Light and Stomatal Metabolism
Open Access
- 1 March 1983
- journal article
- research article
- Published by Oxford University Press (OUP) in Plant Physiology
- Vol. 71 (3), 456-459
- https://doi.org/10.1104/pp.71.3.456
Abstract
The effect of sulfite and arsenite on stomatal opening and light modulation of enzymes was examined in isolated epidermal strips of Pisum sativum L. var Little Marvel leaves. Sulfite or arsenite at 10 micromolar rapidly inhibited the stomatal opening process in light. Light activation of phosphoenolpyruvate carboxylase and NADP-malate dehydrogenase was completely diminished when the epidermal strips were incubated for 2 hours in light with either sulfite or arsenite at 10 micromolar. The data obtained suggest that the inhibition of stomatal opening by sulfite or arsenite in light might result from the inhibition of light modulation of key enzymes in guard cells.This publication has 2 references indexed in Scilit:
- Stomatal Response and Leaf Injury of Pisum sativum L. with SO2 and O3 ExposuresPlant Physiology, 1981
- Light Modulation of Enzyme Activity in ChloroplastsPlant Physiology, 1976