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Bioconcentration of Inorganic and Methyl Mercury by Algae Revealed Using Dual-Mass Single-Cell ICP-MS with Double Isotope Tracers.
Tian, Xiangwei; Wang, Ying; Xu, Tao; Guo, Yingying; Bi, Yonghong; Liu, Yanqun; Liang, Yong; Cui, Wenbin; Liu, Yanwei; Hu, Ligang; Yin, Yongguang; Cai, Yong; Jiang, Guibin.
Afiliación
  • Tian X; Laboratory of Environmental Nanotechnology and Health Effect, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China.
  • Wang Y; State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China.
  • Xu T; University of Chinese Academy of Sciences (UCAS), Beijing 100049, China.
  • Guo Y; Institute of Environment and Health, Hangzhou Institute for Advanced Study, UCAS, Hangzhou 310024, China.
  • Bi Y; Institute of Environment and Health, Hangzhou Institute for Advanced Study, UCAS, Hangzhou 310024, China.
  • Liu Y; Laboratory of Environmental Nanotechnology and Health Effect, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China.
  • Liang Y; State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China.
  • Cui W; State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China.
  • Liu Y; School of Medicine, Jianghan University, Wuhan 430056, China.
  • Hu L; Hubei Key Laboratory of Environmental and Health Effects of Persistent Toxic Substances, School of Environment and Health, Jianghan University, Wuhan 430056, China.
  • Yin Y; Hubei Key Laboratory of Environmental and Health Effects of Persistent Toxic Substances, School of Environment and Health, Jianghan University, Wuhan 430056, China.
  • Cai Y; R&D Center, Shandong Yingsheng Biotechnology Co., Ltd., Beijing 100088, China.
  • Jiang G; Laboratory of Environmental Nanotechnology and Health Effect, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China.
Environ Sci Technol ; 58(18): 7860-7869, 2024 May 07.
Article en En | MEDLINE | ID: mdl-38647522
ABSTRACT
Algae are an entry point for mercury (Hg) into the food web. Bioconcentration of Hg by algae is crucial for its biogeochemical cycling and environmental risk. Herein, considering the cell heterogeneity, we investigated the bioconcentration of coexisting isotope-labeled inorganic (199IHg) and methyl Hg (201MeHg) by six typical freshwater and marine algae using dual-mass single-cell inductively coupled plasma mass spectrometry (scICP-MS). First, a universal pretreatment procedure for the scICP-MS analysis of algae was developed. Using the proposed method, the intra- and interspecies heterogeneities and the kinetics of Hg bioconcentration by algae were revealed at the single-cell level. The heterogeneity in the cellular Hg contents is largely related to cell size. The bioconcentration process reached a dynamic equilibrium involving influx/adsorption and efflux/desorption within hours. Algal density is a key factor affecting the distribution of Hg between algae and ambient water. Cellular Hg contents were negatively correlated with algal density, whereas the volume concentration factors almost remained constant. Accordingly, we developed a model based on single-cell analysis that well describes the density-driven effects of Hg bioconcentration by algae. From a novel single-cell perspective, the findings improve our understanding of algal bioconcentration governed by various biological and environmental factors.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Mercurio Idioma: En Revista: Environ Sci Technol Año: 2024 Tipo del documento: Article País de afiliación: China Pais de publicación: Estados Unidos
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
Buscar en Google

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Mercurio Idioma: En Revista: Environ Sci Technol Año: 2024 Tipo del documento: Article País de afiliación: China Pais de publicación: Estados Unidos