两株溶藻细菌对棕囊藻溶藻作用的原子力显微镜研究  

Study on the two of algae-lysing bacteria which control red-tide of Phaeocystis globosa by AFM

作　　者：杨晓新[1] 尹平河[1] 

机构地区：[1]暨南大学水生生物研究所,广东广州510632

出　　处：《暨南大学学报（自然科学与医学版）》2008年第1期90-94,共5页Journal of Jinan University(Natural Science & Medicine Edition)

基　　金：广东省自然科学基金重点项目(04105835);广东省教育厅学科建设重点项目

摘　　要：细菌在赤潮生消过程中起着重要的作用.课题组从珠海赤潮发生海域采集的11株细菌中分离、筛选出2株具有显著溶藻效果的细菌.用原子力显微镜研究结果表明,2株细菌均属杆菌,形态明显不同,均可作用于球形棕囊藻,导致藻细胞破裂和胞内物质溶出而死亡,达到治理棕囊藻赤潮的目的.Algae-lysing bacteria is a kind of sea bacteria accompanied with red tide, which can inhibit or kill algae cell. Eleven bacteria were separated from red tide zone in Pearl Sea, from which 2 with remarkable algae-lysing effect were isolated. Their characters and inhibition on growth of Phaeocystis globosa were studied by AFM. The results showed that both of them were bacillus but with different configuration. Both could inhibit P. globosa by breaking algae cell surface layer and making the inclusion of algae cell released until P. globosa was lysed and died finally, which provided both theory and practice method for contolling the red tide of P. globosa.

关 键 词：溶藻细菌 溶藻作用 棕囊藻 原子力显微镜 

分 类 号：Q949.2[生物学—植物学] X55[环境科学与工程—环境工程]