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首页> 外文期刊>Environmental toxicology and chemistry >Growth and Physiological Responses in Myriophyllum spicatum　L. Exposed to Linear Alkylbenzene Sulfonate
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Growth and Physiological Responses in Myriophyllum spicatum　L. Exposed to Linear Alkylbenzene Sulfonate

机译：直链烷基苯磺酸盐暴露下的鼠尾藻的生长和生理响应

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摘要

The exogenous organic pollutant linear alkylbenzene sulfonate (LAS) is frequently detected in water. Myriophyllum spicatum L., a submerged aquatic plant, is a popular choice for phytoremediation. The present study investigated the growth and physiological responses of M. spicatum to different concentrations of LAS (0, 0.1, 0.5, 1, 10, 50, 100, and 500 mg/L) after 14 and 28 d of treatment. After 14 d, higher LAS doses (50-100 mg/L) significantly reduced the growth of M. spicatum compared with controls. Plants died at 500 mg/L LAS. Chlorophyll a and total chlorophyll contents were markedly increased at higher doses of LAS (10-100 mg/L). Significantly enhanced peroxidase (POD) activity was found at 50 mg/L of LAS, and decreased superoxide dismutase (SOD) activity at 100 mg/L of LAS; other indices showed no significant changes under LAS stress. After 28 d, no significant effect was observed on the growth of plants exposed to LAS doses of 0.1 to 100 mg/L, whereas plants died at 500 mg/L LAS. Compared with controls. SOD activity increased significantly at 0.1 mg/L LAS and maintained the same level as controls at higher concentrations. At all LAS exposures, POD activity was higher than that of controls. Other indices for M. spicatum were not remarkably changed at 28 d. Our results indicate that the oxidative damage to M. spicatum caused by LAS stress after 28 d is clearly less than such damage at 14 d. Environ Toxicol Chem 2019;38:2073-2081. (c) 2019 SETAC.
机译：在水中经常检测到外源性有机污染物线性烷基苯磺酸盐（LAS）。沉水的水生植物Myriophyllum spicatum L.是植物修复的流行选择。本研究调查了治疗14天和28天后角叉螺旋藻对不同浓度LAS（0、0.1、0.5、1、10、50、100和500 mg / L）的生长和生理响应。 14 d后，与对照组相比，较高的LAS剂量（50-100 mg / L）显着降低了穗状分枝杆菌的生长。植物以500 mg / L LAS死亡。在较高剂量的LAS（10-100 mg / L）下，叶绿素a和总叶绿素含量显着增加。在50 mg / L的LAS中发现过氧化物酶（POD）活性显着增强，而在100 mg / L的LAS中发现过氧化物歧化酶（SOD）活性降低；其他指数显示在LAS压力下没有显着变化。 28天后，未观察到暴露于LAS剂量为0.1至100 mg / L的植物的生长有显着影响，而以500 mg / L的LAS死亡。与对照相比。在0.1 mg / L LAS下，SOD活性显着增加，并在较高浓度下与对照组保持相同水平。在所有LAS暴露下，POD活性均高于对照。在28 d时，其他的M. spicatum指标没有明显变化。我们的结果表明，LAS应力在28 d后引起的对十字绣分枝杆菌的氧化损伤明显小于14 d时的损伤。 Environ Toxicol Chem 2019; 38：2073-2081。 （c）2019年SETAC。

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  • 来源
    《Environmental toxicology and chemistry》 |2019年第9期|2073-2081|共9页
  • 作者

    Liu Yilin; Liu Nian; Zhou Yuhong; Wang Feng; Zhang Yizhe; Wu Zhonghua;

  • 作者单位

    Wuhan Univ, Coll Life Sci, Natl Field Stn Freshwater Ecosyst Liangzi Lake, Wuhan, Hubei, Peoples R China;

    Wuhan Univ, Coll Life Sci, Natl Field Stn Freshwater Ecosyst Liangzi Lake, Wuhan, Hubei, Peoples R China;

    Yangtze River Water Conservancy Comm, Hydrol Bur, Hanjiang River Hydrol & Water Resources Survey Bu, Xiangyang, Hubei, Peoples R China;

    Yangtze River Water Conservancy Comm, Hydrol Bur, Hanjiang River Hydrol & Water Resources Survey Bu, Xiangyang, Hubei, Peoples R China;

    Yangtze River Water Conservancy Comm, Hydrol Bur, Hanjiang River Hydrol & Water Resources Survey Bu, Xiangyang, Hubei, Peoples R China;

    Wuhan Univ, Coll Life Sci, Natl Field Stn Freshwater Ecosyst Liangzi Lake, Wuhan, Hubei, Peoples R China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);美国《化学文摘》(CA);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Aquatic plants; Aquatic toxicology; Phytotoxicity; Linear alkylbenzene sulfonate; Antioxidant defense systems; Myriophyllum spicatum L;

    机译：水生植物;水生毒理学;植物毒性;线性烷基苯磺酸盐;抗氧化防御系统;肌肉植物香肠;

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