镁离子和钙离子对光诱导的眼虫鞭毛反应的影响。
Effects of Mg2+ and Ca2+ on photoinduced Euglena flagellar responses.
作者信息
Nichols K M, Jacklet A, Rikmenspoel R
出版信息
J Cell Biol. 1980 Feb;84(2):355-63. doi: 10.1083/jcb.84.2.355.
Abstract
The flagellar frequency and waveform of Euglena were analyzed under full illumination (420-700 nm) and in a restricted wavelength band (530-700 nm) when the cells were in a medium containing Mg2+ or had been microinjected with Mg2+, Mn2+, or Ca2+ in solution. Magnesium abolished the change in flagellar frequency and the reversal in waveform that cells exhibit when illuminated by a 530-700 nm wavelength band. Under this restricted illumination, Ca2+ caused an increase in flagellar waveform reversal and a decrease in beating frequency. The flagellar motility of cells impaled on a microelectrode was examined in cells illuminated with various wavelengths.
摘要
在用含Mg2+的培养基培养细胞或向细胞显微注射溶液中的Mg2+、Mn2+或Ca2+后，在全光照（420 - 700nm）以及在受限波段（530 - 700nm）下，分析了眼虫的鞭毛频率和波形。镁消除了细胞在530 - 700nm波段光照时所表现出的鞭毛频率变化和波形反转。在这种受限光照下，Ca2+导致鞭毛波形反转增加，摆动频率降低。在用各种波长光照的细胞中，检测了刺入微电极的细胞的鞭毛运动。
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