Observational and Experimental Studies of the Meristem of Leguminous Plants I. Effects of Acetylcholine, Red Light and Far-Red Light Upon the Protoplasts of Root Tip Meristem

Abstract

The literature has reported some attempts which have been made to inspect ACh1in plant bodies from a biochemical and pharmacological viewpoint (Fiedler et al. 1953, Lin 1957, Appel et al. 1959, Tulus 1961, Tomczyk 1964, Saxena et al. 1966, Hartmann 1971). Recently, Jaffe (1970) has shown that ACh is capable of mimicking red light with reference to some physiological functions of mung bean root tip. Evans (1972, 1973) has investigated the growth regulation ability of ACh on the action of indole-3-acetic acid in the promotion of Avena coleoptile cell elongation. Furthermore, according to others (Bieth et al. 1969, Gressel et al. 1971), ACh has some connection with the morphogenesis of several plants. By employing histological and cytological techniques, the present author was able to find the histological effects of exogenous ACh, and of red light and also of far-red light upon the protoplasts of the meristem of root tip of mung bean primary root. © 1978, Japan Mendel Society, International Society of Cytology. All rights reserved.