刺参体内铝的富集和消除规律研究
目的 研究铝在刺参体内的富集和消除规律。方法 选取体重为(50±10) g的刺参暴露于铝浓度分别为50、150、300 μg/L的海水中进行富集实验, 分别在第0、1、3、5、7、10、15、21、30 d取样检测分析。富集实验结束后, 放入自然海水中开始消除实验, 分别在第1、3、7、14、21、35、45 d取样检测分析。结果 3个实验组刺参体壁中铝的蓄积量范围为10.0~18.2 mg/kg、富集系数范围为53.2~160、最终消除率范围为67.0%~78.6%; 纵肌中铝的蓄积量范围为32.2~60.0 mg/kg、富集系数范围为189~582、最终消除率范围为84.7%~88.2%; 呼吸树中铝的蓄积量范围为69.2~120 mg/kg、富集系数范围为365~1143、最终消除率范围为77.9%~86.4%; 消化道中铝的蓄积量范围为78.7~275 mg/kg、富集系数范围为865~1275、最终消除率范围为74.8%~86.1%。结论 刺参各组织铝蓄积量、富集系数随暴露时间的延长而增大, 各组织对铝蓄积量和富集系数大小顺序均为消化道＞呼吸树＞纵肌＞体壁, 消化道和呼吸树是刺参富集铝的主要器官。刺参纵肌、呼吸树和消化道对铝的蓄积量、富集系数均随暴露浓度的增大而增大, 体壁对铝的蓄积量也随暴露浓度的增大而增大, 但体壁对铝的富集系数随暴露浓度的增大而减小。消除实验期间, 刺参体壁、纵肌、呼吸树和消化道中铝残留量随消除时间的延长而降低, 呈现前期消除较快, 后期逐渐平稳的趋势; 消除实验结束, 3个浓度组刺参中铝的最终残留量与对照组相差不大。
Objective To investigate the accumulation and elimination of aluminum in Apostichopus japonicus. Methods The Apostichopus japonicus with body weight of (50±10) g were exposed to seawater with aluminum concentration of 50、150 and 300 μg/L, and different tissues of Apostichopus japonicus were collected at 0, 1, 3, 5, 7, 10, 15, 21, 30 d. After the accumulation experiment, the Apostichopus japonicus were put into the natural seawater to start the elimination experiment, and the samples were collected for analysis at 1, 3, 7, 14, 21, 35, 45 d. Results The concentration of aluminum in body wall ranged from 10.0 mg/kg to 18.2 mg/kg, the bio-concentration factor (BCF) ranged from 53.2 to 160, and the clearance rate (CL) ranged from 67.0% to 78.6%. The concentration of aluminum in longitudinal muscle ranged from 32.2 to 60.0 mg/kg, the BCF ranged from 189 to 582, and the CL ranged from 84.7% to 88.2%. The concentration of aluminum in respiratory tree ranged from 69.2 to 120 mg/kg, the BCF ranged from 365 to 1143, and the CL ranged from 77.9% to 86.4%. The concentration of aluminum in alimentary canal ranged from 78.7 to 275 mg/kg, the BCF ranged from 865 to 1275, and the CL ranged from 74.8 %to 86.1%. Conclusion The concentration and BCF of aluminum in each tissue of Apostichopus japonicus increased with the prolongation of exposure time. The order of the aluminum accumulation amount and BCF in each tissue is alimentary canal＞respiratory tree＞longitudinal muscle＞body wall, which shows that the respiratory tree and alimentary canal is the main enriched tissues in Apostichopus japonicus. With the increase of concentration of aluminum in seawater, the concentration and BCF in different tissues show different trends. The concentration and BCF of aluminum in the longitudinal muscle, respiratory tree and alimentary canal of Apostichopus japonicus increase with the increase of the exposure concentration. By contrast, concentration of aluminum on the body wall increase with the increase of the exposure concentration as well, but the BCF decrease. Meanwhile, the concentration of aluminum in Apostichopus japonicus decreases during the elimination experiment, which emerges a trend of rapid elimination rate in the early stage and gradual elimination rate in the later stage. At the end of the elimination experiment, the concentration of aluminum in the test groups of Apostichopus japonicus are close to the control group.
标题：刺参体内铝的富集和消除规律研究
英文标题：Study on accumulation and elimination of aluminum in Apostichopus japonicus
作者：
宫向红 山东省海洋资源与环境研究院
韩典峰 山东省海洋资源与环境研究院
姜芳 山东省海洋资源与环境研究院
崔艳梅 山东省海洋资源与环境研究院
刘小静 山东省海洋资源与环境研究院
李焕军 山东省海洋资源与环境研究院
田秀慧 山东省海洋资源与环境研究院
徐英江 山东省海洋资源与环境研究院
中文关键词:刺参,铝,富集,消除,
英文关键词:Apostichopus japonicus,aluminum,accumulation,elimination,
发表日期：2019-02-14
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