苯并(a)芘对大弹涂鱼肝细胞超微结构的影响

应用生态学报 ›› 2003, Vol. ›› Issue (10): 1780-1782.

苯并(a)芘对大弹涂鱼肝细胞超微结构的影响

冯涛¹, 魏凤琴², 欧阳高亮¹, 洪万树¹

1. 厦门大学, 厦门 361005;
2. 福建省潭县白青乡水产实验站, 平潭 350400

收稿日期:2000-07-25 修回日期:2001-10-29
通讯作者: 冯涛,女,1969年生,博士,主要从事环境及海洋生态毒理学方面的研究.
基金资助:
国家自然科学基金资助项目(49876029)

Effects of BaP exposure on ultrastructures of hepatic cells of Boleophthalmus pectinirostris

FENG Tao¹, ZHENG Weiyun², OUYANG Gaoliang¹, HONG Wanshu ¹

Xiamen University, Xiamen 361005, China

Received:2000-07-25 Revised:2001-10-29

摘要/Abstract

摘要： 在实验生态条件下,研究不同浓度苯并(a)芘(BaP)暴露下大弹涂鱼肝脏细胞超微结构的变化.结果表明,暴露于低浓度(0.5mg·L^-1)BaP7d,大弹涂鱼肝脏细胞内的细胞器受到不同程度的损伤,其中线粒体和内质网是受BaP暴露影响最明显的细胞器,细胞核也受到不同程度的影响,细胞质中脂滴也增加;而暴露于高浓度(5mg·L^-1)BaP₂h,不仅是线粒体和内质网,几乎所有细胞器都受到严重影响,细胞器严重退化,细胞结构遭到严重破坏.研究结果证实,BaP可对大弹涂鱼肝细胞内多种细胞器造成损伤,并且BaP浓度越高,损伤程度越严重.

关键词: 苯并(a)芘, 大弹涂鱼, 肝脏, 超微结构

Abstract: The changes of ultrastructures of hepatic cells of Boleophthalmus pectinirostris were investigated after the fish were exposed under benzo (a) pyrene in different concentrations under experimental condition.The results showed that the organelles in hepatic cells of B.pectinirostris were damaged to different extents after the fish was exposed under lower concentration of BaP (0.5 mg稬^-1) for up to 7 d, in which, mitochondria and endo-plasmic reticulum were the chief organelles affected by BaP exposure.While the fish was exposed under higher concentration of BaP (5 mg稬^-1) for 2 h, almost all of the organelles including mitochondria and endoplasmic reticulum in hepatic cells of B.pectinirostr were affected by BaP exposure.The structures of liver cells were seriously damaged.It was demonstrated that BaP could produce multiorganalle lesions in hepatic cells of B.pectinirostris, and the severity extent of such lesions was dependent on the concentration level of BaP.

Key words: Benzo(a)pyrene, Boleophthalmus pectinirostris, Liver, Ultrastructure

中图分类号:

X171.5

冯涛, 魏凤琴, 欧阳高亮, 洪万树. 苯并(a)芘对大弹涂鱼肝细胞超微结构的影响[J]. 应用生态学报, 2003, (10): 1780-1782.

FENG Tao, ZHENG Weiyun, OUYANG Gaoliang, HONG Wanshu . Effects of BaP exposure on ultrastructures of hepatic cells of Boleophthalmus pectinirostris[J]. Chinese Journal of Applied Ecology, 2003, (10): 1780-1782.

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