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Published on Jun 20, 2013
Does your salad know what time it is? In a June 2013 study, biologists from Rice University and the University of California at Davis showed there could be potential health benefits to maintaining the circadian rhythms -- the internal clocks -- of vegetables and fruits post-harvest. In a study in Current Biology, the researchers showed they could use light to manipulate the circadian rhythms of cabbage, lettuce, spinach, zucchini, carrots, sweet potatoes and blueberries. In this time-lapse video, 20 caterpillars were placed on two lettuce leaves for five days. The leaf on the left was on the same day-night cycle with the caterpillars. The circadian clock of the leaf on the right was opposite from that of the caterpillars.