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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
Source PublicationGEOMICROBIOLOGY JOURNAL
Volume34Issue:4Pages:362-373
SubtypeArticle
AbstractIn 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.
KeywordBiomineralization Calcite Crystal Structure Mg Ca Ratio Synechocystis Sp Pcc6803
DOI10.1080/01490451.2016.1197986
Indexed BySCI
Language英语
WOS IDWOS:000399547000009
Citation statistics
Document Type期刊论文
Version出版稿
Identifierhttp://ir.qdio.ac.cn/handle/337002/136700
Collection海洋地质与环境重点实验室
Affiliation1.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
Recommended Citation
GB/T 7714
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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