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The Characterization of Intracellular and Extracellular Biomineralization Induced by Synechocystis sp. PCC6803 Cultured under Low Mg/Ca Ratios Conditions
Han, Zuozhen1,2; Zhao, Yanyang1; Yan, Huaxiao2,3; Zhao, Hui2,3; Han, Mei1; Sun, Bin1; Meng, Ruirui1; Zhuang, Dingxiang1; Li, Dan1; Gao, Wenjing2,3; Du, Shiyun2,3; Wang, Xiaoai2,3; Fan, Kaixiang2,3; Hu, Wenya2,3; Zhang, Mengxue2,3
2017
发表期刊GEOMICROBIOLOGY JOURNAL
卷号34期号:4页码:362-373
文章类型Article
摘要In order to simulate the precipitation process of microbial limestone at the offshore of the ancient ocean, different calcites induced by Synechocystis sp. PCC6803 in culture media with low Mg/Ca ratios (0.01M Ca2+, Mg/Ca = 0, 0.2, 0.4, 0.6) were investigated, and the characteristics of intracellular and extracellular biomineralization were described. Carbonic anhydrase activity of Synechocystis sp. PCC6803 in different culture medium was further detected. The ultrathin slices of Synechocystis sp. PCC6803 cells were analyzed by transmission electron microscope (TEM) and selected area electron diffraction (SAED). Then the precipitates were analyzed by polarizing microscope, scanning electron microscope (SEM), X-ray diffraction (XRD) and energy dispersive spectrometer (EDS). The results showed that the biomineralization precipitates of Synechocystis sp. PCC6803 under low Mg/Ca ratios were mainly calcites with different morphologies. The CA accelerated the pivotal rate limiting step of the calcite precipitation. It was also found that the morphology, microstructure, particle size, preferred orientation, crystallinity and cell volume of calcites changed gradually with the increasing Mg2+ concentrations. What is more important, it was found that Synechocystis sp. PCC6803 had the ability of intracellular biomineralization without crystal structure. The intracellular biomineralization product could be divided into two types. This study can provide some useful information for further understanding the characteristics and mechanisms of biomineralization and even the diagenetic environment research of microbial limestone.
关键词Biomineralization Calcite Crystal Structure Mg Ca Ratio Synechocystis Sp Pcc6803
DOI10.1080/01490451.2016.1197986
收录类别SCI
语种英语
WOS记录号WOS:000399547000009
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文献类型期刊论文
版本出版稿
条目标识符http://ir.qdio.ac.cn/handle/337002/136700
专题海洋地质与环境重点实验室
作者单位1.Shandong Univ Sci & Technol, Coll Earth Sci & Engn, Shandong Prov Key Lab Deposit Mineralizat & Sedim, Qingdao 266590, Peoples R China
2.Chinese Acad Sci, Key Lab Marine Geol & Environm, Qingdao, Peoples R China
3.Shandong Univ Sci & Technol, Dept Bioengn, Coll Chem & Environm Engn, Bioresources Lab, Qingdao, Peoples R China
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Han, Zuozhen,Zhao, Yanyang,Yan, Huaxiao,et al. The Characterization of Intracellular and Extracellular Biomineralization Induced by Synechocystis sp. PCC6803 Cultured under Low Mg/Ca Ratios Conditions[J]. GEOMICROBIOLOGY JOURNAL,2017,34(4):362-373.
APA Han, Zuozhen.,Zhao, Yanyang.,Yan, Huaxiao.,Zhao, Hui.,Han, Mei.,...&Zhang, Mengxue.(2017).The Characterization of Intracellular and Extracellular Biomineralization Induced by Synechocystis sp. PCC6803 Cultured under Low Mg/Ca Ratios Conditions.GEOMICROBIOLOGY JOURNAL,34(4),362-373.
MLA Han, Zuozhen,et al."The Characterization of Intracellular and Extracellular Biomineralization Induced by Synechocystis sp. PCC6803 Cultured under Low Mg/Ca Ratios Conditions".GEOMICROBIOLOGY JOURNAL 34.4(2017):362-373.
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