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


     

Plant Physiology 65:1036-1038 (1980)
© 1980 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 CrossRef
Right arrow Citing Articles via Web of Science (11)
Right arrow Citing Articles via Google Scholar
Google Scholar
Right arrow Articles by Rogers, C.
Right arrow Articles by Powell, R. D.
Right arrow Search for Related Content
PubMed
Right arrow PubMed Citation
Right arrow Articles by Rogers, C.
Right arrow Articles by Powell, R. D.
Agricola
Right arrow Articles by Rogers, C.
Right arrow Articles by Powell, R. D.
Articles

Dark Opening of Stomates of Vicia faba in CO2-free Air

EFFECT OF TEMPERATURE ON STOMATAL APERTURE AND POTASSIUM ACCUMULATION 1

Cynthia Rogers

Peter J. H. Sharpe2 and Robert D. Powell3

Department of Biology, Houston Baptist University, Houston, Texas 77074, Texas A&M University System, College Station, Texas 77843

Leaf epidermal strips of Vicia faba were floated on 10 millimolar KCl at temperatures of 10 to 45 C for several time periods in the dark. For the duration of the experiment, a jet of water-saturated, CO2-free air was passed over the strips. The width of the stomatal aperture was measured microscopically and the potassium content was estimated and expressed as the percentage of area of the guard cell pair stained with cobaltinitrite. Stomatal opening in the dark occurred at temperatures above 35 C. The high temperature aperture reduction previously observed at 45 C in the light was not observed in the dark. Potassium accumulation occurred at all temperatures except 10 C, with a maximum at 45 C, which appeared functionally different from that seen previously in the light.

2 Biosystems Research Division, Bioengineering Program.

3 Department of Plant Sciences, Texas Agricultural Experiment Station.

1 This work was supported by the Division of Environmental Biology of the National Science Foundation Grant DEB 77/14408 to the Biosystems Research Division, Department of Industrial Engineering and by the Texas Agricultural Experiment Station, Texas A&M University.






HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
ASPB Publications PLANT PHYSIOLOGY® THE PLANT CELL
Copyright © 1980 by the American Society of Plant Biologists