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| Physiological and Biochemical Changes in Wheat Seedlings Under Sulfamonomethoxine Stress |
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| KeyWord:sulfamonomethoxine; wheat; seedling; physiological and biochemical parameter |
| Author Name | Affiliation | | JIN Cai-xia | Key Laboratory for Yellow River and Huaihe River Water Environmental and Pollution Control, Minisitry of Education, Henan Key Laboratory of Environmental Pollution Control, School of Chemistry and Environmental Sciences, Henan Nomal University, Xinxiang 452007, Henan, China | | GUO Hua | Key Laboratory for Yellow River and Huaihe River Water Environmental and Pollution Control, Minisitry of Education, Henan Key Laboratory of Environmental Pollution Control, School of Chemistry and Environmental Sciences, Henan Nomal University, Xinxiang 452007, Henan, China | | LIU Jun-jun | Key Laboratory for Yellow River and Huaihe River Water Environmental and Pollution Control, Minisitry of Education, Henan Key Laboratory of Environmental Pollution Control, School of Chemistry and Environmental Sciences, Henan Nomal University, Xinxiang 452007, Henan, China |
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| Abstract: |
| Sulfamonomethoxine, widely used in livestock production, may eventually affect plants after entering the soil environment via animal feces. A pot experiment was carried out to investigate the physiological and biochemical responses of wheat seedlings to different concentrations of sulfamonomethoxine（SMM）. Compared to the control, SMM treatments had no significant influences on chlorophyll（Chl）contents during the first 3 days of the stress, but the treatments with 10 mg·kg-1 and 20 mg·kg-1 reduced the Chl contents in the 5th to 7th day. Addition of SMM markedly decreased the contents of soluble protein（SP）, but increased methyl di aldehyde（MDA） contents as compared to the control, with stronger influence on root system than blades. Peroxidase（POD） activity was decreased by SMM at lower than 10 mg·kg-1, while increased at higher concentrations. Superoxide dismutase（SOD） activity showed similar patterns to POD under SMM stresses, but the differences from the control became less as the stress time lengthened. |
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