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刘传栋,苗秀莲,贾少波,张广征,等. 中国四种土壤跳虫对重金属汞的响应[J]. 生态毒理学报, 2014, 9(5): 964-971
中国四种土壤跳虫对重金属汞的响应
Responses of Four Species of Chinese Soil Collembola to Hg
投稿时间:2014-05-15  修订日期:2014-06-19
DOI:10.7524/AJE.1673-5897.20140515008
中文关键词:    跳虫  半致死浓度  慢性毒性实验  低剂量刺激效应
英文关键词:Hg  Collembola  LC50  Chronic toxicity test  Hormesis
基金项目:国家自然科学基金(No.31272383) ;山东省自然科学基金(No.ZR2010CM018)
作者单位
刘传栋 聊城大学生命科学学院 生态学与生物多样性山东省重点实验室聊城 252059 
苗秀莲 聊城大学生命科学学院 生态学与生物多样性山东省重点实验室聊城 252059 
贾少波 聊城大学生命科学学院 生态学与生物多样性山东省重点实验室聊城 252059 
张广征 聊城大学生命科学学院 生态学与生物多样性山东省重点实验室聊城 252059 
单丽英 聊城大学生命科学学院 生态学与生物多样性山东省重点实验室聊城 252059 
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中文摘要:
      为了研究汞(Hg)对不同种类跳虫的毒性效应,将曲毛裸长(虫兆) (Sinella curviseta)、四刺泡角(虫兆)(Ceratophysella duplicispinosa)、小原等节(虫兆)(Proisotoma minuta)、茉莉花长角(虫兆) (Entomobrya sp.) 4种中国优势跳虫物种分别暴露于Hg的6个浓度组中进行24 h,72 h-LC50急性毒性实验,利用Bliss法测得其4种跳虫的24 h LC50分别为92.42、36.85、34.93、47.56 mg·L-1,其95%置信区间分别为68.57~168.6、29.61~43.53、25.57~44.94、34.33~65.11 mg·L-1;72 h的LC50为21.92、20.17、18.44、15.99 mg·L-1,其95%置信区间分别为16.18~29.82、6.64~29.81、13.87~26.45、10.03~21.37 mg·L-1。将小原等节(虫兆)和茉莉花长角(虫兆)分别暴露于Hg的6个相对较低浓度组中进行28 d生存繁殖实验,得到成虫存活数量和幼虫繁殖及生存数量。结果表明,4种跳虫中茉莉花长角(虫兆)和曲毛裸长(虫兆)对汞有较强的耐受性,小原等节(虫兆)次之,四刺泡角(虫兆)较弱。此外,小原等节(虫兆)在Hg2+浓度为0.05 mg·L-1范围左右条件下有低剂量刺激效应。
              
AuthorAffiliation
Liu ChuandongShandong Key Laboratory of Ecology and Biodiversity, School of Life Sciences, Liaocheng University, Liaocheng 252059, China
Miao XiulianShandong Key Laboratory of Ecology and Biodiversity, School of Life Sciences, Liaocheng University, Liaocheng 252059, China
Jia ShaoboShandong Key Laboratory of Ecology and Biodiversity, School of Life Sciences, Liaocheng University, Liaocheng 252059, China
Zhang GuangzhengShandong Key Laboratory of Ecology and Biodiversity, School of Life Sciences, Liaocheng University, Liaocheng 252059, China
Shan LiyingShandong Key Laboratory of Ecology and Biodiversity, School of Life Sciences, Liaocheng University, Liaocheng 252059, China
英文摘要:
      To study the toxic effects of Hg on diverse species of Collembola, four Chinese dominant species of collembolans, Sinella curviseta, Ceratophysella duplicispinosa, Proisotoma minuta and Entomobrya sp. were exposed to six different concentrations of Hg for 24 h, 72 h LC50 measurement. The LC50 values for S. curviseta, C. duplicispinosa, P. minuta and Entomobrya sp. were calculated according to the Bliss method to be 92.42, 36.85, 34.93, and 47.56 mg·L-1, and 95% confidence limits were 68.57~168.6, 29.61~43.53, 25.57~44.94 and 34.33~65.11 mg·L-1, respectively, while the corresponding 72 h-LC50 values were 21.92, 20.17, 18.44, and 15.99 mg·L-1, and 95% confidence limits were 16.18~29.82, 6.64~29.81, 13.87~26.45 and 10.03~21.37 mg·L-1. At the same time, the Proisotoma minuta and Entomobrya sp. were exposed to Hg of six different lower concentrations for 28 d survival and reproduction experiment to determine the numbers of adults and offspring. The result shows that Entomobrya sp. and S. curviseta have higher tolerance for Hg, followed with P. minuta, while C. duplicispinosa ranks last. In addition, P. minuta display some hormesis at about 0.05 mg L-1 of Hg2+.
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