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


     

Plant Physiology 47:68-70 (1971)
© 1971 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 (9)
Right arrow Citing Articles via Google Scholar
Google Scholar
Right arrow Articles by Alford, D. K.
Right arrow Articles by Tibbitts, T. W.
Right arrow Search for Related Content
PubMed
Right arrow PubMed Citation
Right arrow Articles by Alford, D. K.
Right arrow Articles by Tibbitts, T. W.
Agricola
Right arrow Articles by Alford, D. K.
Right arrow Articles by Tibbitts, T. W.
Articles

Endogenous Short Period Rhythms in the Movements of Unifoliate Leaves of Phaseolus angularis Wight 1

D. K. Alford2 and T. W. Tibbitts

a Department of Horticulture, University of Wisconsin, Madison, Wisconsin 53706

Rhythmic rotational movements with the midvein as the axis have been observed in the unifoliate leaves of Phaseolus angularis Wight grown under controlled environmental conditions with continuous light. The mean period of this movement for all leaves was 53.2 ± 4.3 minutes and remained constant as the leaf matured, except after removal of the apical meristem and emerging trifoliate leaf when the period increased by about 5 minutes. The amplitude of the movement also remained constant as the leaf matured. These rotational movements were pronounced when the leaf blade was in a horizontal position and were not evident during the downward or "sleep" movements of the leaf. This movement began 3 days after leaf unfolding and continued for at least 6 days. It was most pronounced at the time of inflection of the leaf length growth curve after the logarithmic phase of growth.

2 Present address: Department of Biology, Metropolitan State College, Denver, Colorado 80204.

1 Part of Ph.D. thesis of D. K. Alford. This research was supported in part by a National Aeronautics and Space Administration Multidisciplinary Research Grant and by Grant NGR 50-002-109. Published with permission of the Director, Research Program Division, College of Agricultural and Life Sciences, Madison, Wisconsin.






HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
ASPB Publications PLANT PHYSIOLOGY® THE PLANT CELL
Copyright © 1971 by the American Society of Plant Biologists