In between red light and blue light: New functionality of molecular light switches

Diatoms play an important role in water quality and in the global climate. They generate about one fourth of the oxygen in the Earth’s atmosphere and perform around one-quarter of the global carbon dioxide assimilation, i.e. they convert carbon dioxide into organic substances. Their light receptors are a crucial factor in this process. Researchers have now discovered that blue and red light sensing photoreceptors control the carbon flow in these algae.

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