文档介绍：中国环境科学 2006,26(3):355~358 China Environmental Science

菖蒲对铜绿微囊藻的化感作用

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张维昊 1 ,周连凤 1,吴小刚 1,宋立荣 2 (,湖北武汉 430072;
研究所,湖北武汉 430072)

摘要:采用两厢培养池研究了菖蒲(Acorus calamus)对铜绿微囊藻(Microcystis aeruginosa),在排除藻菌作用和营
养竞争前提下,共培养条件下的菖蒲可抑制微囊藻的生长,使藻液光密度(OD680)降低;抑制效应取决于菖蒲和微囊藻之间的相对生物量,实
验条件下 100g 菖蒲在初始藻液光密度为时有最强抑藻效应;抑藻化感物质的释放与菖蒲根茎密切相关,根茎受损的菖蒲无抑藻效应;在
抑藻过程中对藻细胞的生理指标分析表明,菖蒲的存在降低了藻细胞内的蛋白含量,使 SOD、MDA 和 CAT 等抗氧化系统酶的活性增加,化
感物质造成活性氧的过量积累可能是微囊藻死亡的原因之一.
关键词:菖蒲;铜绿微囊藻;化感作用
中图分类号:X171 文献标识码:A 文章编号:1000-6923(2006)03-0355-04

Allelopathic effect of Acorus calamus on Microcystis aeruginosa. ZHANG Wei-hao1*, ZHOU Lian-feng1, WU
Xiao-gang1, SONG Li-rong2 ( of Resources and Environmental Sciences, Wuhan University, Wuhan 430072,
China; of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China). China Environmental Science,
2006,26(3):355~358
Abstract:Inhibitory effects of Acorus calamus on Microcystis aeruginosa were studied under coexistence conditions.
Through cultured in two-cell container and excluded the influence of bacteria and nutrient, A. calamus could inhibit the
growth of M. aeruginosa, which was observed by the decrease in optical density (OD680) of the culture. The intensity of
allelopathy was related to paratively biomass of A. calamus and M. aeruginosa, for 100g of A. calamu
demonstrated the s