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| Ecotoxicity of cephalosporin C on vegetable seed germination |
| Received:April 16, 2020 |
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| KeyWord:cephalosporin C;ecotoxicity;germination rate;radicle length |
| Author Name | Affiliation | E-mail | | ZHOU Jie-ya | School of Environmental Science and Engineering, Hebei University of Science & Technology, Shijiazhuang 050080, China
Research Institute of Solid Waste Management, Chinese Research Academy of Environmental Sciences, Beijing 100012, China | | | REN Ai-ling | School of Environmental Science and Engineering, Hebei University of Science & Technology, Shijiazhuang 050080, China | | | LIU Hong-bo | Research Institute of Solid Waste Management, Chinese Research Academy of Environmental Sciences, Beijing 100012, China | | | WU Hao | Research Institute of Solid Waste Management, Chinese Research Academy of Environmental Sciences, Beijing 100012, China | | | MA Shuang | Research Institute of Solid Waste Management, Chinese Research Academy of Environmental Sciences, Beijing 100012, China
School of Ecology and Environment, Inner Mongolia University, Hohhot 010021, China | | | CUI Si-jia | Research Institute of Solid Waste Management, Chinese Research Academy of Environmental Sciences, Beijing 100012, China
College of Chemical Engineering, Northeast Electric Power University, Jilin 132012, China | | | WANG Xu-ming | Beijing Agro-biotechnology Research Center, Beijing Academy of Agriculture and Forestry Sciences, Beijing 100097, China | | | TIAN Shu-lei | Research Institute of Solid Waste Management, Chinese Research Academy of Environmental Sciences, Beijing 100012, China | tianslcraes@126.com |
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| Abstract: |
| Four types of vegetables, including lettuce, leaf lettuce, pakchoi, and rape were selected as research objects to explore the ecotoxicity of cephalosporin C on vegetable growth in the harmless disposal process of cephalosporin residue and fertilizer utilization. The germination rate of seeds, the fresh weight of seedlings, and the hypocotyl and radicle lengths were used as toxicity sensitivity indicators. The dose-response relation between seven concentration levels of cephalosporin C solution and four different vegetables was studied using the moisturizing culture method, and differences in the ecotoxicity and relative sensitivity indexes of different vegetables under cephalosporin C stress were analyzed. The results placed the ecological sensitivity indicators of different vegetables in the following order:radicle > fresh weight > hypocotyl > germination rate, and there was a significant linear relationship between the concentration of the cephalosporin C solution and the radicle growth rate of the four vegetables(P<0.01). The no observed effect concentrations(NOEC)of cephalosporin C for the four vegetables were 868.10 mg·L-1, 727.25 mg·L-1, 796.39 mg·L-1, and 629.27 mg·L-1. The toxicity sensitivities of the four vegetables to cephalosporin C were ranked as follows:rape > leaf lettuce > pakchoi > lettuce, in which the IC50 value of rape was 1 538.36 mg·L-1. The results indicate that rape is more suitable as a plant ecotoxicity indicator than leaf lettuce, pakchoi, and lettuce. |
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