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萘胁迫对金鱼藻生理特性的影响

李卫兵 肖能文 高吉喜 张宇 李俊生 全占军 盛岩

李卫兵, 肖能文, 高吉喜, 张宇, 李俊生, 全占军, 盛岩. 萘胁迫对金鱼藻生理特性的影响[J]. 环境科学研究, 2013, 26(4): 425-431.
引用本文: 李卫兵, 肖能文, 高吉喜, 张宇, 李俊生, 全占军, 盛岩. 萘胁迫对金鱼藻生理特性的影响[J]. 环境科学研究, 2013, 26(4): 425-431.
LI Wei-bing, XIAO Neng-wen, GAO Ji-xi, ZHANG Yu, LI Jun-sheng, QUAN Zhan-jun, SHENG Yan. Effects of Naphthalene Stress on the Physiological Characteristics of Ceratophyllum demersum[J]. Research of Environmental Sciences, 2013, 26(4): 425-431.
Citation: LI Wei-bing, XIAO Neng-wen, GAO Ji-xi, ZHANG Yu, LI Jun-sheng, QUAN Zhan-jun, SHENG Yan. Effects of Naphthalene Stress on the Physiological Characteristics of Ceratophyllum demersum[J]. Research of Environmental Sciences, 2013, 26(4): 425-431.

萘胁迫对金鱼藻生理特性的影响

基金项目: 国家水体污染控制与治理科技重大专项(2009ZX07207-002,2009ZX07207-001-04);国家科技支撑计划项目(2008BAC43B01)

Effects of Naphthalene Stress on the Physiological Characteristics of Ceratophyllum demersum

  • 摘要: 为探讨NAP(萘)对金鱼藻的毒性及其机理,采用1/10Hoagland营养液水培法,研究了ρ(NAP)分别为1.25、2.5、5、10、20和40mg/L下金鱼藻中w(叶绿素)、w(可溶性蛋白)、w(GSH)(GSH为还原型谷胱甘肽)、MDA(丙二醛)含量及SOD(超氧化物歧化酶)和POD(过氧化物酶)活性的变化. 结果表明,在ρ(NAP)为1.25和2.5mg/L时,金鱼藻的各项生理活动与对照组基本没有显著差异(P>0.05). ρ(NAP)越高,对金鱼藻的毒性越大,当ρ(NAP)达40mg/L时,金鱼藻的生理活动受到显著影响(P<0.05). 在胁迫后期(第5、7天),随着ρ(NAP)的增加,w(叶绿素)、w(可溶性蛋白)以及SOD活性均有不同程度的下降,同时w(GSH)和MDA含量上升,膜脂过氧化加剧. 说明w(叶绿素)、MDA含量和SOD活性等是金鱼藻对萘胁迫较为敏感的参数,能表征萘胁迫的毒性.

     

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出版历程
  • 收稿日期:  2012-09-25
  • 修回日期:  2013-02-22
  • 刊出日期:  2013-04-25

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