洛克沙胂暴露胁迫对土壤微生物群落结构特征的影响

张帆; 白玲; 郭瑞子; 马驿; 孙永学

doi:10.7524/AJE.1673-5897.20131125001

生态毒理学报

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张帆, 白玲, 郭瑞子, 马驿, 孙永学. 洛克沙胂暴露胁迫对土壤微生物群落结构特征的影响[J]. 生态毒理学报, 2014, 9(3): 475-482. doi: 10.7524/AJE.1673-5897.20131125001

引用本文:

张帆, 白玲, 郭瑞子, 马驿, 孙永学. 洛克沙胂暴露胁迫对土壤微生物群落结构特征的影响[J]. 生态毒理学报, 2014, 9(3): 475-482. doi: 10.7524/AJE.1673-5897.20131125001

Zhang Fan, Bai Ling, Guo Ruizi, Ma Yi, Sun Yongxue. Effects of Roxarsone Residue on the Microbial Community Structure in Soil[J]. Asian journal of ecotoxicology, 2014, 9(3): 475-482. doi: 10.7524/AJE.1673-5897.20131125001

Citation:

Zhang Fan, Bai Ling, Guo Ruizi, Ma Yi, Sun Yongxue. Effects of Roxarsone Residue on the Microbial Community Structure in Soil[J]. Asian journal of ecotoxicology, 2014, 9(3): 475-482. doi: 10.7524/AJE.1673-5897.20131125001

洛克沙胂暴露胁迫对土壤微生物群落结构特征的影响

1. 国家兽药安全评价(环境评估)实验室, 华南农业大学, 广州 510642;
2. 广东海洋大学农学院动物医学系, 湛江 524088

作者简介: 张帆(1989-),女,硕士研究生,研究方向为兽医药理学与毒理学,E-mail:1105407779@qq.com

基金项目:
国家自然科学基金项目(31172368)

广东省自然科学基金项目(S2011010001090)
中图分类号: X171.5

Effects of Roxarsone Residue on the Microbial Community Structure in Soil

1. National Laboratory of Safety Evaluation(Environmental Assessment) of Veterinary Drugs, South China Agricultural University, Guangzhou 510642, China;
2. Department of Veterinary Medicine of Agricultural College, Guangdong Ocean University, Zhanjiang 524088, China
Fund Project:

摘要: 采用磷脂脂肪酸(phospholipid fatty acid, PLFA)方法,分析了洛克沙胂残留对土壤微生物群落结构的影响特征。结果表明,在整个采样周期中,每克土壤总 PLFA 含量在洛克沙胂胁迫影响下出现明显降低,且存在一定的剂量依赖效应。经主成分分析,第 1 周,洛克沙胂低浓度组(w=15 mg·kg^-1) 土壤微生物群落结构和对照组差异不明显,第 2、3、5、8 周,各组土壤微生物群落结构多样性的类型差异显著,其中高浓度组(w=150 mg·kg^-1) 与对照组差异最大。结果表明,洛克沙胂可致土壤微生物群落结构多样性改变,暴露浓度越高其作用越强。同时,洛克沙胂对土壤微生物群落结构多样性的影响还表现出时间差异,在暴露胁迫的后期(第 5、8 周),洛克沙胂的影响逐步减弱,可能与洛克沙胂在土壤中发生化学结构改变和降解有关。
- 洛克沙胂 /
- 土壤微生物量碳 /
- 群落结构 /
- 磷脂脂肪酸
Abstract: By using phospholipid fatty acid (PLFA) approach, the structural characteristics of soil microbial community caused by residue of roxarsone was studied. The results showed that the total PLFA in soil in treatment was significantly decreased after 1 week exposure in a dose-dependent manner, except in the lower roxarsone treatment (i.e., w=15 mg·kg^-1). The difference between control and treatments appeared to be larger with increase of the roxarsone concentration. It was concluded that the structure of soil microorganisms have been affected by the residue of roxarsone in soil and the effectiveness could be enhanced with exposure time and concentrations. It was propoed that the time dependent variation in structure of soil microorganisms could be caused by the chemical conversion and degradation of roxarsone in soil.
- roxarsone /
- soil microbial community /
- phospholipid fatty acid /

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张帆, 白玲, 郭瑞子, 马驿, 孙永学. 洛克沙胂暴露胁迫对土壤微生物群落结构特征的影响[J]. 生态毒理学报, 2014, 9(3): 475-482. doi: 10.7524/AJE.1673-5897.20131125001

引用本文:

张帆, 白玲, 郭瑞子, 马驿, 孙永学. 洛克沙胂暴露胁迫对土壤微生物群落结构特征的影响[J]. 生态毒理学报, 2014, 9(3): 475-482. doi: 10.7524/AJE.1673-5897.20131125001

Citation:

洛克沙胂暴露胁迫对土壤微生物群落结构特征的影响

作者简介: 张帆(1989-),女,硕士研究生,研究方向为兽医药理学与毒理学,E-mail:1105407779@qq.com
1. 国家兽药安全评价(环境评估)实验室, 华南农业大学, 广州 510642;

2. 广东海洋大学农学院动物医学系, 湛江 524088

收稿日期: 2013-11-25

基金项目:

国家自然科学基金项目(31172368)

广东省自然科学基金项目(S2011010001090)

关键词:

摘要: 采用磷脂脂肪酸(phospholipid fatty acid, PLFA)方法,分析了洛克沙胂残留对土壤微生物群落结构的影响特征。结果表明,在整个采样周期中,每克土壤总 PLFA 含量在洛克沙胂胁迫影响下出现明显降低,且存在一定的剂量依赖效应。经主成分分析,第 1 周,洛克沙胂低浓度组(w=15 mg·kg^-1) 土壤微生物群落结构和对照组差异不明显,第 2、3、5、8 周,各组土壤微生物群落结构多样性的类型差异显著,其中高浓度组(w=150 mg·kg^-1) 与对照组差异最大。结果表明,洛克沙胂可致土壤微生物群落结构多样性改变,暴露浓度越高其作用越强。同时,洛克沙胂对土壤微生物群落结构多样性的影响还表现出时间差异,在暴露胁迫的后期(第 5、8 周),洛克沙胂的影响逐步减弱,可能与洛克沙胂在土壤中发生化学结构改变和降解有关。

English Abstract

Effects of Roxarsone Residue on the Microbial Community Structure in Soil

1. National Laboratory of Safety Evaluation(Environmental Assessment) of Veterinary Drugs, South China Agricultural University, Guangzhou 510642, China;
2. Department of Veterinary Medicine of Agricultural College, Guangdong Ocean University, Zhanjiang 524088, China

Received Date: 2013-11-25

Fund Project:

Keywords:

Abstract: By using phospholipid fatty acid (PLFA) approach, the structural characteristics of soil microbial community caused by residue of roxarsone was studied. The results showed that the total PLFA in soil in treatment was significantly decreased after 1 week exposure in a dose-dependent manner, except in the lower roxarsone treatment (i.e., w=15 mg·kg^-1). The difference between control and treatments appeared to be larger with increase of the roxarsone concentration. It was concluded that the structure of soil microorganisms have been affected by the residue of roxarsone in soil and the effectiveness could be enhanced with exposure time and concentrations. It was propoed that the time dependent variation in structure of soil microorganisms could be caused by the chemical conversion and degradation of roxarsone in soil.