Bioaccumulation, distribution and elimination of lindane in Eisenia foetida: The aging effect.
Bioaccumulation, distribution and elimination of lindane in Eisenia foetida: The aging effect.
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赤爱胜蚓中林丹的生物累积、分布和消除：老化效应。
DOI：
10.1016/j.chemosphere.2017.09.138
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发表时间：
2018
期刊：
影响因子：
8.8
通讯作者：
Sheng G Daniel
中科院分区：
文献类型：
--
作者：
Miao Juanjuan;Chen Xiaoling;Xu Ting;Yin Daqiang;Hu Xialin;Sheng G Daniel
土壤老化会影响农药的化学形态，从而影响生物体的吸收途径。到目前为止，关于吸收途径对农药在生物体中的分布和消除的可能影响的研究还很有限。以4.5 mg kg− 1的林丹处理赤子爱氏蚯蚓0、30和180 d，分析了林丹在蚯蚓体内的积累、分布和消除规律。结果表明，Tenax提取6 h的组分与蚯蚓体内积累的Lintoxin具有良好的线性相关性。随着老化时间的延长，蚯蚓体内对亚麻酸的生物积累逐渐减少，且更容易达到积累平衡。林丹分布在整个群落中，亚群落水平林丹含量的比例和各组分的质量分布在0 d和180 d龄组相似。前肠中积累的木质素含量最高（20%），相对于其较低的质量分布比例（10%）。蚯蚓体内对磷的清除率随老化时间的延长而降低。结论：6 h Tenax浸提液可用于评价抗衰老搽剂的生物利用度。尽管土壤老化降低了林虫的生物有效性，但通过食物途径进入土壤的结合态林虫比游离态林虫需要更长的时间才能从生物体中净化出来，这意味着结合态农药残留具有潜在的生态风险。
Soil aging will influence the chemical speciation of pesticides, thus affecting the uptake route to be bioavailable to the organism. So far, studies on the possible effects of the uptake route on the distribution and elimination of pesticides in the organism that also considers effects of aging are limited. In our study,Eisenia fetidawas exposed to 4.5 mg kg−1lindane aging for 0, 30 and 180 d, and the accumulation, distribution and elimination of lindane in the earthworms were analyzed. The results showed that the 6 h Tenax-extracted fraction exhibited a good linear correlation with the lindane accumulated in the earthworms. With aging time increasing, the bioaccumulation of lindane decreased and the accumulative balance was more easily reached in the earthworms. Lindane distributions were found in the whole earthworm and the proportions of lindane content at sub-organism level and the mass distribution of each fraction were similar for 0 d and 180 d aged groups. The foregut accumulated the highest content of lindane (20%) relative to its low mass distribution proportion (10%). The elimination rate of lindane in the earthworms decreased with aging time extending. Our conclusion was that the 6 h Tenax extraction could be used to assess the bioavailability of aging lindane. Although soil aging decreased the bioavailability of lindane, the soil-bound lindane entered the earthworm through dietary route would take longer to depurate from the organisms than free lindane, which implied the potential ecological risk of bound pesticide residues.
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DOI：
10.1007/s00244-009-9286-y
发表时间：
2009-02
影响因子：
4
作者：
Yajuan Shi;Yonglong Lu;Tieyu Wang;Guang Wang;W. Luo
通讯作者：
Yajuan Shi;Yonglong Lu;Tieyu Wang;Guang Wang;W. Luo
影响因子：
4.1
作者：
A. Belfroid;M. van den Berg;W. Seinen;J. Hermens;Kees van Gestel
通讯作者：
A. Belfroid;M. van den Berg;W. Seinen;J. Hermens;Kees van Gestel
DOI：
--
发表时间：
2013
期刊：
--
影响因子：
--
作者：
Klára Šmídová
通讯作者：
Klára Šmídová
影响因子：
5.7
作者：
A. Belfroid;D. Sijm;C. Gestel
通讯作者：
A. Belfroid;D. Sijm;C. Gestel
影响因子：
6.8
作者：
Luo Wang;Hongliang Jia;Xianjie Liu;Yeqing Sun;Meng Yang;Wenjun Hong;Hong Qi;Yi-Fan Li
通讯作者：
Luo Wang;Hongliang Jia;Xianjie Liu;Yeqing Sun;Meng Yang;Wenjun Hong;Hong Qi;Yi-Fan Li