Plant and Cell Physiology, 1984, Vol. 25, No. 6 1053-1058
© 1984
Article |
Returning Dark-Induced Cell Cycle to the Beginning of G1 Phase by Red Light Irradiation in Fern Adiantum Protonemata
Biology Department, Faculty of Science, Tokyo Metropolitan University Fukazawa, Tokyo 158, Japan
In filamentous protonemata of Adiantum capillus-veneris L. precultured under continuous red light, the progression of cell cycle which was induced by transferring the protonemata to the dark was inhibited and the phase returned to the beginning of G1 by red light irradiation unless the cell cycle had progressed to a "point of no return" which coincides with the beginning of S phase. The effect of red light was reversed by subsequent far-red light. Typical red far-red reversibility indicates that the photoreceptive pigment is phytochrome.
(Received May 17, 1984; Accepted June 21, 1984)
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