|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | Polybrominated diphenyl ethers in chicken tissues and eggs from an electronic waste recycling area in southeast China显示文摘The levels and distributions of polybrominated diphenyl ethers(PBDEs) in chicken tissues from an electronic waste(e-waste) recycling area in southeast China were investigated.Human dietary intake by local residents via chicken muscle and eggs was estimated.The mean PBDEs concentrations in tissues ranged from 15.2 to 3138.1 ng/g lipid weight(lw) and in egg the concentration was 563.5 ng/g lw.The results showed that the level of total PBDEs(ΣPBDEs) in the chicken tissue was 2-3 orders of magnitude higher than those reported in the literature.The large difference of ΣPBDEs concentrations between tissues confirmed that the distribution of PBDEs in tissues depend on tissue-specificity rather than the 'lipid-compartment'.BDE-209 was the predominant congener(82.5%-94.7% of ΣPBDEs) in all chicken tissues except in brain(34.7% of ΣPBDEs),which indicated that deca-BDE(the major commercial PBDE formulation comprising 65%-70% of total production) was major pollution source in this area and could be bioaccumulated in terrestrial animals.The dietary PBDEs intake of the local residents from chicken muscle and egg,assuming only local bred chickens and eggs were consumed,ranged from 2.2 to 22.5 ng/(day·kg body weight(bw)) with a mean value of 13.5 ng/(day·kg bw),which was one order of magnitude higher than the value reported in previous studies for consumption of all foodstuffs. | Xiaofei Qin Zhanfen Qin Yan Li Yaxian Zhao Xijuan Xia Shishuai Yan Mi Tian Xingru Zhao Xiaobai Xu Yongjian Yang | 2011 | Journal of Environmental Sciences2011，23，1： | 8 |
| 2 | Ecotoxicological effects of mixed pollutants resulted from e-wastes recycling and bioaccumulation of polybrominated diphenyl ethers in Chinese loach(Misgurnus anguillicaudatus)显示文摘To understand potential ecotoxicological effects of electrical and electronic equipment waste (e-waste) recycling and polybrominated diphenyl ethers (PBDEs) bioaccumulation in loaches, a semi-field experiment using Chinese loach (Misgurnus anguillicaudatus) as experimental fish was performed. Larval loaches were kept in net-cage for three months in an e-wastes recycling site and a reference site in Southeastern China. There was significant difference of the survival rate between the loaches from the e-wastes recycling site (27%, 19/70) and from reference site (70%, 49/70). Histopathological responses were also found in all the livers examined in loaches from the e-wastes recycling site. These results showed that mixed pollutants resulted from e-wastes recycling led to ecotoxicological effects on loaches. The bioaccumulation of polybrominated diphenyl ethers (PBDEs), the main pollutants in e-waste, in loaches was also studied, the mean concentration of total PBDEs in sediment was 6726.17 ng/g wet weight and in water samples was 4.08 ng/L (dissolved phase). BDE 209 was the dominant congener in sediment and with relatively high concentration in water. Relatively low concentration of BDE 209 (less than 0.01% of total PBDEs) and high concentration of BDE47 (up to 39.34% of total PBDEs) were detected in loaches. | QIN Xiaofei XIA Xijuan LI Yan ZHAO Yaxian YANG Zhongzhi FU Shan TI-AN Mi ZHAO Xingru QIN Zhanfen XU Xiaobai YANG Yongjian | 2009 | Journal of Environmental Sciences2009，21，12： | 6 |
| 3 | Polybrominated diphenyl ether (PBDE) in blood from children (age 9–12) in Taizhou, China显示文摘Polybrominated diphenyl ethers (PBDEs) as ubiquitous persistent organic pollutants have attracted much attention in recent years. Exposure to PBDEs could induce a high health risk for children. The aim of this study was to investigate the PBDEs exposure of children (9–12 years) from Taizhou, China. Fifty-eight blood samples were collected in one school in a mountainous area in Taizhou. The concentrations of ∑9PBDEs (sum of BDE-28, -47, -99, -100, -153, -154, -183, -197 and -209) ranged from 2.66 to 33.9 ng/g lipid wet (lw) with a median of 7.22 ng/g lw. These concentrations were lower than those of children in USA, but close to European and Asian general population levels. The results showed that children in Taizhou countryside were at a low level of PBDEs exposure. The predominant congener was BDE-209, followed by BDE-28, -47, -197 and -153. High abundance of BDE-209 was consistent with the pollution background of PBDEs in China characterized by high brominated congeners as main pollutants. | Xiaoyou Zhang Xianli Ruan Minchan Yan Yaxian Zhao Wuji Wei Zhanfen Qin Yongjian Yang Haiming Xu Yan Li | 2011 | Journal of Environmental Sciences2011，23，7： | 5 |
| 4 | Thyroid disruption by technical decabromodiphenyl ether (DE-83R) at low concentrations in Xenopus laevis显示文摘Decabromodiphenyl ether (decaBDE),as a flame retardant,is widely produced and used.To study the thyroid disruption by technical decaBDE at low concentrations,Xenopus laevis tadpoles were exposed to technical decaBDE mixture DE-83R (1-1000 ng/L) in water from stage 46/47 (free swimming larvae,system of Nieuwkoop and Faber) to stage 62.DE-83R at concentration of 1000 ng/L significantly delayed the time to metamorphosis (presented by forelimb emergence,FLE).Histological examination showed that DE83R at all tested concentrations caused histological alterations-multilayer follicular epithelial cell and markedly increased follicle size accompanied by partial colloid depletion and increase in the peripheral colloid vacuolation,in thyroid glands.All tested concentrations of DE-83R also induced a down-regulation of thyroid receptor mRNA expression.These results demonstrated that technical decaBDE disrupted the thyroid system in X.laevis tadpoles.Analysis of polybrominated diphenyl ethers (PBDEs) (sum of 39 congeners) in X.laevis indicated that mean concentrations of total PBDEs in X.laevis exposed to 1,10,100,1000 ng/L were 11.0,128.1,412.1,1400.2 ng/g wet weight,respectively.Considering that PBDEs burden of X.laevis tadpoles was close to PBDEs levels in amphibians as reported in previous studies,our study has raised new concerns for thyroid disruption in amphibians of technical decaBDE at environmentally relevant concentrations. | Xiaofei Qin Xijuan Xia Zhongzhi Yang Shishuai Yan Yaxian Zhao Rongguo Wei Yan Li Mi Tian Xingru Zhao Zhanfen Qin Xiaobai Xu | 2010 | Journal of Environmental Sciences2010，22，5： | 2 |
| 5 | Duplication and transcriptional divergence of three Kunitz protease inhibitor genes that modulate insect and pathogen defenses in tea plant(Camellia sinensis)显示文摘Kunitz protease inhibitors(KPIs)are ubiquitous in plants and act as crucial compounds in defense responses against insect attack and pathogen infection.However,the influence of gene duplication on the postdivergence of the CsKPI genes involved in biotic stresses in tea plant is not well known.Here,we identified three CsKPI genes from tea plant(Camellia sinensis)and characterized their expression and evolutionary patterns among plant species.We found that CsKPI1,CsKPI2,and CsKPI3 diverged from their common ancestor 72.94 million years ago(MYA),and the tandem duplication of CsKPI2 and CsKPI3 occurred 26.78 MYA.An in vitro protein assay showed that the three CsKPI proteins were functional and inhibited the production of p-nitroanilide(PNA)from an artificial substrate.The three CsKPI-GFP fusion proteins localized to the cytoplasm.We showed that salicylic acid(SA)and transcripts of CsKPI2 and CsKPI3 significantly accumulated after infection with Glomerella cingulata.The application of exogenous SA stimulated the high expression of both CsKPI2 and CsKPI3 by activating cis-elements within their promoters.Under Ectropis oblique attack,CsKPI1 expression and jasmonic acid(JA)levels were more abundant in both insect-damaged leaf tissues and undamaged neighboring leaves.The application of jasmonic acid methyl ester elicited high expression levels of CsKPI1,suggesting that CsKPI1 accumulation requires JA production in tea plant.The overall findings suggest that the transcriptional divergence of KPI genes after duplication led to the specialized role of CsKPI1 in the physiological response to insect stress;the functional conservation between CsKPI2 and CsKPI3 confers resistance to pathogen infection in tea plant. | Junyan Zhu Yaxian He Xiaomei Yan Lu Liu Rui Guo Xiaobo Xia Daojie Cheng Xiaozeng Mi Lidiia Samarina Shenrui Liu Enhua Xia Chaoling Wei | 2019 | Horticulture Research2019，6，1： | 2 |
| 6 | Chloride ion critical content in reinforced concrete显示文摘 | Yan Li Yaxian Zhu Xichang Zhu Yan Ge Stirnemann Laura | 2007 | Journal of Wuhan University of Technology - Mater Sci Ed2007，，4： | 1 |
| 7 | Isolation and characterization of a novel linear-plasmid phage from the sediment of the Mariana Trench显示文摘Dear Editor,Temperate bacteriophages are widely distributed in bacteria isolated from different natural environments(Howard-Varona et al.,2017).The phages normally lead to lysogenic infection and merge their genetic components into the bacterial chromosome.Among the temperate phages,linear plasmid phages are atypical because of their capability to reside in host cells as linear ds DNA with covalently closed ends,rather than being integrated in host genomes in the form of prophages(Ravin et al.,2000;Ravin,2011). | Yali Hao Siyuan Wang Mujie Zhang Qingxue Tang Canxing Meng Liping Wang Qilian Fan Yaxian Yan Xiang Xiao Huahua Jian | 2022 | Virologica Sinica2022，37，2： | 0 |
您所在的机构暂未开通此部分的功能，请联系管理员