Independent photoreceptive circadian clocks throughout Drosophila - PubMed (original) (raw)
Independent photoreceptive circadian clocks throughout Drosophila
J D Plautz et al. Science. 1997.
Abstract
Transgenic Drosophila that expressed either luciferase or green fluorescent protein driven from the promoter of the clock gene period were used to monitor the circadian clock in explanted head, thorax, and abdominal tissues. The tissues (including sensory bristles in the leg and wing) showed rhythmic bioluminescence, and the rhythms could be reset by light. The photoreceptive properties of the explanted tissues indicate that unidentified photoreceptors are likely to contribute to photic signal transduction to the clock. These results show that autonomous circadian oscillators are present throughout the body, and they suggest that individual cells in Drosophila are capable of supporting their own independent clocks.
Comment in
- Multiple clocks keep time in fruit fly tissues.
Pennisi E. Pennisi E. Science. 1997 Nov 28;278(5343):1560-1. doi: 10.1126/science.278.5343.1560. Science. 1997. PMID: 9411775 No abstract available. - Heisenberg meets photobiology?
Oren DA. Oren DA. Science. 1998 Feb 13;279(5353):969. doi: 10.1126/science.279.5353.963h. Science. 1998. PMID: 9490481 No abstract available.
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