Effect of butachlor and malathion on growth and antioxidant enzyme system in common seepweed herb Suaeda heteroptera
HE Jie, HE Xiao-tong, LIU Yuan, HE Xin, LIU Chang-fa
Key Laboratory of Nearshore Marine Environmental Science and Technology of Liaoning Province’s Lniversity, College of Marine Science and Environ-ment, Dalian Ocean Lniversity, Dalian 116023, China
Abstract: The effects of different concentrations of pesticides butachlor and malathion on growth including germination,height,and weight,contents of superoxide anion free radical and hydrogen peroxide,and activities of antioxidant enzymes superoxide dismutase（ SOD）,catalase（ CAT）,and peroxidase（ POD） were studied in common seepweed herb Suaeda heteroptera by a pot experiment. The results showed that the common seepweed herb had stable enzyme activities,low lipid peroxidation and the same growth rate as the plant in the control group at below 8mg/kg of butachlor,showing little harmful. At over 8 mg/kg of butachlor,however,there were higher content of MDA and membrane lipid peroxidation and poor growth in the plant exposed to butachlor,the plant being very harmful. Within the concentrations in present experiment,the plant showed very good tolerance to malathion,including high germination rate and strong vitality,and maintained a relatively stable level against toxicity for a long time,even though the plant had variations in growth and enzyme activities. Based on the MDA content and germination rate,malathion even had positive effects.
何洁, 何晓彤, 刘远, 贺鑫, 刘长发. 丁草胺和马拉硫磷对翅碱蓬生长及抗氧化酶系统的影响[J]. 大连海洋大学学报, 2016, 31(5): 551-558.
HE Jie, HE Xiao-tong, LIU Yuan, HE Xin, LIU Chang-fa. Effect of butachlor and malathion on growth and antioxidant enzyme system in common seepweed herb Suaeda heteroptera. Journal of Dalian Ocean University, 2016, 31(5): 551-558.
2016, Vol. 31 
