Physiology of Rapid Movements in Higher Plants
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Among the various behaviors in higher plants, a peculiar one, that a part of the leaf or flower in certain plants shows very rapid movement upon stimulus, has invited the attention of a number of investigators since the beginning of botanical research. However, in spite of this long history of study, numerous fundamental aspects of the phenomena remain to be clari fied. Since the definition of the rapid movement is still unclear, discussion in this review will be restricted to three types of the movements: (a) rapid response in the pulvini of the mimosas; (b) shutting movement in the traps of two carnivores, Dionaea and Aldrovanda ( an aquatic plant); and (c) visible movements in the stamen and pistil of some plants upon stimulus. This review is not intended to be a comprehensive resume of all published works on the movements. I intend to restrict my discussion to a consider ation of various results in an attempt to discover a general mechanism un derlying these movements, and will stress the relation between electrical re sponse and the movement. Several reviews and monographs have been published that approach this problem from various points of view (18, 19, 24, 42, 101, 103 ) , including the author's own works (11, 71) . In this review I will return to some of the important older literature which provides a basis for understanding the mechanism.
[1] J. C. Bose,et al. The Nervous Mechanism of Plants , 1926, Nature.