Plant Physiol. Illumina
HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
QUICK SEARCH:   [advanced]


     

Plant Physiology 70:927-931 (1982)
© 1982 American Society of Plant Biologists

This Article
Right arrow Full Text (PDF)
Right arrow Alert me when this article is cited
Right arrow Alert me if a correction is posted
Services
Right arrow Email this article to a friend
Right arrow Similar articles in this journal
Right arrow Similar articles in Web of Science
Right arrow Similar articles in PubMed
Right arrow Alert me to new issues of the journal
Right arrow Download to citation manager
Right arrow reprints & permissions
Citing Articles
Right arrow Citing Articles via HighWire
Right arrow Citing Articles via CrossRef
Right arrow Citing Articles via Web of Science (68)
Right arrow Citing Articles via Google Scholar
Google Scholar
Right arrow Articles by Furbank, R. T.
Right arrow Articles by Osmond, C. B.
Right arrow Search for Related Content
PubMed
Right arrow PubMed Citation
Right arrow Articles by Furbank, R. T.
Right arrow Articles by Osmond, C. B.
Agricola
Right arrow Articles by Furbank, R. T.
Right arrow Articles by Osmond, C. B.
Articles

Photosynthetic Oxygen Exchange in Isolated Cells and Chloroplasts of C3 Plants

Robert T. Furbank, Murray R. Badger and C. Barry Osmond

Department of Environmental Biology, Research School of Biological Sciences, Australian National University, P. O. Box 475, Canberra City A. C. T. 2601 Australia

Photosynthetic O2-production and photorespiratory O2-uptake were measured, using stable isotope techniques, in isolated intact leaf cells of the C3 plant Xanthium strumarium L., and isolated intact chloroplasts of Spinacia oleracea L (var. Yates 102). Considerable light dependent O2-uptake was observed in both systems, a proportion of which could be suppressed by CO2 (63% suppression in chloroplasts by 50 micromolar CO2, 58% in cells by 100 micromolar CO2 and 250 micromolar O2). At low O2, O2-uptake was CO2 insensitive. At high CO2 up to 19% of total electron flow was to O2 in cells and up to 14% in chloroplasts. O2-uptake showed inhibition by KCN (61% in cells, 35% in chloroplasts by 0.2 millimolar KCN). O2-uptake half saturated at 75 to 85 micromolar O2 in cells and 50 to 65 micromolar O2 in chloroplasts, at low CO2. The results are discussed in terms of the RuP2-oxygenase reaction and direct photoreduction of O2 via a Mehler reaction.




This article has been cited by other articles:


Home page
 J PLANKTON RESHome page
T. Fujiki, T. Suzue, H. Kimoto, and T. Saino
Photosynthetic electron transport in Dunaliella tertiolecta (Chlorophyceae) measured by fast repetition rate fluorometry: relation to carbon assimilation
J. Plankton Res., February 1, 2007; 29(2): 199 - 208.
[Abstract] [Full Text] [PDF]

Home page
 Plant Cell PhysiolHome page
A. Makino, C. Miyake, and A. Yokota
Physiological Functions of the Water-Water Cycle (Mehler Reaction) and the Cyclic Electron Flow around PSI in Rice Leaves
Plant Cell Physiol., September 15, 2002; 43(9): 1017 - 1026.
[Abstract] [Full Text] [PDF]

Home page
 J Exp BotHome page
S. A. Ruuska, M. R. Badger, T. J. Andrews, and S. von Caemmerer
Photosynthetic electron sinks in transgenic tobacco with reduced amounts of Rubisco: little evidence for significant Mehler reaction
J. Exp. Bot., February 1, 2000; 51(90001): 357 - 368.
[Abstract] [Full Text]

Home page
 Plant Physiol.Home page
W. Leggat, M. R. Badger, and D. Yellowlees
Evidence for an Inorganic Carbon-Concentrating Mechanism in the Symbiotic Dinoflagellate Symbiodinium sp.
Plant Physiology, December 1, 1999; 121(4): 1247 - 1255.
[Abstract] [Full Text]


HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
ASPB Publications PLANT PHYSIOLOGY® THE PLANT CELL
Copyright © 1982 by the American Society of Plant Biologists