生态学报2009，Vol.29Issue(7)：3605-3612,8.
内分泌干扰物氰戊菊酯和有机锡对萼花臂尾轮虫生殖的影响
Effect of endocrine disruptors fenvalerate and TBTC on reproduction of rotifer Brachionus calyciflorus
摘要
Abstract
Endocrine disruptors (EDs) are a structurally diverse group of compounds that may adversely affect the health of humans, wildlife and fisheries, or their progeny by interaction with the endocrine system. Many EDs have been detected in aquatic environments, many of which are capable of disrupting endocrine functions of a variety of aquatic invertebrates. In the present study, the estrogenic compound Fenvalerate and androgenic compound TBTC were screened for their effect on the batch carrying eggs every parental rotifer (P),total numbers of eggs, offspring production, and mictic female production of the freshwater rotifer Brachionus calyciflorus. Treatment with Fenvalerate at concentrations (except 3.2μg/L) significantly increased the frequency of carrying 3 eggs (p<0.05).Treatments with Fenvalerate at concentrations of 3.2μg/L to 2000μg/L significantly increased the total number of eggs production compared to controls (p<0.05). Treatment with TBTC at 0.0016,0.04, 0.2 and 1μg/L resulted in a significantly higher frequency of females carrying 3 and 4 eggs compared to control (p<0.05), but the frequency of carrying 1 egg was lower than control. The total number of eggs and offspring were all significantly lower than control (0.0016μg/L excluded) (p<0.05). Moreover, the ratios of mictic female (MF%) of parents and the first generation (F1) were also affected by Fenvalerate and TBTC. MF% of parents and F1 was significantly lower than control only in the two lowest concentrations of Fenvalerate at 0.64μg/L and 3.2μg/L (p<0.01), but there was no difference between treatments and control in higher concentrations, and no effect on MF/AF (mictic females/amictic females) of the F1 as well. The concentrations of TBTC only over 5μg/L significantly affected the MF% of parental compared to control (p<0.01), but MF% of F1 was obviously affected at all concentrations except 0.2μg/L. The MF/AF of parents and F1 were quite similar. TBTC had a negative effect on total number of eggs and offspring, whereas Fenvalerate increased them. Consequently, we can conclude that Fenvalerate and TBTC significantly affect the reproduction of rotifers through mechanisms that are not well understood.关键词
氰戊菊酯/三丁基氯化锡/萼花臂尾轮虫/单次携卵量/混交率Key words
fenvalerate/TBTC/Brachionus calyciflorus/batch carrying eggs/mictic female production分类
生物科学引用本文复制引用
朱玮阁,郭瑞昕,杨家新..内分泌干扰物氰戊菊酯和有机锡对萼花臂尾轮虫生殖的影响[J].生态学报,2009,29(7):3605-3612,8.基金项目
国家自然科学基金赞助项目(30570260) （30570260）
江苏省自然科学基金项目(BK2007225) （BK2007225）
