Note to users. If you're seeing this message, it means that your browser cannot find this page's style/presentation instructions -- or possibly that you are using a browser that does not support current Web standards. Find out more about why this message is appearing, and what you can do to make your experience of our site the best it can be.

Site Tools

  • AAAS
  • Subscribe
  • Feedback

Site Search

Search Advanced

Science 10 November 1972:
Vol. 178. no. 4061, pp. 634 - 636
DOI: 10.1126/science.178.4061.634
Prev | Table of Contents | Next

Articles

Gas Exchange in Dry Seeds: Circadian Rhythmicity in the Absence of DNA Replication, Transcription, and Translation

Truman R. Bryant 1

1 Department of Botany, University of Georgia, Athens 30601

A 24-hour rhythm of gas exchange has been detected in dry onion seeds. The rhythm persists in constant conditions, and its period appears to be independent of temperature. Since DNA replication, transcription, and perhaps translation do not occur in this quiescent state, it is concluded that the basic oscillation that defines circadian rhythmicity does not derive directly from these processes.


THIS ARTICLE HAS BEEN CITED BY OTHER ARTICLES:
Imbibition, but Not Release from Stratification, Sets the Circadian Clock in Arabidopsis Seedlings.
H. H. Zhong, J. E. Painter, P. A. Salomé, M. Straume, and C. R. McClung (1998)
PLANT CELL 10, 2005-2018
   Abstract »    Full Text »


To Advertise     Find Products

Science. ISSN 0036-8075 (print), 1095-9203 (online)