This thorough study is an assessment of the risks involved with the deliberate release of microorganisms modified by means of genetic engineering. Major emphasis is on European cooperative research projects such as the ones on Rhizobium and Baculovirus. Further contributions cover aspects of soil microbiology, genetic transformation in soil, molecular and plasmid genetics, horizontal spread of plasmids, as well as administrative, regulative and legal aspects in relation to possible releases.weiterlesen