利用特异性引物确定肠膜明串珠菌菌株BD1710的亚种归属  

Subspecies Identification of Leuconostoc mesenteroides BD1710 Using Specific Primers

作　　者：高彩霞[1] 鄢明辉 吴正钧[1] 

机构地区：[1]乳业生物技术国家重点实验室光明乳业股份有限公司,上海200436

出　　处：《乳业科学与技术》2016年第1期5-7,共3页JOURNAL OF DAIRY SCIENCE AND TECHNOLOGY

基　　金："十二五"国家科技支撑计划项目(2013BAD18B01);上海市启明星人才计划项目(14QB1400200)

摘　　要：肠膜明串珠菌种共有4个亚种,其中肠膜明串珠菌肠膜亚种被我国卫生部与美国食品药品监督管理局列为可食用菌种之一。而16S r RNA基因,无法确定肠膜明串珠菌菌株的亚种地位。实验利用16S^23S核糖体间隔序列与3种种特异性基因,并根据肠膜明串珠菌已有的引物进行分析,确定肠膜明串珠菌BD1710归属肠膜明串珠菌肠膜亚种。Leuconostoc mesenteroides consists of four subspecies, L. mesenteroides subsp. mesenteroides, L. mesenteroides subsp. dextranicum, L. mesenteroides subsp. suionicum and L. mesenteroides subsp. cremoris. Among these subspecies, only L. mesenteroides subsp. mesenteroide is currently listed for use as a food additive by China’ Ministry of Health and the FDA. The subspecies of L. mesenteroides subsp. mesenteroide cannot be identifi ed simply by 16 S rRNA gene sequencing. Therefore, the present study investigated subspecies identification of L. mesenteroides BD1710 using the established primers based on 16S–23S rRNA gene intergenic spacer region sequence similarity and three specific housekeeping genes. The results confi rmed the strain to belong to L. mesenteroides subsp. mesenteroides.

关 键 词：糖基转移酶 肠膜明串珠菌 基因结构 功能基因 

分 类 号：TS201.3[轻工技术与工程—食品科学]