In terms of cmis , all mucosa such as gut , nasal and rectal routs can be used to inoculate vaccine . intranasal immunization does not expose antigens to low ph and a broad range of degradative enzymes 根据共同粘膜免疫系统( commonmucosalimmunitysystem ， cmis )理论，在一个粘膜部位接种可以在其它远距离粘膜部位产生免疫反应，胃、鼻腔、直肠均可作为粘膜接种的途径。
3.
The nitrobenzene degradative plasmid in pseudomonas xn - 1 is discussed in this paper , based on the characterization of nitrobenzene degradation by strain pseudomonas xn - 1 , which attempts to do some prepared work for the research in molecule level of nitrobenzene degradation by this strain 本论文在对菌株pseudomonasxn - 1降解硝基苯的特性及降解条件优化的基础上，研究了菌株细胞内所含有的降解性质粒，希望能为今后对这株菌在分子水平上降解硝基苯的特性研究打下一些基础。
