Ancient proteins shown to control plant growth

A UCLA-led international team of life scientists reports the discovery of mechanisms regulating plant growth that could provide new insights into how the mammalian biological clock affects human health. The research will ...

Blast of thin air can reset circadian clocks

We might not think of our circadian clock until we are jetlagged, but scientists continue to puzzle over what drives our biological timepiece. Now, a study published October 20 in Cell Metabolism has found that variations ...

An appetite suppressant with side effects

Neurogeneticists from the University of Würzburg have discovered a peptide in Drosophila that has a strong impact on the fly's feeding and sleeping habits. At the same time, it is associated with the insects' circadian clock.

Melatonin, biological clock keep singing fish on time

In the 1980s, people living on houseboats in the San Francisco Bay were puzzled by a droning hum of unknown origin that started abruptly in the late evening and stopped suddenly in the morning.

Light causes drosophila to take longer midday nap

Fruit flies' activity peaks in the morning and late afternoon. The insects extend their midday siesta on long summer days. Researchers from the University of Würzburg have now discovered what triggers this behaviour. A miniature ...

Sunflowers move by the clock

It's summertime, and the fields of Yolo County are filled with ranks of sunflowers, dutifully watching the rising sun. At the nearby University of California, Davis, plant biologists have now discovered how sunflowers use ...

Newly synthesised molecules turn back biological clock

Scientists in Japan have designed new molecules that modify the circadian rhythm, opening the way to the possibility of managing jet lag and improving treatments for sleep disorders.

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