IOCAS-IR  > 海洋地质与环境重点实验室
Biomineralization of Middle Rare Earth Element Samarium in Yeast and Bacteria Systems
Jiang, Mingyu1,2,3; Ohnuki, Toshihiko3; Utsunomiya, Satoshi4
2018
Source PublicationGEOMICROBIOLOGY JOURNAL
ISSN0149-0451
Volume35Issue:5Pages:375-384
Corresponding AuthorJiang, Mingyu(myjiang@qdio.ac.cn)
AbstractMicroorganisms play an important role in the mineralization of heavy metals in different environments. Previous studies have reported the phosphate mineralization of light (Ce) and heavy (Yb) rare earth elements with yeast. However, little is known about differences in the biomineralization process of middle rare earth elements (including Sm, Eu, Gd, Tb and Dy) by yeast and bacteria. We carried out a series of experiments to compare the sorption process of Sm by Saccharomyces cerevisiae (yeast), Pseudomonas fluorescens (gram-negative bacteria) and Bacillus subtilis (gram-positive bacteria) in initial pH 3, 4 and 5 solutions. The concentrations of Sm in exposure solutions decreased as a function of exposure time in all three systems, which revealed the accumulation of Sm by cells. In both yeast and bacteria systems, Sm(III) was mineralized to monazite(Sm) phase particles on cell surfaces at 5 days of exposure after a short-term adsorption process. In these three systems, nano-sized Sm phosphate formed more quickly on cell surfaces with higher pH exposure solutions. The formation of precipitation on bacterial cell surfaces was faster than in yeast. There were no significant differences in the sorption process of Sm between the two bacteria Pseudomonas fluorescens and Bacillus subtilis.
KeywordBiomineralization comparison experiment rare earth elements sorption process
DOI10.1080/01490451.2017.1377320
Indexed BySCI
Language英语
Funding ProjectNational Natural Science Foundation of China[41406060] ; Chinese Academy of Sciences[XDA11030202]
WOS Research AreaEnvironmental Sciences & Ecology ; Geology
WOS SubjectEnvironmental Sciences ; Geosciences, Multidisciplinary
WOS IDWOS:000431374800003
PublisherTAYLOR & FRANCIS INC
Citation statistics
Document Type期刊论文
Identifierhttp://ir.qdio.ac.cn/handle/337002/158930
Collection海洋地质与环境重点实验室
Corresponding AuthorJiang, Mingyu
Affiliation1.Chinese Acad Sci, Inst Oceanol, Key Lab Marine Geol & Environm, Qingdao 266071, Peoples R China
2.Qingdao Natl Lab Marine Sci & Technol, Evaluat & Detect Technol Lab Marine Mineral Resou, Qingdao, Peoples R China
3.Japan Atom Energy Agcy, Adv Sci Res Ctr, Tokai, Ibaraki, Japan
4.Kyushu Univ, Dept Chem, Fukuoka, Japan
First Author AffilicationInstitute of Oceanology, Chinese Academy of Sciences
Corresponding Author AffilicationInstitute of Oceanology, Chinese Academy of Sciences
Recommended Citation
GB/T 7714
Jiang, Mingyu,Ohnuki, Toshihiko,Utsunomiya, Satoshi. Biomineralization of Middle Rare Earth Element Samarium in Yeast and Bacteria Systems[J]. GEOMICROBIOLOGY JOURNAL,2018,35(5):375-384.
APA Jiang, Mingyu,Ohnuki, Toshihiko,&Utsunomiya, Satoshi.(2018).Biomineralization of Middle Rare Earth Element Samarium in Yeast and Bacteria Systems.GEOMICROBIOLOGY JOURNAL,35(5),375-384.
MLA Jiang, Mingyu,et al."Biomineralization of Middle Rare Earth Element Samarium in Yeast and Bacteria Systems".GEOMICROBIOLOGY JOURNAL 35.5(2018):375-384.
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