Toxicity of Seven Herbicides to the Three Cyanobacteria Anabaena flos-aquae, Microcystis flos-aquae and Mirocystis aeruginosa
Toxicity of Seven Herbicides to the Three Cyanobacteria Anabaena flos-aquae, Microcystis flos-aquae and Mirocystis aeruginosa
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DOI：
10.22059/ijer.2010.27
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发表时间：
2010-04
影响因子：
3.2
通讯作者：
J. Ma;S. Tong;P. Wang;Jianmeng Chen
中科院分区：
文献类型：
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作者：
J. Ma;S. Tong;P. Wang;Jianmeng Chen
本工作测定了7种除草剂对3种蓝藻的毒性。结果表明：（1）供试蓝藻的干重或叶绿素a与OD 680 nm之间存在极显著的相关性;（2）供试除草剂的毒性大小顺序为：光合抑制型> ACCase抑制型> protox抑制型;（3）不同种类对氰草津、禾草灵、扑草净、西玛津和西草净的敏感性差异在一个数量级以上。蓝藻对所选除草剂的敏感性由高到低依次为：M。Flosaquae > M. Aerobic> A.水牙线蓝细菌可以产生毒素，包括肝毒素例如微囊藻毒素和内毒素例如脂多糖。因此，研究蓝藻和绿色藻类的差异敏感性具有重要的科学意义和现实价值
The toxicity of 7 herbicides to the three cyanobacteria was tested in this work. The results indicated that: (1) There was a highly significant relationship between dried weight or chlorophyll-a and OD680nm for tested cyanobacteria; (2) the toxicity of the tested herbicides with the order from high to low was: photosynthesis-inhibiting > ACCase inhibitor > protox inhibiting herbicides; (3) the sensitivity of various species exposed to cyanazine, diclofop, prometryn, simazine and simetryn varied by over one order of magnitude. The decreasing order of sensitivity of cyanobacteria to the selected herbicides was: M. Flosaquae > M. Aeruginosa > A. flos-aquae. Cyanobacteria can produce toxins including hepatotoxins e.g. microcystins and endotoxins e.g. lipopolysaccharides. Therefore, the research on comparing the differential sensitivity of cyanobacteria and green algae is of important scientific significance and realistic value