Cellular aspects of molluskan biochronometry

被引：14

作者：

Whitmore, D

Block, GD

机构：

[1] NSF Center for Biological Timing, Department of Biology, University of Virginia, Charlottesville

来源：

SEMINARS IN CELL & DEVELOPMENTAL BIOLOGY | 1996年 / 7卷 / 06期

基金：

美国国家卫生研究院; 美国国家科学基金会;

关键词：

Aplysia; Bulla; circadian; entrainment; retina;

D O I：

10.1006/scdb.1996.0096

中图分类号：

Q2 [细胞生物学];

学科分类号：

071009 ; 090102 ;

摘要：

The eyes of the marine gastropods Aplysia californica and Bulla gouldiana contain circadian clocks. In both organisms retinal circadian rhythms are generated by individual neurons that express a circadian rhythm in impulse frequency. Phase control of the rhythm, either by light or by serotonin, is mediated by changes in membrane potential affecting a transmembrane calcium flux. Whereas transmembrane ionic fluxes underlie pacemaker entrainment and expression, the generation of the circadian rhythm involves molecular transcription and translation. Both processes appear to be elements in a feedback loop generating the circadian cycle. (C) 1996 Academic Press Ltd.

引用

页码：781 / 789

页数：9

共 55 条

[21] CALCIUM CHANNELS MEDIATE PHASE-SHIFTS OF THE BULLA CIRCADIAN PACEMAKER [J].