4Brune A, Friedrich M. Micro-ecology of the termite gut: structure and function on a microscale[J]. Cument Opinion in Microbiology 2000, 3(3): 263-269.
5Isberg R R, Barnes P. Dancing with the host: flow-dependent bac- terial adhesion[J]. Cell, 2002, 110( 1 ): 1-4.
6Ley R E, Peterson D A,. Gordon J I. Ecological and evolutionary forces shaping microbial diversity in the human intestine[J]. Cell, 2006, 124(4): 837-848.
7Rodriguez S, Santamaria R I, Fernand-Abalos J M, et al. Identifi- cation of the sequences involved in the glucose-repressed tran- scription of the Streptomyces halstedii JM8 xysA promoter[J]. Gene, 2005, 351: 1-9.
8Sonnenburg J L, Xu J, Lei D D, et al. Glycan foraging in vivo by an intestine-adapted bacterial symbiont[J]. Science, 2005, 307 (5 717): 1 955-1 959.
9Pryde S E, Duncan S H, Hold G L, et al. The microbiology of bu- tyrate formation in the human colon[J]. FEMS Microbiol Lett,2002, 217(2): 133-139.
10James M C. That healthy gut feeling[J]. Nature, 2011, 7 378(488): 88-97.
5Guan S, Lu J, Shen X, et al. Florfenicol impairs the immune respon- ses to vaccination against foot-and-mouth disease in mice[J]. Immu- nopharmacology and Immunotoxicology,2011,33(4) :609-613.
6Guo L, Liu J, Hu Y, et al. Astragalus polysaccharide and sulfated epimedium polysaccharide synergistically resist the immunosup- pression[J]. Carbohydrate Polymers, 2012,90(2) : 1055- 1060.
7Li S P, Zhao X J, Wang J Y. Synergy of Astragalus polysaccha- rides and probiotics (Lactobacillus and Bacillus cereus) on im- munity and intestinal microbiota in chicks[J]. Poultry Science, 2009,88(3) :519-525.
8Liu Y, Zhang S, Zhang F, et al. Adjuvant activity of Chinese herb- al polysaccharides in inactivated veterinary rabies vaccines[J]. In- ternational Journal of Biological Macromolecules, 2012, 50 ( 3 ) : 598-602.
9Nejatian M, Hatami M, Mohammadifar M A. Effect of gum traga- canth exuded by three Iranian Astragalus on mixed milk protein system during acid gelation[J]. International Journal of Biological Macromolecules, 2013,53 : 168- 176.
