Effects of Light and Darkness on Gaseous Exchange of Bean Leaves
- 1 July 1964
- journal article
- research article
- Published by Oxford University Press (OUP) in Plant Physiology
- Vol. 39 (4) , 523-527
- https://doi.org/10.1104/pp.39.4.523
Abstract
Gaseous exchange fates of excised bean leaves (Phaseolus vulgaris) were determined in light and darkness using mass spectro-metric techniques. Labelled oxygen (O2 18) and carbon dioxide (C13O2) were employed in order to measure simultaneously the photosynthetic and respiratory rates in the light. Illumination at 300 ft-c depressed the rate of CO2 evolution and accelerated the rate of O2 consumption relative to rates measured in darkness. Increasing the light intensity to 1500 ft-c did not modify these rates further. As the leaves approached maturity, the rates of respiratory CO2 evolution and O2 consumption in the dark decreased. When measured in the light, however, the rate of CO2 evolution remained constant while the rate of O2 consumption declined with maturity.This publication has 16 references indexed in Scilit:
- Photosynthesis and respirationArchives of Biochemistry and Biophysics, 1963
- A mass spectrometer inlet system for sampling gases dissolved in liquid phasesArchives of Biochemistry and Biophysics, 1963
- Oxygen Dependency of in vivoPhotophosphorylationNature, 1962
- Appearance of glycolate and related products of photosynthesis outside of chloroplastsArchives of Biochemistry and Biophysics, 1962
- STUDIES ON PHOTOSYNTHETIC PROCESSES .1. EFFECT OF LIGHT INTENSITY ON TRIPHOSPHOPYRIDINE NUCLEOTIDE REDUCTION, ADENOSINE TRIPHOSPHATE FORMATION, AND CARBON DIOXIDE ASSIMILATION IN SPINACH CHLOROPLASTS1962
- Oxidative Enzymes of Spinach ChloroplastsPlant Physiology, 1960
- The Relationship of Glycolic Acid to Respiration and Photosynthesis in Tobacco LeavesJournal of Biological Chemistry, 1959
- Oxidative Photosynthetic Phosphorylation by Spinach ChloroplastsJournal of Biological Chemistry, 1959
- Inhibition of aconitase by glyoxylate plus oxaloacetateBiochemical Journal, 1959
- THE RELATIVE RATES OF PHOTOSYNTHETIC ASSIMILATION OF ISOTOPIC FORMS OF CARBON DIOXIDEPlant Physiology, 1952