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In the vacuum immersion bath, the air is drawn out of the spaces between the plant cells, allowing the immersion bath solution and with it the Agrobacterium tumefaciens bacteria to penetrate and come into particularly close contact with the plant cells (above). While the plants recover in the greenhouse, the bacteria transport the active substance DNA that Bayer's scientists previously implanted in the bacteria (not shown) into the plant's nucleus. Using this method, the plant cells can very rapidly produce active proteins (right) which can then be isolated from the plant. After a while, the plant loses the active substance DNA again.
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Gene immersion bath: Dr. Sylvestre Marillonnet places tobacco plants upside down in a vacuum tank filled with a bacterial solution. The bacteria transport genes into the plants which are then capable of producing medicinal active substances.
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Bayer Innovation GmbH: Member of staff is working in the clean room on the production of wound dressing on the basis of silicon gel fibre.
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Plants are not just suppliers of food but also serve as the source of valuable raw materials for industry. Scientists at Bayer Bioscience GmbH specialize in optimizing the properties of plants such as potatoes by changing their molecular biology.
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Come rain or shine: Ralf Langer places coating speciments in an accelerated weathering device.

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