纳米二氧化硅对两性生殖和孤雌生殖卤虫无节幼体毒性影响的比较研究
发布时间：2018-12-28 16:05
【摘要】：研究了纳米二氧化硅(Nano-SiO_2)悬浮液对美国大盐湖两性生殖型卤虫(Artemia francisana,GSL)和渤海湾孤雌生殖型卤虫(Artemia parthenogenetica,BH)无节幼体的急性毒性和抗氧化酶系统的影响。研究结果表明,Nano-SiO_2对GSL和BH无节幼体24 h-LC50分别为23.02 mg·m L~(-1)和20.96 mg·m L~(-1),属低级毒性。Nano-SiO_2降低了GSL和BH无节幼体还原型谷胱甘肽(GSH)含量,抑制了过氧化氢酶(CAT)和超氧化物歧化酶(SOD)活性,致丙二醛(MDA)含量升高,表明氧化应激反应是导致Nano-SiO_2对卤虫无节幼体致死的作用机制之一。
[Abstract]:The effects of nano-silica (Nano-SiO_2) suspensions on acute toxicity and antioxidase system of dichotomous Artemia (Artemia francisana,GSL) and parthenogenetic Artemia (Artemia parthenogenetica,BH) in Bohai Bay were studied. The results showed that Nano-SiO_2 was 23. 02 mg mL ~ (-1) and 20. 96 mg mL ~ (-1) for 24 h-LC50 of GSL and BH. Nano-SiO_2 decreased the content of reduced glutathione (GSH) in GSL and BH larvae, inhibited the activities of catalase (CAT) and superoxide dismutase (SOD), and increased the content of malondialdehyde (MDA). The results showed that oxidative stress reaction was one of the mechanisms leading to the death of Artemia larvae by Nano-SiO_2.
【作者单位】： 南京农业大学植物保护学院;环境保护部南京环境科学研究所;
【基金】：环保公益性行业科研专项资助(201309049)
【分类号】：X171.5
本文编号：2394154
[Abstract]:The effects of nano-silica (Nano-SiO_2) suspensions on acute toxicity and antioxidase system of dichotomous Artemia (Artemia francisana,GSL) and parthenogenetic Artemia (Artemia parthenogenetica,BH) in Bohai Bay were studied. The results showed that Nano-SiO_2 was 23. 02 mg mL ~ (-1) and 20. 96 mg mL ~ (-1) for 24 h-LC50 of GSL and BH. Nano-SiO_2 decreased the content of reduced glutathione (GSH) in GSL and BH larvae, inhibited the activities of catalase (CAT) and superoxide dismutase (SOD), and increased the content of malondialdehyde (MDA). The results showed that oxidative stress reaction was one of the mechanisms leading to the death of Artemia larvae by Nano-SiO_2.
【作者单位】： 南京农业大学植物保护学院;环境保护部南京环境科学研究所;
【基金】：环保公益性行业科研专项资助(201309049)
【分类号】：X171.5
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