STEP-UP AND STEP-DOWN PHOTORESPONSES IN BLEPHARISMA

被引：0
|
作者：
MATSUOKA, T
TANEDA, K
机构：
来源：
ZOOLOGICAL SCIENCE | 1992年 / 9卷 / 03期
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D O I：
暂无
中图分类号：
Q95 [动物学];
学科分类号：
071002 ;
摘要：
The cells of Blepharisma responded to a step-up in light intensity (step-up response) by ciliary reversal, while the cells showed a temporal repression of ciliary reversal which was accompanied by swimming acceleration when light intensity was suddenly decreased (step-down response). The step-up response occurred only in anterior fragments obtained by bisection of the cells, while the step-down response occurred in both of fragments. The topographical difference in photosensitivity indicates that the photoreceptor systems responsible for the step-up photophobic response might be different from those for the step-down photoresponse (repression of ciliary reversal accompanied by acceleration of swimming velocity).
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页码：529 / 532
页数：4
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