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Science 1 August 1969:
Vol. 165. no. 3892, pp. 500 - 503
DOI: 10.1126/science.165.3892.500
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Articles

Circadian Rhythm of Cell Division in Euglena: Effects of a Random Illumination Regimen

Leland N. Edmunds Jr. 1 and Roy R. Funch 1

1 Department of Biological Sciences, State University of New York, Stony Brook 11790

A persisting, "free-running," circadian rhythm of cell division in autotrophically grown Euglena gracilis is obtained upon placing either an exponentially increasing population or a culture that has been synchronized by a 10:14 light-dark cycle in a random illumination regimen that affords a total of 8 hours of light each 24 hours. These results are interpreted as implicating an endogenous biological clock which "gates" the specific event of cell division in the cell developmental cycle.


THIS ARTICLE HAS BEEN CITED BY OTHER ARTICLES:
The Circadian Clock Component BMAL1 Is a Critical Regulator of p21WAF1/CIP1 Expression and Hepatocyte Proliferation.
A. Grechez-Cassiau, B. Rayet, F. Guillaumond, M. Teboul, and F. Delaunay (2008)
J. Biol. Chem. 283, 4535-4542
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Circadian G2 Arrest as Related to Circadian Gating of Cell Population Growth in Euglena.
A. Bolige, S.-y. Hagiwara, Y. Zhang, and K. Goto (2005)
Plant Cell Physiol. 46, 931-936
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Acquisition of Circadian Bioluminescence Data in Gonyaulax and an Effect of the Measurement Procedure on the Period of the Rhythm.
H. Broda, V. D. Gooch, W. Taylor, N. Aiuto, and J. W. Hastings (1986)
J Biol Rhythms 1, 251-263
   Abstract »    PDF »
Clocked cell cycle clocks.
L. Edmunds Jr and K. Adams (1981)
Science 211, 1002-1013
   Abstract »    PDF »
Persisting Circadian Rhythm of Cell Division in a Photosynthetic Mutant of Euglena.
R. M. Jarrett and L. N. Edmunds Jr. (1970)
Science 167, 1730-1733
   Abstract »    PDF »


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