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Accumulation and bio-oxidation of arsenite mediated by thermoacidophilic Cyanidiales: innate potential biomaterials toward arsenic remediation.
Cho, Yen-Lin; Tzou, Yu-Min; Assakinah, Afifah; Than, Nhu Anh Thi; Yoon, Hwan Su; Park, Seung In; Wang, Chun-Chieh; Lee, Yao-Chang; Hsu, Liang-Ching; Huang, Pei-Yu; Liu, Shao-Lun; Liu, Yu-Ting.
Afiliación
  • Cho YL; Department of Soil and Environmental Sciences, National Chung Hsing University, Taichung 40227, Taiwan (R.O.C.); Department of Environmental Science and Engineering, Tunghai University, Taichung 407224, Taiwan (R.O.C.).
  • Tzou YM; Department of Soil and Environmental Sciences, National Chung Hsing University, Taichung 40227, Taiwan (R.O.C.); Innovation and Development Center of Sustainable Agriculture, National Chung Hsing University, Taichung 40227, Taiwan (R.O.C.).
  • Assakinah A; Department of Soil and Environmental Sciences, National Chung Hsing University, Taichung 40227, Taiwan (R.O.C.).
  • Than NAT; Department of Soil and Environmental Sciences, National Chung Hsing University, Taichung 40227, Taiwan (R.O.C.).
  • Yoon HS; Department of Biological Sciences, Sungkyunkwan University, Suwon 16419, South Korea.
  • Park SI; Department of Biological Sciences, Sungkyunkwan University, Suwon 16419, South Korea.
  • Wang CC; National Synchrotron Radiation Research Center, Hsinchu 30076, Taiwan (R.O.C.).
  • Lee YC; National Synchrotron Radiation Research Center, Hsinchu 30076, Taiwan (R.O.C.).
  • Hsu LC; Department of Soil and Environmental Sciences, National Chung Hsing University, Taichung 40227, Taiwan (R.O.C.).
  • Huang PY; National Synchrotron Radiation Research Center, Hsinchu 30076, Taiwan (R.O.C.).
  • Liu SL; Department of Life Science, Tunghai University, Taichung 40704, Taiwan (R.O.C.).
  • Liu YT; Department of Soil and Environmental Sciences, National Chung Hsing University, Taichung 40227, Taiwan (R.O.C.); Innovation and Development Center of Sustainable Agriculture, National Chung Hsing University, Taichung 40227, Taiwan (R.O.C.). Electronic address: yliu@nchu.edu.tw.
Bioresour Technol ; 406: 130912, 2024 Aug.
Article en En | MEDLINE | ID: mdl-38821424
ABSTRACT
Addressing geogenic and anthropogenic arsenic (As) pollution is critical for environmental health. This study explored arsenite [As(III)] removal using Cyanidiales, particularly Cyanidium caldarium (Cc) and Galdieria partita (Gp), under acidic to neutral pH, and determined As(III) detoxification mechanisms in relation to As speciation and protein secondary structure in Cyanidiales. Regarding As(III) sorption amounts, Cc outperformed Gp, reaching 83.2 mg g-1 of removal at pH 5.0. Wherein, 23.5 % of sorbed As on Cc presented as arsenate [As(V)] complexation with polysaccharides, alongside other predominant species including As(III)-cysteine (41.2 %) and As(III)-polysaccharides (35.3 %) complexes. This suggested that As(III) was directly transported into cells, rather than As(V). Coupled with the formation of As(III)-cysteine complexes within cells, these mechanisms may be key to efficiently accumulating As(III) in Cyanidiales during the 6-h incubation. These results highlight the potential of Cyanidiales for sustainable As(III) remediation and provide new insights into managing As(III) toxicity.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Oxidación-Reducción / Biodegradación Ambiental / Arsenitos Idioma: En Revista: Bioresour Technol Asunto de la revista: ENGENHARIA BIOMEDICA Año: 2024 Tipo del documento: Article Pais de publicación: Reino Unido
Texto completo
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Oxidación-Reducción / Biodegradación Ambiental / Arsenitos Idioma: En Revista: Bioresour Technol Asunto de la revista: ENGENHARIA BIOMEDICA Año: 2024 Tipo del documento: Article Pais de publicación: Reino Unido