Relationship between icaA,icaD gene expression and slime formation in Staphylococcus epidermidis表皮葡萄球菌icaA和icaD基因表达及其与黏质物形成的关系
The Ecologicad Effect of Soil Microorganisms of successinal resumption on Degeneratiue grassland退化草场恢复演替与合理利用的土壤微生物生态效应