Seasonal photoperiodism in vertebrates: from coincidence to amplitude

被引：76

作者：

Hazlerigg, DG ^{[1
]}

Wagner, GC ^{[1
]}

机构：

[1] Univ Aberdeen, Aberdeen AB24 2TZ, Scotland

来源：

TRENDS IN ENDOCRINOLOGY AND METABOLISM | 2006年 / 17卷 / 03期

基金：

英国生物技术与生命科学研究理事会;

关键词：

D O I：

10.1016/j.tem.2006.02.004

中图分类号：

R5 [内科学];

学科分类号：

1002 [临床医学]; 100201 [内科学];

摘要：

In vertebrates living in regions that range from tropical to polar zones, the day length (photoperiod) is a powerful synchronizer of seasonal changes in endocrine and metabolic physiology. This seasonal photoperiodism depends on the responses of internal circadian clocks to changing patterns of light-dark exposure, which can be conceptualized in the form of 'coincidence-timing' models. The structural basis for this timing function is formed by a specialized 'photoperiodic axis' that links light reception to the neurciendocrine system. In this review we describe the essential elements of this axis in mammals and birds, and discuss recent progress in understanding the cellular and molecular mechanisms through which this axis transduces photoperiodic change into altered endocrine output.

引用

收藏

页码：83 / 91

页数：9

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