کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6301456 | 1618012 | 2016 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Effect of Cu and Pb pollution on the growth and antionxidant enzyme activity of Suaeda heteroptera
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کلمات کلیدی
موضوعات مرتبط
علوم زیستی و بیوفناوری
علوم کشاورزی و بیولوژیک
بوم شناسی، تکامل، رفتار و سامانه شناسی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Effect of Cu and Pb pollution on the growth and antionxidant enzyme activity of Suaeda heteroptera Effect of Cu and Pb pollution on the growth and antionxidant enzyme activity of Suaeda heteroptera](/preview/png/6301456.png)
چکیده انگلیسی
This paper studied the impact of Cu and Pb pollution on concentrations of reactive oxygen species (superoxide anion radical (O2ââ) and peroxide (H2O2)) and on the activity of antioxidant enzyme (superoxide dismutase (SOD), catalase (CAT), and peroxidase (POD)) in the halophyte Suaeda heteroptera. At concentrations less than 50 mg kgâ1, Cu had little effect on S. heteroptera. At concentrations higher than 200 Cu mg kgâ1, the growth of S. heteroptera was significantly inhibited, an impact that was most pronounced in seedling weight (p < 0.05). At concentrations of Pb higher than 400 mg kgâ1, the growth of S. heteroptera was also significantly affected (p < 0.05). Antioxidant enzyme activities in S. heteroptera increased and then decreased with increasing Cu concentrations, while reactive oxygen species concentrations continually increased. SOD decreased significantly with Pb pollution (p < 0.05), while the concentrations of reactive oxygen species rose slowly. The combined effect of Cu and Pb contamination on the growth and antioxidant enzyme activities of S. heteroptera was higher than with single Cu. With the increasing concentration of Cu, this synergistic effect enhanced (p < 0.05), indicating that S. heteroptera is more sensitive to Cu than to Pb. Besides, the growth index of S. heteroptera was significantly inhibited with the increasing concentration of single and combined Cu and Pb exposure.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Ecological Engineering - Volume 87, February 2016, Pages 102-109
Journal: Ecological Engineering - Volume 87, February 2016, Pages 102-109
نویسندگان
Jie He, Zhi-xin Ji, Qing-zhi Wang, Chang-fa Liu, Yi-bing Zhou,