[Ecological studies on genetically engineered microorganism in environment].

This paper discussed the main problems which should be considered on the environmental release of genetically engineered microorganism (GEM), including GEM construction, gene transfer, fitness, diffusion, translocation, potential eco-influence and so on. Moreover, aiming at the special ecological characteristic and eco-influence of GEM, this paper brought forward the policy of "respective analysis on different problems", and postulated the corresponding projects of GEM ecological research to apply GEM safely and effectively in nature.