中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
首页 机构 成果 学者
  
  1. CAS IR Grid
  2. 地质与地球物理研究所
  3. 中国科学院地质与地球物理研究所
  4. 科技支撑系统
From the inside out: Elemental compositions and mineral phases provide insights into bacterial calcification

文献类型：期刊论文

作者Lyu, Jiejie4,5; Li, Fuchun4; Zhang, Chonghong4; Gower, Laurie5; Wasman, Scott1; Sun, Jun4; Yang, Guoguo4; Chen, Jiani6; Gu, Lixin2; Tang, Xu2
刊名CHEMICAL GEOLOGY
出版日期2021-01-05
卷号559页码:12
ISSN号0009-2541
关键词Microbial induced carbonate precipitation Calcified bacteria Macroscale crystal aggregates Pores Biomineralization
DOI10.1016/j.chemgeo.2020.119974
英文摘要Microscale analytical methods were used to investigate calcified bacteria and the surrounding CaCO3 crystallites induced by the ureolytic strain Bacillus cereus LV-1. The macroscale crystal aggregates, often with unusual morphologies (e.g., sunflowers to spheres), were found to have bacterial-shaped pores distributed on the surface and/or inside the crystallites. Focused ion beam (FIB) slices were used to examine the cross sections of isolated bacterial precipitates. Elemental composition via energy dispersive spectroscopy (EDS) of the bacterial sections confirmed the existence of organic matter underlying the calcified layer, and selected area electron diffraction (SAED) across these sections found that different mineral phases were present, with the following distribution from the inside to the outside of the mineral shell: amorphous CaCO3 (ACC) -> vaterite -> calcite. We propose that in the early stages, the cell surfaces act as templates that either adsorb or nucleate amorphous CaCO3, which then transforms into the more stable crystalline polymorphs toward the periphery where there is less inhibitory exopolymeric substance (EPS). With prolonged experimental time, the calcium carbonate shells on the cell surfaces continued to grow while also accumulating aggregates of other nanoparticles from solution, to fully encase the calcified bacteria within macroscale crystal aggregates. Thus, we propose that calcified bacteria can serve as a kind of structural unit in microbial induced carbonate precipitates (MICPs).
WOS关键词AMORPHOUS CALCIUM-CARBONATE ; PRECIPITATION ; BIOMINERALIZATION ; NUCLEATION ; TEM ; EXOPOLYSACCHARIDES ; COMPRESSIBILITY ; NANOBACTERIA ; CONSTRUCTION ; CEMENTATION
资助项目National Natural Science Foundation of China[41673083] ; National Natural Science Foundation of China[41172308] ; Second Tibetan Plateau Scientific Expedition and Research[STEP 2019QZKK0707] ; Postdoctoral Science Foundation of China[2019 M661859]
WOS研究方向Geochemistry & Geophysics
语种英语
出版者ELSEVIER
WOS记录号WOS:000600546500020
资助机构National Natural Science Foundation of China ; National Natural Science Foundation of China ; Second Tibetan Plateau Scientific Expedition and Research ; Second Tibetan Plateau Scientific Expedition and Research ; Postdoctoral Science Foundation of China ; Postdoctoral Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Second Tibetan Plateau Scientific Expedition and Research ; Second Tibetan Plateau Scientific Expedition and Research ; Postdoctoral Science Foundation of China ; Postdoctoral Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Second Tibetan Plateau Scientific Expedition and Research ; Second Tibetan Plateau Scientific Expedition and Research ; Postdoctoral Science Foundation of China ; Postdoctoral Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Second Tibetan Plateau Scientific Expedition and Research ; Second Tibetan Plateau Scientific Expedition and Research ; Postdoctoral Science Foundation of China ; Postdoctoral Science Foundation of China
源URL[http://ir.iggcas.ac.cn/handle/132A11/99940]  
专题地质与地球物理研究所_科技支撑系统
通讯作者Li, Fuchun; Gower, Laurie
作者单位1.Univ Florida, Engn Sch Sustainable Infrastruct & Environm, Gainesville, FL 32611 USA
2.Chinese Acad Sci, Inst Geol & Geophys, Beijing 100029, Peoples R China
3.Univ Florida, Nanoscale Res Facil, Gainesville, FL 32611 USA
4.Nanjing Agr Univ, Coll Resources & Environm Sci, Nanjing 210095, Jiangsu, Peoples R China
5.Univ Florida, Dept Mat Sci & Engn, Gainesville, FL 32611 USA
6.Nanjing Univ, State Key Lab Mineral Deposits Res, Nanjing 210046, Jiangsu, Peoples R China
推荐引用方式
GB/T 7714		 Lyu, Jiejie,Li, Fuchun,Zhang, Chonghong,et al. From the inside out: Elemental compositions and mineral phases provide insights into bacterial calcification[J]. CHEMICAL GEOLOGY,2021,559:12.
APA Lyu, Jiejie.,Li, Fuchun.,Zhang, Chonghong.,Gower, Laurie.,Wasman, Scott.,...&Scheiffele, Gary.(2021).From the inside out: Elemental compositions and mineral phases provide insights into bacterial calcification.CHEMICAL GEOLOGY,559,12.
MLA Lyu, Jiejie,et al."From the inside out: Elemental compositions and mineral phases provide insights into bacterial calcification".CHEMICAL GEOLOGY 559(2021):12.

入库方式： OAI收割

来源：地质与地球物理研究所

浏览0
下载0
收藏0
其他版本

除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。