芦竹和睡莲对铜绿微囊藻的生长抑制效应  

Inhibitory Effect of Arundo donax and Nymphaea tetragona on Microcystis aeruginosa

作　　者：陈建中[1,2] 李利芳[1] 张海洋[1] 刘志礼[2] 

机构地区：[1]湖州师范学院生命科学学院,浙江湖州313000 [2]南京大学生命科学学院,江苏南京210093

出　　处：《环境科学与技术》2011年第7期35-37,82,共4页Environmental Science & Technology

基　　金：浙江省新苗人才计划项目(2007R40G2200014);浙江省重大科技专项资助(2008C12009)

摘　　要：在实验室条件下,以南太湖水华蓝藻铜绿微囊藻为材料,研究了挺水植物芦竹和水生浮叶植物睡莲的组织和提取液对铜绿微囊藻生长的抑制效应。结果表明,芦竹叶、芦竹杆、等质量的芦竹叶和杆以及睡莲叶、睡莲茎、等质量的睡莲叶和茎及其提取液对铜绿微囊藻均有不同程度的抑制作用。0.5%芦竹组织提取液的抑藻效果优于0.01%、0.05%和0.1%的芦竹组织提取液,芦竹叶、芦竹杆以及睡莲叶和茎组织对铜绿微囊藻生长的抑制作用大于其同浓度的提取液。研究同时发现,睡莲比芦竹具有更高的抑藻效应,不同的芦竹和睡莲器官组织具有不同的抑藻效果,芦竹杆的抑制效果优于芦竹叶,而睡莲叶优于睡莲茎。高温灭菌后的睡莲和芦竹组织仍具有明显的抑藻作用,说明芦竹和睡莲分泌的抑藻化感物质具有较高的耐热性。Lab-scale experiment was conducted to study the inhibitory effects of tissues and tissue extracts of Arundo donax and Nymphaea tetragona on Microcystis aeruginosa from south Lake Taihu.Inhibitory effects on growth of the algae were showed in different ways.According to the experimental results,leaves and haulm of A.donax as well as leaves and stems of N.tetragona exerted stronger inhibitory effects than their extracts at the similar concentrations.In addition,A.donax showed better inhibitory capacity than A.donax,and different tissues of A.donax and N.tetragona exerted different inhibitive effects on Microcystis aeruginosa.Inhibitive effect of haulm of A.donax was stronger than that of the leaves,while leaves of N. tetragona exerted stronger inhibition than the stems.The fact that autoclaved tissues and extracts of A.donax and N.tetragona showed remarkable algae inhibiting effects indicated that the allelochemicals excreted by both plants were thermally stable.

关 键 词：芦竹 睡莲 铜绿微囊藻 抑制效应 

分 类 号：X172[环境科学与工程—环境科学]