EFFECT OF GREEN LIGHT TO LEAFLET MOVEMENT AND ELECTRICAL POTENTIAL ON THE PULVINULE IN KIDNEY BEAN.

探讨绿光对芸豆小叶运动的影响。通过带通滤光片将红光（red，大于600nm）、绿光（green, 500 ~ 600nm）、蓝光（blue，小于500nm）和分别从白光（white）中消除红、绿、蓝的光（-RED、-GREEN、-BLUE）照射到末端小叶的pulvinule上。通过测量照射30分钟后叶叶垂直角度（CVAL）和叶叶上下表面电位（EP）的变化来评价照射效果。在白色之后，绿色显示出较大的CVAL，这是最有效的，尽管红色和蓝色几乎没有影响CVAL。然而，-GREEN的效果与GREEN相同。-蓝色也会产生和白色一样的效果，但是-红色没有影响由于-GREEN和-BLUE包含了一个红光元素，而-RED则排除了一个红光元素，因此，不仅绿光与叶片运动有关，红光也与叶片运动有关。绿色和-绿色的EP模式与白色的模式相似，而不是红色和蓝色的模式。在开始照明后的3 ~ 5分钟内，EP向负电压方向变化，随后出现了普尔维勒规则下表面EP向正电压方向变化，而上表面EP未向正电压方向变化的极化现象。小叶下表面EP的变化与小叶的运动密切相关，因为-BLUE也发生了这种极化，导致CVAL很大。本研究结果表明，在小叶运动中存在两个作用光谱，即单独影响的绿色元素（500-600nm）和与其他元素共同影响的红色元素。

To make clear the effect of green light to the leaflet movement of Kidney bean (Phaseolus vulgaris L.) , illuminations of red light (RED ; more than 600nm) , green light (GREEN ; between 500 and 600nm) , blue light (BLUE ; less than 500nm) and lights (-RED,-GREEN and -BLUE) which were eliminated the red, green and blue lights from white light (WHITE) respectively, were conducted onto pulvinule of the terminal leaflet throughout band-pass filters. The effect was estimated by measuring change of vertical angle of the leaflet (CVAL) and electrical potential (EP) on upper and lower surfaces of the pulvinule during 30 minutes of the illumination.GREEN showed a large CVAL following WHITE that was the most effective, although RED and BLUE did not almost affect to CVAL.The effect of -GREEN was however the same as one of GREEN.-BLUE also resulted in the same effect as WHITE,but -RED did not affect. Because -GREEN and -BLUE included an element of red light and -RED excluded one, not only green light but also red light would relate to the leaflet movement.EP patterns of GREEN and -GREEN were similar to the pattern of WHITE rather than RED and BLUE.The EP changed toward minus voltage during 3-5 minutes just after starting of illumination, then showed the polarization that the EP on a lower surface of the pulvinule changed to plus voltage, but one on the upper surface did not. Change of EP on the lower surface of leaflet would closely relate to the leaflet movement, because such a polarization also occurred in -BLUE that resulted in a great CVAL.Result from this study suggested an existence of two action spectra on the leaflet movement, i.e., a green element (500-600nm) of light that affects independently, and a red element that affects with the other elements.