Regulation of Testis Function in Golden Hamsters: A Circadian Clock Measures Photoperiodic Time
- 17 November 1972
- journal article
- other
- Published by American Association for the Advancement of Science (AAAS) in Science
- Vol. 178 (4062), 771-773
- https://doi.org/10.1126/science.178.4062.771
Abstract
The photoperiodic testicular response of adult golden hamsters was examined by the use of a 6-hour light period coupled with dark periods of 18, 30, 42, and 54 hours. Cycle lengths of 24 and 48 hours resulted in testicular regression, whereas testicular weight was maintained by cycle lengths of 36 and 60 hours. Our data demonstrate a circadian rhythm of sensitivity to the effects of light on the photoperiodic testicular response of the hamster. The position of light relative to the circadian system (as measured by the locomotor rhythm) is critical in the response.Keywords
This publication has 24 references indexed in Scilit:
- Rhythmic Leaf Movements in Biloxi Soybean and Their Relation to FloweringPlant Physiology, 1971
- Reproductive Effects of the Mammalian PinealAmerican Zoologist, 1970
- COMMON FEATURES OF PHOTOPERIODISM IN PLANTS AND ANIMALS*Photochemistry and Photobiology, 1969
- Pineal Gland: Influence on Gonads of Male HamstersScience, 1965
- Circadian Rhythms and Plant PhotoperiodismThe American Naturalist, 1964
- The Entrainment of Circadian Oscillations by Light and Their Role as Photoperiodic ClocksThe American Naturalist, 1964
- Endogenous Circadian Rhythms and the Response of Lemna perpusilla to Skeleton PhotoperiodsThe American Naturalist, 1964
- Function of a light response rhythm in hamstersJournal of Cellular and Comparative Physiology, 1964
- Diurnal Rhythm and Photoperiodism in Testicular Recrudescence of the House FinchScience, 1963
- Comparative Physiology: PhotoperiodicityAnnual Review of Physiology, 1961