大连地区海泥样品中分离的两株小单胞菌的研究

从大连不同地区的海泥样品中分离了2株具有广谱抗菌活性的小单胞菌。16S rDNA序列分析结果显示,2株小单胞菌均与Micromonospora aurantiaca DSM43813具有99%的相似性,但是这2株小单胞菌的培养特征和生理生化特性具有明显的差别。2株小单胞菌均在20℃下生长良好,而且能耐受6%的NaCl。这是有抗菌活性的Micromonospora aurantiaca菌株首次在我国大连地区海泥样品中得到分离。2株小单胞菌具有较好的抗菌活性,尤其是对白色假丝酵母和铜绿假单胞杆菌的活性,显示了进一步开发与应用的价值。

Two Micromonospora Strains from Dalian Area Marine Mud Sample

Two Micromonospora strains with broad antimicrobial activities spectrum were isolated from marine mud samples collected from different Dalian sea areas.The results of 16S rDNA sequence analysis showed that these two Micromonospora strains have 99% similarity with Micromonospora aurantiaca DSM43813,however,they distinguished clearly in culture characters and physio-biochemical features.They grew well at 20,and could resist as high as 6% of NaCl.It was for the first report on the Micromonospora aurantiaca strains possessing antibiotic activity isolated from Dalian in China,especially the activities against Candida albicans,and Pseudomonas aeruginosa,indicating that they have the potential values for further study and development.