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Vive la cycles

CHE protein keeps plants’ circadian clocks turning

Plants do shift work too. Researchers have now discovered an important worker on the second shift.

Jose Pruneda-Paz, Steve A. Kay and their colleagues at the University of California, San Diego report in the March 13 Science that they have found a missing link in plants’ circadian clocks. A regulatory protein called CHE connects a morning cycle to an evening cycle.

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