几种高等水生植物的克藻效应研究  

Allelopathic effects of several higher aquatic plants on algae

作　　者：张庭廷[1] 陈传平[1] 何梅[1] 吴安平[1] 聂刘旺[1] 

机构地区：[1]安徽师范大学生命科学学院生物环境与生态安全安徽省高校重点实验室,芜湖241000

出　　处：《生物学杂志》2007年第4期32-36,共5页Journal of Biology

基　　金：安徽省教育厅自然科学基金项目(2006KJ219B);"生物环境与生态安全"安徽省高校重点实验室资助

摘　　要：研究了五种高等水生植物(黑藻、金鱼藻、水花生、茭白、空心菜)对蛋白核小球藻、斜生栅藻生长的抑制作用。试验结果显示,各种受试植物均有不同程度的克藻效果,金鱼藻与黑藻的克藻作用最强,水花生的作用次之。克藻效果以受试植物与藻共培养最佳,其次为连续添加种植水,表明在植物的生长过程中其化感物质是连续释放且能迅速降解的,而黑藻干物质的浸提液所具有的克藻效应说明有些化感物质对一定温度和光照是较稳定的。Allelopathic effects of Hydrilla verticillate R, Ceratophyllum demersum L, ALternanthera philoxeroides G, Zizania latifolia S, and Ipomoea aquatica F on Chlorella pyrenoidosa C and Scenedesmus obliquus K were examined by a series of experiments in a short - term bioassay. The results showed that all the test plants can inhibit in varied degree, the algal growth. Ceratophyllum demersum L and Hydrilla verticillate R had the strongest ability to inhibit the algal growth, Alternanthera philoxeroides G was the second. The inhibitory activi. was different with the cultural methods： Co -culture was the best, continuous adding the planting water assay was the second, which suggested that allelopathic compounds excreted by higher aquatic plants were continuous and could be degraded rapidly. The inhibitory action against the algae by the filtrate from dry Hydrilla verticillata indicated some allelopathic substances were stable at some temperature and light.

关 键 词：高等水生植物 化感作用 蛋白核小球藻 斜生栅藻 生长抑制 

分 类 号：Q948.122.1[生物学—植物学]