一株黄原胶降解菌的筛选与鉴定  

A xanthan gum degradation bacterium identification

作　　者：刘亚云[1] 李洁[1] 杨伍 苏柯[1] 杨艳燕[1] 

机构地区：[1]湖北大学生命科学学院,湖北武汉430062

出　　处：《湖北大学学报（自然科学版）》2013年第4期465-468,共4页Journal of Hubei University：Natural Science

基　　金：2012年地方高校国家级大学生创新创业训练计划项目;工业生物技术湖北省重点实验室资助

摘　　要：从土壤中分离出一株能够降解黄原胶的菌株,对这株黄原胶降解菌进行形态特征、生理生化特征及16SrDNA的序列分析,并利用系统发育分析等研究结果,确认该菌株属于芽胞杆菌科的芽胞杆菌属,为进一步开展菌株改良、定点诱变等提高菌株降解黄原胶能力的工作奠定基础.A strains of bacterium that can degrade the xanthan gum has been isolated from soil. We analysed this xanthan-degrading bacterium in terms of the morphological characteristics, physiological and biochemical characteristics and 16S rDNA sequence. Combined with the strains of morphological characteristics, physiological and biochemical characteristics and system development analysis results, we confirmed the strains belonged to the genus Bacillus of Bacillaceae. This result layed a foundation to improve the ability of degradating strains xanthan gum for further development and the improvement of the strains of site-directed mutagenesis.

关 键 词：黄原胶降解菌 形态特征 生理生化特征 16S RRNA基因序列分析 

分 类 号：Q936[生物学—微生物学]