【摘要】 由东北大田采集的土样中筛选到菌株D 97,该菌株胞内酶可以利用淀粉或麦芽寡糖合成海藻糖。通过生理、形态、结构特征分析及 1 6SrDNA基因全序列与参比菌株的序列比较 ,菌株D 97与食尼古丁节杆菌的 1 6SrDNA序列同源性高达 97 98% ,故将该菌株命名为食尼古丁节杆菌D 97(ArthrobacternicotinovorusD 97)。我们还将D 97菌株与日本林原公司的海藻糖生产菌———节杆菌Q36的有关生理生化特征进行了比较。更多还原

【Abstract】 A bacterium D 97 whose enducellular enzymes can produce trehalose from starch or maltooligosaccharides was isolated from Datian in Northeast of China The morphological, Cultural and Physiological Characteristics of trehalose prodicing bacterium D 97 were described in this paper There are galactose and lysine in its cell wall but no diaminopimelic acid (DAP) arabinose The content of G+C mol% is 61 3 The full lenth of 16s rDNA (770bp) has been tested and compared with the type strains of all known Arthrobacter sp in Genebank, the results showed the similarity values of 16s rDNA sequence between bacterium D 97 and Arthrobacter nicotinovorus were 97 98%, therefore bacterium D 97 was nameed Arthrobacter nicotinovorus D 97 In this paper we also carried out some comparisons of Physiological Characteristics between Arthrobacter nicotinovorus D 97 and Arthrobacter sp Q36更多还原