Function of Light in the Light-induced Geotropic Response in Zea Roots
- 1 February 1981
- journal article
- research article
- Published by Oxford University Press (OUP) in Plant Physiology
- Vol. 67 (2) , 225-228
- https://doi.org/10.1104/pp.67.2.225
Abstract
The light doses, just above the threshold energy value for inducing the geotropic responsiveness in the roots of Z. mays L., cv. Golden Cross Bantam 70, caused a drastic rise in the NADPH level, and a drop in the NADP level in 2 mm root tips. Some reducing agents lowered the threshold energy value up to about 1/3 of the control. Light may exert 2 functions in the geotropic response of Zea primary roots, one being the photochemical transformation of a photoreceptor and the other being the induction of a reduction state in the tissue.This publication has 8 references indexed in Scilit:
- Rapid, localized light effect on root growth in maizePlanta, 1978
- Spectral dependence of the light-induced geotropic response in Zea rootsPlanta, 1978
- A Rapid Phytochrome-dependent Reduction of Nicotinamide Adenine Dinucleotide Phosphate in Particle Fraction from Etiolated Bean HypocotylPlant Physiology, 1973
- CHANGES IN THE LEVELS OF NICOTINAMIDE NUCLEOTIDES AND IN ACTIVITIES OF NADP-DEPENDENT DEHYDROGENASES AFTER A BRIEF ILLUMINATION OF RED LIGHTDevelopment, Growth & Differentiation, 1969
- Substitution of Redox Chemicals for Radiation in Phytochrome-Mediated Photomorphogenesis1Plant Physiology, 1966
- Metabolic Control of TimingScience, 1963
- Pyridine Nucleotide Content in the Higher Plant. Effect of Age of TissuePlant Physiology, 1963
- A TPNH Diaphorase from chloroplastsArchives of Biochemistry and Biophysics, 1956