生物学杂志

生物学杂志 ›› 2020, Vol. 37 ›› Issue (5): 53-.doi: 10.3969/j.issn.2095-1736.2020.05.053

• 研究报告 • 上一篇    下一篇

芦荟大黄素对铜绿微囊藻的化感抑制作用研究

  

  1. 1. 天津科技大学 化工与材料学院， 天津 300457； 2. 天津科技大学 海洋与环境学院， 天津 300457；3. 天津市环境保护科学研究院， 天津 300191
  • 出版日期:2020-10-18 发布日期:2020-10-14
  • 通讯作者: 曹井国, 副教授, 硕士生导师, 研究方向为水体治理及污染防治技术，E-mail: cjg@tust.edu.cn
  • 作者简介:赵红艳，硕士，研究方向为环境水处理研究，E-mail:664947990@qq.com
  • 基金资助:
    国家水体污染控制与治理科技重大专项(2014ZX07203-009-004)

Study on allelopathic inhibition of aloe-emodin on Microcystis aeruginosa

  1. 1. School of Chemical Engineering and Materials, Tianjin University of Science and Technology, Tianjin 300457;2. College of Oceanology and Environment, Tianjin University of Science and Technology, Tianjin 300457;3. Tianjin Academy of Environmental Protection Science, Tianjin 300191, China
  • Online:2020-10-18 Published:2020-10-14

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摘要： 使用化感物质控制有害藻类的暴发被证明是一种既环保又有前途的方法。针对蓝藻水华问题，选取芦荟大黄素作为化感物质抑藻剂，研究了芦荟大黄素浓度对铜绿微囊藻生长、光合作用、酶活性和微囊藻毒素的影响。实验结果表明：芦荟大黄素对铜绿微囊藻具有较强的抑制作用，随着浓度的增加，抑制效果显著提高。当芦荟大黄素的浓度为200 mg/L时，经过12 d的接触，对铜绿微囊藻生长抑制率达到了90%；对藻细胞中叶绿素a和类胡萝卜素抑制率分别为78%和90%；对藻胆蛋白中藻蓝蛋白、别藻蓝蛋白和藻红蛋白的抑制率分别达到了100%、95%和89%；对可溶性蛋白和藻毒素的抑制率分别达到了73%和100%；实验过程中藻细胞的SOD和CAT活性呈现先升高后降低的趋势，最终SOD和CAT活性的抑制率分别达到了62%和33%。

关键词: 铜绿微囊藻, 芦荟大黄素, 化感作用, 抑制作用

Abstract: Based on the problem of cyanobacteria bloom, aloe-emodin was selected as an algaecide, and the effects on the growth, photosynthesis, enzyme activity and microcystins of Microcystis aeruginosa by aloe-emodin were studied. The results showed that aloe-emodin had a strong inhibitory effect on Microcystis aeruginosa. With the concentration increased, the inhibitory effect was significantly improved. When the concentration of aloe-emodin was 200 mg/L, after 12 days of contact, the inhibition rate of cyanobacteria reached to 90%; the inhibition rates of chlorophyll a and carotenoids in algae cells were 78% and 90%, respectively; the inhibition rates of phycocyanin, allophycocyanin and phycoerythrin in phycobiliproteins were 100%, 95% and 89%, respectively. The inhibition rates of soluble protein and algal toxin were 73% and 100%, respectively. During the experiment, the SOD and CAT activities of algae cells increased firstly and then decreased. Finally, the inhibition rates of SOD and CAT activities were 62% and 33%, correspondingly.

Key words: Microcystis aeruginosa, aloe-emodin, allelopathy, inhibition

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