Influence of extremely low frequency electromagnetic fields on the swimming behavior of ciliates

被引：0
|
作者：
Hemmersbach, R [1 ]
Becker, E [1 ]
Stockem, W [1 ]
机构：
[1] UNIV BONN,INST CELL BIOL,BONN,GERMANY
来源：
BIOELECTROMAGNETICS | 1997年 / 18卷 / 07期
关键词：
Paramecium; Loxodes; Tetrahymena; pawn mutant; ion channels;
D O I：
10.1002/(SICI)1521-186X(1997)18:7<491::AID-BEM4>3.0.CO;2-Y
中图分类号：
Q [生物科学];
学科分类号：
07 ; 0710 ; 09 ;
摘要：
Different species of ciliates (Paramecium biaurelia, Loxodes striatus, Tetrahymena thermophila) have been taken as model systems to study the effects of extremely low-frequency electromagnetic fields (50 Hz, 0.5-2.0 mT) on the cellular level. A dose-dependent increase in the mean swimming velocity and a decrease in the linearity of cell tracks were observed in all wild-type cells. In contrast, field-exposure did not increase the number of directional turns of the Paramecium tetraurelia pawn mutant (d4-500r), which is characterized by defective Ca2+-channels. The described changes indicate a direct effect of low frequency electromagnetic fields on the transport mechanisms of the cell membrane for ions controlling the motile activity of cilia. (C) 1997 Wiley Liss, Inc.
引用
收藏
页码：491 / 498
页数：8
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