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Primary amino acids affect the distribution of methylmercury rather than inorganic mercury among tissues of two farmed-raised fish species
Yi Man;  Runsheng Yin;  Kai Cai;  Chongyang Qin;  Jianxu Wang;  Haiyu Yan;  Miling Li
2019
发表期刊Chemosphere
卷号225页码:320-328
摘要

The distributions of primary amino acids, MeHg and IHg in body tissues of two commonly farm-raised fish species (common carp: Cyprinus carpio; grass carp: Ctenopharyngodon idellus) in Guizhou Province, SW China, were investigated to understand the effects of primary amino acids on MeHg and IHg metabolism in farm-raised fish. The primary amino acids were classified into four groups: (1) essential and polar amino acids; (2) essential and non-polar amino acids; (3) non-essential and polar amino acids; and (4) non-essential and non-polar amino acids. For both fish species, groups (1, 2 and 3) were enriched in muscle and kidney, whereas group (4) was enriched in scale. The two fish species showed low MeHg concentrations (grass carp: 0.5e3.9 ng/g; common carp:1.0e7.4 ng/g) and low MeHg proportions (grass carp: 2e45%; common carp: 6e37%) in their tissues, which are mainly due to the simple food web structures and the fast growth of the farm-raised fish. Positive correlations (r ¼ 0.342 to 0.472; p < 0.01; n ¼ 78) were observed between MeHg and several primary amino acids (cysteine, threonine, phenylalanine, leucine, valine, glutamate serine and tyrosine) in fish tissues, which may be driven by the formation of MeHg-Cys complexes within fish body. However, no significant correlations were observed between IHg and any primary amino acids, indicating the metabolic processes of IHg and MeHg are

关键词Mercury methy lmercury primary Amino Acid cysteine fish
收录类别SCI
语种英语
文献类型期刊论文
条目标识符http://ir.gyig.ac.cn/handle/42920512-1/10876
专题矿床地球化学国家重点实验室
作者单位1.State Key Laboratory of Ore Deposit Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang, Guizhou Province, China
2.State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang, Guizhou Province, China
3.University of Chinese Academic of Sciences, Beijing, China
4.Guizhou Academy of Tobacco Science, Guiyang, Guizhou Province, China
5.Department of Earth, Ocean and Atmospheric Sciences, University of British Columbia, Vancouver, British Columbia, Canada
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GB/T 7714
Yi Man;Runsheng Yin;Kai Cai;Chongyang Qin;Jianxu Wang;Haiyu Yan;Miling Li. Primary amino acids affect the distribution of methylmercury rather than inorganic mercury among tissues of two farmed-raised fish species[J]. Chemosphere,2019,225:320-328.
APA Yi Man;Runsheng Yin;Kai Cai;Chongyang Qin;Jianxu Wang;Haiyu Yan;Miling Li.(2019).Primary amino acids affect the distribution of methylmercury rather than inorganic mercury among tissues of two farmed-raised fish species.Chemosphere,225,320-328.
MLA Yi Man;Runsheng Yin;Kai Cai;Chongyang Qin;Jianxu Wang;Haiyu Yan;Miling Li."Primary amino acids affect the distribution of methylmercury rather than inorganic mercury among tissues of two farmed-raised fish species".Chemosphere 225(2019):320-328.
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