Weber U, Engelmann W, Mayer W E
Institut für Botanik, Universität Tübingen, Germany.
Chronobiol Int. 1992 Aug;9(4):269-77. doi: 10.3109/07420529209064537.
The period (approximately 3-5 min) of the ultradian rhythm of the lateral leaflet movement of Desmodium motorium is strongly lengthened (less than or equal to 30-40%) by the K+ channel blocker tetraethylammoniumchloride (20, 30, and 40 mM) and vanadate (0.5 and 1 mM), which is an effective inhibitor of the plasma membrane-bound H+ pump. The alkali ions K+, Na+, Rb+, and Cs+ (10-40 mM) shorten the period only slightly (less than or equal to 10-15%). Li+ (5-30 mM), however, increases the period of the leaflet rhythm drastically (less than or equal to 80%). We concluded that the plasmalemma-H(+)-ATPase-driven K+ transport through K+ channels is an essential component of the ultradian oscillator of Desmodium, as has been proposed for the circadian oscillator.
运动山蚂蝗侧小叶运动的超日节律周期（约3 - 5分钟），被钾离子通道阻滞剂四乙铵氯化物（20、30和40 mM）以及钒酸盐（0.5和1 mM）显著延长（小于或等于30 - 40%），钒酸盐是质膜结合氢离子泵的有效抑制剂。碱金属离子钾离子、钠离子、铷离子和铯离子（10 - 40 mM）仅略微缩短周期（小于或等于10 - 15%）。然而，锂离子（5 - 30 mM）会大幅增加小叶节律的周期（小于或等于80%）。我们得出结论，质膜 - H(+) - ATP酶驱动的钾离子通过钾离子通道的转运是运动山蚂蝗超日振荡器的重要组成部分，正如对昼夜振荡器所提出的那样。
