LACTIC ACID BACTERIAL SUPPRESSOR MUTANTS AND THEIR USE AS SELECTIVE MARKERS AND AS MEANS OF CONTAINMENT IN LACTIC ACID BACTERIA

摘要

Mutants of lactic acid bacteria or plasmids capable of replicating in lactic acid bacteria, comprising nonsense mutation suppressor-encoding genes, the use of such suppressor genes for confining a replicon to a specific lactic acid bacterium or to a lactic acid bacterium growing in a particular environment and for controlling the number of lactic acid bacterial cells in a particular environment.