大白鼠舌表硝酸盐还原菌研究  

Nitrate Reducing Bacteria on Rat Tongue

作　　者：张加春[1] 李红[1] 何斌[1] 王权飞 番安静 姚政[1] 

机构地区：[1]云南师范大学生命科学系,昆明650092

出　　处：《云南大学学报（自然科学版）》1998年第S4期516-518,共3页Journal of Yunnan University(Natural Sciences Edition)

基　　金：国家自然科学基金

摘　　要：对６只大白鼠舌表细菌计数，结果表明，细菌总数从第一段舌到第五段舌递增约２个数量级，绝大部分细菌栖息于舌表乳头的“深沟”中；共分离纯化 １３０４个单菌落，其中硝酸盐还原阳性菌 ３０８株，阳性菌检出率从晋尖向舌根递增，即硝酸盐还原菌主要分布于舌表后半部分；对硝酸盐还原细菌进行鉴定，优势菌为肠杆菌科（Ｅｎｔｅｒｏｂａｃｔｅｒｉａｃｅａｅ），葡萄球菌属（Ｓｔａｐｈｙｌｏｃｏｃｃｕｓ），莫拉氏菌属（Ｍｏｒａｘｅｌｌａ）和奈瑟氏球菌属（Ｎｅｉｓｓｅｒｉａ）．Tongues from six different rats were used in this study, each tongue was cut into five equal length sections. The enumeration of total bacteria in rat tongues show that, there was a 2. 0 log10 unit increase in the density of bacteria from the first section to the fifth section, most of the baeteria inhabit in the deep defts in rat tongues' surface. From a total of 1 304 strains randomly isolated from different isolation media and tongue sections, 308 isolates produced nitrite, the density of nitrite producing bacteria increase between the anterior and posterior end of the tongue. The dominent nitrite producing bacteria were Enterobacteriaceae, Staphylococcus, Moraxella and Neisseria.

关 键 词：硝酸盐还原菌 大白鼠 鉴定 

分 类 号：Q939[生物学—微生物学]