Growth Inhibition of Blue-green Algae by Allelopathic Effects of Macrophytes
Growth Inhibition of Blue-green Algae by Allelopathic Effects of Macrophytes
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DOI：
10.2521/jswtb.33.215
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发表时间：
1997-12
期刊：
影响因子：
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通讯作者：
S. Nakai;Yutaka Inoue;M. Hosomi;A. Murakami
中科院分区：
文献类型：
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作者：
S. Nakai;Yutaka Inoue;M. Hosomi;A. Murakami
在含有不同浓度的水生植物的混合培养系统中测定了水生植物对蓝绿藻（铜绿微囊藻、水华鱼腥藻、纤细席藻）生长的抑制作用（即，共存分析）。以密花牛尾草、水盾草、穗花狐尾藻、金鱼藻、荸荠、眼子菜、狼牙棒、无柄石龙子和密齿苦草为实验植物。共存实验表明，9种水生植物中，C. caroliniana和M. spicatum是唯一抑制所有种类的蓝绿色藻类生长的种类。M. spicatum比C. caroliniana的培养液，由于其具有较强的抑制作用，因此，我们采用M. spicatum进行藻类试验，以证实M.穗花象是由M.穗状花序微囊藻的生长铜绿假单胞菌培养液的准连续添加对铜绿假单胞菌的生长有明显的抑制作用。spicatum，而初始添加并不抑制它们的生长。这一结果为化感物质的存在提供了证据，表明该物质是由M.穗状花序
Inhibitory effects of macrophytes on the growth of blue-green algae (Microcystis aeruginosa, Anabaena flos-aquae, Phormidium tenue) were assayed in a mixed culture system with various concentrations of macrophytes, (i.e., coexistence assay) . Egeria densa, Cabomba caroliniana, Myriophyllum spicatum, Ceratophyllum demersum, Eleocharis acicularis, Potamogeton oxyphyllus, Potamogeton crispus, Limnophila sessiliflora and Vallisneria denseserrulata were used as macrophytes. The coexistence assay showed the inhibitory effects of the macrophytes on algal growth and that, among the 9 macrophytes, C. caroliniana and M. spicatum were the only species to inhibit growth of all the species of blue green algae. The inhibitory effects of M. spicatum were stronger than those of C. caroliniana.Due to its strong inhibition, we used the cultured solution of M. spicatum for an algal assay to confirm that the inhibitory effect of M. spicatum is caused by allelopathic compounds secreted by M. spicatum. The growth of M. aeruginosa was significantly inhibited by the quasi-continuous addition of the cultured solution of M. spicatum, whereas the initial addition did not inhibit their growth. Such results provide the evidence of the allelopathic compounds, which must be continuously secreted by M. spicatum.