Nano-switches in the cell

Mitochondria, best known for their role as cellular power plants, perform numerous vital tasks in the cell. During cell respiration, reactive oxygen species can be formed in mitochondria. If these are present in excess, their ...

How single-cell archaea determine what direction to swim

Dr. Tessa Quax has identified the structure of a central protein used by archaea to determine the direction to swim. Archaea are single-cell life forms without a nucleus. She also studied which molecular mechanisms are involved ...

How plants see light

Plants react sensitively to changes in their surroundings and possess the ability to adapt to them. They use the photoreceptor protein phytochrome B to see light and then regulate processes such as seed germination, seedling ...

Ions in the spotlight

The results of a research group from the Institute of Physics at the University of Freiburg has been given a special place in Nature Photonics. An accompanying "News & Views" article in the print version of the science journal ...

On the path to vitamin A in rice

The lack of vitamin A in food is a major cause of health problems worldwide and can lead to blindness and even death. This is especially a problem in threshold or third-world countries, where children are likely to suffer ...

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