【摘要】 从武汉市东湖附近一个发生水华现象的池塘中分离出一株溶藻细菌,编号为M14,在液体培养基中对鱼腥藻(AnabaenaPCC7120)、鱼腥藻(Anabaenasp.595)、鲍氏织线藻(PlectonemaboryanumIU594)、坑形席藻(PhormidiumfoveolarumIU427)、伪枝藻(ScytonemahofmanniIU1581)、念珠藻(Nostocsp.96)等丝状蓝藻具有强烈的溶解作用;经过多项形态、生理、生化特性测试,初步鉴定为一株欧文氏菌(Erwinia.sp.).细菌培养物的滤液对宿主蓝藻仍具有强烈的溶解作用,这表明菌株M14是通过分泌细胞外物质的方式进行溶藻.更多还原

【Abstract】 A bacterial strain M14 was isolated from a pond in Wuhan in the decline of a cyanobacterial bloom. According to the studies on the major bacteriological characteristics, it was identified as a Erwinia.sp, which showed potent algicidal activity against filamentous cyanobacteria: Anabaena PCC7120,Anabaena sp 595,Plectonema boryanum IU594,Phormidium foveolarum IU427,　Scytonema hofmanni IU1581 and Nostoc sp 96 when we cocultivated them respectively. Preliminary study revealed the strain could secrete some extracellular materials which were responsible for the algicidal activity.更多还原