香蒲中挥发油对铜绿微囊藻的化感抑制作用

Allelopathic inhibitory effect of the volatile oil from Typha latifolia on Microcystin aeruginosa

湖泊富营养化问题已日益成为全球性的水环境污染问题之一。开发一种有效、安全控制有害藻类暴发的新方法是非常必要的。香蒲(Typhalatifola)为多年生宿根性沼泽草本挺水植物,在中国分布广泛,其对受污染河水中COD、氨氮及TP均具有较好的去除效果。为了探讨香蒲对铜绿微囊藻(Microcystin aeruginosa)的化感作用,采用石油醚浸提的方法提取并分离了香蒲中的挥发油,并通过气相色谱(GC)/质谱(MS)对其化学组成进行了分析,共鉴定出了β-紫罗兰酮、棕榈醛等13种成分。同时,生物检测表明,挥发油对铜绿微囊藻的生物量增长具有抑制作用。

Lakes eutrophication has became one of the major problems of aquatic environment pollution.It was essential to develop a safe and effective method to control the harmful alga bloom.Typha latifolia was perennial herb emergent plants,which wildly spread in China.The plant was effective in removal of COD,ammonia nitrogen and TP from polluted river.In order to find out the allelopathic effects of Typha latifolia on Microcystin aeruginosa,the volatile oil of Typha latifolia was extracted by petroleum ether,and the components of the volatile oils were analyzed by gas chromatograph-mass spectrometry（GC/MS）.13 compounds including β-ionone,palmital were identified in volatile oils.The allelopathic effect of the volatile oils was also explored by bioassay of M.aeruginosa,the volatile oils had activity to inhibit the growth of M.aeruginosa.