I knew the job was dangerous when I took it ...
- Jul 19, 2004
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- Out of Bounds
FULL STORY: https://www.sciencealert.com/scient...our-body-clock-in-first-of-its-kind-discoveryIn First-of-Its-Kind Discovery, Scientists Confirm Bacteria Have a 24-Hour Body Clock
In a first-of-its-kind discovery, scientists have found that a species of non-photosynthetic bacteria are regulated by the same circadian rhythms that hold sway over so many other life-forms.
In humans, our circadian rhythms act as a kind of biological clock in our cells, controlling virtually all the processes in our bodies, influencing when we sleep and rise, plus the functioning of our metabolism, and cognitive processes.
This internal time-keeping, which revolves around a 24-hour cycle, is driven by our circadian clock, and the same core phenomenon has been observed in many other kinds of organisms as well, including animals, plants, and fungi.
For a long time, however, it's been unclear whether bacteria at large are also subject to the dictates of circadian rhythms.
The phenomenon has been demonstrated in photosynthetic bacteria, which use light to make chemical energy, but as for whether other kinds of bacteria also possess circadian clocks has long remained a mystery – until now.
"We've found for the first time that non-photosynthetic bacteria can tell the time," explains chronobiologist Martha Merrow from the Ludwig Maximilian University of Munich.
"They adapt their molecular workings to the time of day by reading the cycles in the light or in the temperature environment." ...