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During drought, the signalling molecule GABA is produced and inhibits the opening of leaf pores (left). If the enzyme GAD2, which converts glutamate to GABA, is genetically switched off, the pores remain open even during drought - the plants lose more water (centre). If the gene for GAD2 is reintroduced into the closing cells, the defect is reversed. The experiment shows that the sphincter cells autonomously perceive stress and react to it with GABA production.

During drought, plants use a signalling molecule known from animals to limit their water loss. The molecule provides them with a kind of memory of how dry the day was.

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Violet light triggers a signalling chain in the light sensor protein switch-Cyclop, blue or green light stops the chain. At the end, the production of the signalling molecule cGMP is regulated by the enzyme guanylyl cyclase (GC).

New tool for cell biology: Würzburg researchers have developed a light sensor with an enzyme function that can be switched on and off with different light colours.

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Model of the SMN complex, stained yeast cells can be seen in the background.

Capturing the structure of large molecular complexes with variable shape is an extremely difficult task. Scientists from Würzburg and Montpellier now have been able to do it – thanks to a new approach regarding an important protein machine.

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Not an injection, but a capsule that can simply be swallowed: This is what vaccination against Covid-19 could look like in the future.

Scientists at the University of Würzburg together with a pharmaceutical company are working on a novel approach to oral vaccination against the coronavirus.

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Measurements have shown how the hummingbird hawkmoth uses optic flow for flight control and orientation.

How do hawkmoths use visual patterns in different parts of their visual field? While researching this question, a team from the Würzburg Biocentre experienced a surprise.

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