Rhizosphere microorganisms are abundant in plants, and some beneficial ones can improve the micro-ecoenvironment of rhizosphere, promote plant growth, inhibit or reduce the diseases of plant, decrease the utilization of fertilizers and pesticides, and relieve the environmental pollution. Meanwhile, rhizosphere microorganisms can exudes many kinds of secondary metabolisms that are important sources and ways to synthesis new chemicals. Mulberry as an important cash crop, the study of rhizosphere microorganism...