文章基本信息

标题：Photic Stimulation of Intracellular cAMP-Dependent Protein Kinase in Paramecium
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作者：Masakazu Shimamoto ; Kenji Hasegawa ; Yasuo Tsukahara 等
期刊名称：Interdisciplinary Information Sciences
印刷版ISSN：1340-9050
电子版ISSN：1347-6157
出版年度：1996
卷号：2
期号：2
页码：169-173
DOI：10.4036/iis.1996.169
出版社：The Editorial Committee of the Interdisciplinary Information Sciences
摘要：The cellular concentration of Paramecium protein kinase A (PKA) exhibits a bi-modal pattern in a 12-h light and 12-h dark cycle, with peaks around midday and immediately after dusk, in contrast to that measured in constant darkness (DD) which exhibits a mono-phasic pattern with a trough after subjective midday and a peak around subjective midnight. The bi-modal increases in PKA concentration caused by the onset (dawn) and offset (dusk) of illumination might contribute discrete phase-advances of the motility rhythm in P. multimicronucleatum . Fluctuation of PKA concentrations in DD is significantly related to that of frequency of changing moving-direction, on which PKA concentrations elevated during illumination may be additively observed to cause the bi-modal pattern.
关键词：Circadian motility rhythm;Frequency of avoiding reaction;PKA;Swimming velocity;Paramecium