一株产絮凝剂的曲霉菌株的筛选  

SCREENING OF A FLOCCULANT-PRODUCING Aspergillus sp.GXF9912

作　　者：武波[1] 韦东[1] 唐咸来[2] 柏学亮[1] 马庆生[1] 唐记良[1] 

机构地区：[1]广西大学农业部农业分子遗传重点开放实验室,广西南宁530005 [2]中国科学院沈阳应用生态研究所,辽宁沈阳110015

出　　处：《微生物学杂志》2001年第2期3-5,38,共4页Journal of Microbiology

摘　　要：从排污沟的废水污泥中筛选到 1株产絮凝剂的霉菌GXF9912。该菌株的最佳产絮凝剂时间为培养后72h ;培养基的初始 pH为 6 .0～ 6 .5时 ,产生的絮凝剂活性较高 ;Ca2 +对絮凝作用有促进作用。通过GXF9912菌株的 5 .8SrRNA基因两侧的内转录间隔区 (internaltranscribedspacers,ITS)进行序列分析表明该菌株为曲霉。A flocculant-producing mold sp. GXF9912 was isolated from activated sludge. The optimum culturing period and pH for the production of flocculant were 72h after inoculation and 6.0～6.5 respectively. Ca+{2+} has a promotion role in flocculation. Based on internal transcribed spacers (ITS) sequence analysis, the GXF9912 was identified as a species of Aspergillus.

关 键 词：絮凝剂 内转录间隔区 曲霉 筛选 

分 类 号：Q93－331[生物学—微生物学] TQ047[化学工程]