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Entries with tag circadian rhythm .

Genetic switch regulates a plant’s internal clock based on temperature

Scientists have discovered a key molecular cog in a plant’s biological clock – one that modulates the speed of circadian (daily) rhythms based on temperature. Transcription factors, or genetic switches, drive gene expression in plants based on external stresses – such as light, rain, soil quality, or even animals grazing on them. A team of researchers at USC has isolated one, called...
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Researchers show how plants tell the time

Plants use sugars to tell the time of day, according to research published in Nature this month. Plants, like animals, have a 24 hour 'body-clock' known as the circadian rhythm. This biological timer gives plants an innate ability to measure time, even when there is no light – they don't simply respond to sunrise, for example, they know it is coming and adjust their...
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