Endogenous ABA in Growing Maize Roots: Light Effects
- 1 February 1989
- journal article
- research article
- Published by Oxford University Press (OUP) in Plant Physiology
- Vol. 89 (2) , 622-627
- https://doi.org/10.1104/pp.89.2.622
Abstract
The growth of intact maize (Zea mays L.) roots and the abscisic acid (ABA) content measured by gas chromatography-mass spectrometry of the root tip were analyzed after a white-light treatment. The decrease of the elongation rate due to the illumination corresponded to a concomitant increase in the ABA found in the root. When selecting roots, on the basis of their growth rate, it was possible to show that the relation between growth and ABA content, previously reported in darkness was conserved after light treatments. Therefore, light decreased the root growth rate while it simultaneously increased the ABA content in the roots. This increase was higher than expected, demonstrating the complexity of the involvement of ABA on root growth.This publication has 6 references indexed in Scilit:
- Effect on Root Growth of Endogenous and Applied IAA and ABAPlant Physiology, 1987
- Growth, graviresponsiveness and abscisic-acid content of Zea mays seedlings treated with fluridone.1984
- Rapid effect of osmotic stress on the content and exodiffusion of abscisic acid in Zea mays rootsPlant Science Letters, 1983
- Elongation and gravireaction of intact and segmented roots: light effectsPhysiologia Plantarum, 1982
- Abscisic acid distribution in horizontal maize root segmentsPlanta, 1981
- Light and dark georeaction of maize roots: effect and endogenous level of abscisic acidPlant Science Letters, 1980