鱼腥藻毒素的生态毒性研究及展望
Research and Prospects of Eco-toxicity of Anatoxins
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摘要: 在全球水体富营养化和气候变暖不断加剧的背景下,蓝藻水华及其产生的蓝藻毒素给人类健康和生态环境带来的不利影响不容忽视。鱼腥藻毒素(anatoxins,ATXs)是由鱼腥藻、束丝藻和颤藻等淡水丝状蓝藻产生的一类具有神经毒性的毒素,直接饮用ATXs污染的水体或间接暴露于其中均可导致接触动物发生急性中毒事件。本文根据现有研究结果,综述介绍了ATXs的致毒机理、在水体的分布、生态毒性效应以及环境归趋,并对相关研究领域进行展望,以期为未来有效防控ATXs的污染提供科学参考。Abstract: The adverse influences of cyanobacterial blooms and cyanotoxins on human health and ecological environment are not negligible under the background of progressive eutrophication and global warming. Anatoxins (ATXs) are one kind of neuro-cyanotoxins produced by several genera of freshwater filamentous cyanobacteria, including Anabaena, Aphanizomenon and Oscillatoria, etc. Direct drinking or indirect exposure to ATXs-contaminated water could lead to the acute intoxication of the contacted animals. In this review, recent progress concerning toxic mechanism, occurrence in freshwater, ecological toxicity and environmental fates of ATXs are summarized according to the current state of knowledge.Meanwhile, the future research directions in related field are discussed, which will provide scientific references for future effective controls of ATXs pollution.
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Key words:
- anatoxins /
- cyanobacteria /
- toxic effects /
- environmental fate
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