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首页> 外文期刊>RSC Advances >Toxicity of graphene oxide to white moss Leucobryum glaucum
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Toxicity of graphene oxide to white moss Leucobryum glaucum

机译：石墨烯氧化物毒性氧化物对白苔藓睫毛葡萄糖

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摘要

Environmental biosafety is the key issue in the healthy development of the graphene industry, but the toxicity of graphene to moss is still unknown to date. Herein, we investigated the influence of graphene oxide (GO) on the growth, chlorophyll content and structure of white moss Leucobryum glaucum. Our results indicated that GO did not alter the fresh weight of L. glaucum, but inhibited the dry weight gain seriously, resulting in higher water-holding rates. GO induced the suppression of chlorophyll contents and up-regulated the chlorophyll a/b ratios, thus might influence the photosynthesis of L. glaucum. GO disturbed the microstructure and ultrastructure of L. glaucum at high concentrations, inducing the destruction of cell wall, the separation of cell wall and membrane, and the formation of micropores on the leave surface. GO led to the decrease of glutathione levels and catalase activities of L. glaucum, suggesting the existence of oxidative stress. Our results collectively suggested that graphene had the potential environmental risk to moss plants, and the release of graphene into the environment should be strictly restricted.
机译：环境生物安全性是石墨烯行业健康发展的关键问题，但迄今为止，石墨烯对苔藓的毒性仍然是未知的。在此，我们研究了石墨烯氧化物（GO）对白苔白胶葡糖的生长，叶绿素含量和结构的影响。我们的结果表明，Go没有改变L.Glaucum的鲜重，但抑制了干重的严重增值，导致更高的水持率。诱导抑制叶绿素含量和上调叶绿素A / B比，因此可能影响L.Glaucum的光合作用。在高浓度下扰乱L.Glaucum的微观结构和超微结构，诱导细胞壁的破坏，细胞壁和膜的分离，以及在离开表面上形成微孔。转而导致L.Glaucum的谷胱甘肽水平和过氧化氢酶活性降低，表明存在氧化应激。我们的结果集体建议石墨烯对苔藓植物具有潜在的环境风险，并且应严格限制石墨烯进入环境的释放。

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  • 来源
    《RSC Advances》 |2017年第79期|共7页
  • 作者

    Lin Xiaowei; Chen Lingyun; Hu Xin; Feng Shicheng; Huang Liu; Quan Guoping; Wei Xue; Yang Sheng-Tao;

  • 作者单位

    Southwest Minzu Univ Coll Chem &

    Environm Protect Engn Chengdu 610041 Sichuan Peoples R China;

    Southwest Minzu Univ Coll Chem &

    Environm Protect Engn Chengdu 610041 Sichuan Peoples R China;

    Southwest Minzu Univ Coll Chem &

    Environm Protect Engn Chengdu 610041 Sichuan Peoples R China;

    Southwest Minzu Univ Coll Chem &

    Environm Protect Engn Chengdu 610041 Sichuan Peoples R China;

    Southwest Minzu Univ Coll Chem &

    Environm Protect Engn Chengdu 610041 Sichuan Peoples R China;

    Southwest Minzu Univ Coll Chem &

    Environm Protect Engn Chengdu 610041 Sichuan Peoples R China;

    Southwest Minzu Univ Coll Chem &

    Environm Protect Engn Chengdu 610041 Sichuan Peoples R China;

    Southwest Minzu Univ Coll Chem &

    Environm Protect Engn Chengdu 610041 Sichuan Peoples R China;

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  • 正文语种 eng
  • 中图分类 化学;
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