Hu Zhen-zhen, Cui Yi-bin, Li Mei, Yu Jing
Huan Jing Ke Xue. 2015 Sep;36(9):3248-54.
The effects of peroxidase(POD), superoxide dismutase(SOD) activities and malondialdehyde(MDA), soluble proteins and chlorophyll in the leaves of Vallisneria natans exposed to different concentrations of nitrogen and phosphorus in the eutrophication water body and chloramphenicol after 7 days were investigated in the study. The soluble protein content increased significantly in group eutrophic water and 0.2 µg.L-1 chloramphenicol, and the concentration of protein was 2.38 times of that in group 0 µg.L-1 chloramphenicol. In group of eutrophic water and 0. 2 µg.L-1 chloramphenicol, POD activities decreased significantly to 33. 84% of that in group 0 µg.L-1 chloramphenicol. With the increasing of the joint concentration, SOD activities decreased. SOD activities in group of mesotrophic and 0. 2 µg.L-1 chloramphenicol was 28. 59% of that in group of 0 µg.L-1 chloramphenicol.
本研究调查了在富营养化水体中暴露于不同浓度氮、磷及氯霉素7天后，苦草叶片中过氧化物酶（POD）、超氧化物歧化酶（SOD）活性以及丙二醛（MDA）、可溶性蛋白和叶绿素的变化情况。在富营养化水体和0.2 µg.L-1氯霉素组中，可溶性蛋白含量显著增加，蛋白质浓度是0 µg.L-1氯霉素组的2.38倍。在富营养化水体和0.2 µg.L-1氯霉素组中，POD活性显著降低至0 µg.L-1氯霉素组的33.84%。随着联合浓度的增加，SOD活性降低。中营养和0.2 µg.L-1氯霉素组的SOD活性是0 µg.L-1氯霉素组的28.59%。
