纳米铁对蚯蚓蛋白质含量和抗氧化酶系的影响

发布时间：2018-05-07 22:05

本文选题：纳米铁 + 赤子爱胜蚓　；参考：《环境科学与技术》2016年11期

【摘要】：采用人工土壤法,研究了不同暴露浓度下纳米铁对赤子爱胜蚓(Eisenia foetida)体内蛋白质含量和超氧化物歧化酶(SOD)、过氧化氢酶(CAT)和谷胱甘肽过氧化物酶(GSH-PX)等抗氧化酶活性的影响。结果表明:当纳米铁浓度在10~500 mg/kg时,纳米铁对蚯蚓体内蛋白质含量未产生显著性影响(P0.05)。2 000 mg/kg组比对照组蛋白质含量有明显增加,最高时比对照组增加了74%。蚯蚓体内CAT、SOD和GSH-PX对纳米铁浓度响应不同,在10~100 mg/kg时CAT、SOD和GSH-PX均无响应,当纳米铁浓度在500~2 000 mg/kg时这3种酶的活性变化趋势基本一致,都呈现先增加后降低的趋势。
[Abstract]:The effects of nanometer iron on protein content and activities of superoxide dismutase (SOD), catalase (CAT) and glutathione peroxidase (GSH-PX) in Eisenia foetida were studied by artificial soil method. The results showed that when the concentration of nano-iron was 10 ~ 500 mg/kg, the protein content of earthworm was not significantly affected by nano-iron. The protein content of P0.050.2000 mg/kg group was significantly higher than that of the control group, and the highest concentration was 74% higher than that of the control group. The response of GSH-PX and SOD to nano-iron concentration was different in earthworm, and no response was found at 10 ~ 100 mg/kg. When the concentration of nano-Fe was 500 ~ 2 000 mg/kg, the activity of these three enzymes was basically the same, all of them showed a tendency of first increasing and then decreasing.
【作者单位】：天津市水质科学与技术重点实验室/天津城建大学环境与市政工程学院;中国石油华北石化公司;南开大学环境科学与工程学院/环境污染过程与基准教育部重点实验室/天津市生物质类固废资源化技术中心;
【基金】：国家自然科学基金(41173102)
【分类号】：X503.22

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