Gx Biosystems A/s

Leo Eberl

Michael Givskov

Soren Molin

Asim K Bej

Claus Sternberg Kristensen

The survival of cells is limited by introducing into the cells a regulatably expressible gene whose expression results in the formation of a cytoplasmatically active hydrolytic enzyme. Populations of cells containing, in addition to such a regulatably expressible gene, a DNA coding for an immunologically active, pesticidally active or environmental pollutant-degrading gene product, may be useful in immunologically active compositions, pesticidally active compositions and environmental pollutant-degrading compositions, respectively.

Method of limiting the survival of genetically engineered microorganisms

The survival of cells is limited by introducing into the cells a regulatably expressible gene whose expression results in the formation of a cytoplasmatically active hydrolytic enzyme. Populations of cells containing, in addition to such a regulatably expressible gene, a DNA coding for a pesticidally active or environmental pollutant-degrading gene product, may be useful in pesticidally active compositions and environmental pollutant-degrading compositions, respectively.

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Graz, Austria

Leo Eberl