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酚类化合物短期暴露对小麦和大麦苗期根伸长的影响
引用本文:王珊,苏玉红,乔敏.酚类化合物短期暴露对小麦和大麦苗期根伸长的影响[J].生态毒理学报,2015,10(2):283-289.
作者姓名:王珊  苏玉红  乔敏
作者单位:1. 新疆大学化学化工学院,乌鲁木齐830046;中国科学院生态环境研究中心,北京100085;2. 新疆大学化学化工学院,乌鲁木齐,830046;3. 中国科学院生态环境研究中心,北京,100085
基金项目:国家高技术研究发展计划(863)项目(2012AA06302);国家自然科学基金(21377154)
摘    要:采用小麦和大麦为受试作物,以其在受试化合物污染的土壤中培育3 d后获得的根伸长的半数抑制浓度(IC50)评价了12种酚类化合物的毒性效应。结果表明,在所设浓度范围内,酚类对作物根伸长均存在剂量-效应关系。小麦对受试酚类的IC50范围为:12.92~231.76 mg·kg-1,其中邻苯二酚只在最高浓度500 mg·kg-1时对小麦的毒性效应显著。大麦对受试化合物的IC50范围为:7.15~478.31 mg·kg-1。小麦对3-甲基酚、双酚A、2-萘酚和壬基酚相对敏感,而其它8种化合物则是大麦相对更敏感。酚类化合物对小麦和大麦的毒性强度整体趋势一致。

关 键 词:酚类化合物  小麦  大麦  根伸长  植物毒性
收稿时间:3/7/2014 12:00:00 AM
修稿时间:5/9/2014 12:00:00 AM

Effect of Short-term Exposure of Phenols on Root Elongation of Wheat and Barley
Wang Shan,Su Yuhong and Qiao Min.Effect of Short-term Exposure of Phenols on Root Elongation of Wheat and Barley[J].Asian Journal of Ecotoxicology,2015,10(2):283-289.
Authors:Wang Shan  Su Yuhong and Qiao Min
Institution:1. College of Chemistry and Chemical Engineering, Xinjiang University, Urumqi 830046, China 2. Research Center for Eco-environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China;College of Chemistry and Chemical Engineering, Xinjiang University, Urumqi 830046, China;Research Center for Eco-environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
Abstract:To evaluate the toxic effects of 12 phenols, the root elongation of wheat and barley exposing to different concentrations were investigated. Results showed that root elongation was significantly inhibited with the increasing of phenols. The IC50 (half maximal inhibitory concentration of root elongation) was used as an indicator. The IC50 values ranged from 12.92 to 231.76 mg·kg-1 for wheat and between 7.15 and 478.31 mg·kg-1 for barley. For pyrocatechol significant inhibition of root elongation for wheat was observed only under the highest concentration of 500 mg·kg-1. Wheat was relatively more sensitive to 3-cresol, bisphenol A, 2-naphthol and nonylphenol, while barley was more sensitive to other phenols. In general, the rank of phenols toxicity on wheat was similar to that of barley.
Keywords:phenols  root elongation  phytotoxicity  wheat  barley
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