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Genomic and Transcriptomic Insights into Calcium Carbonate Biomineralization by Marine Actinobacterium Brevibacterium linens BS258
Zhu, Yuying1,2,3; Ma, Ning1,2,3; Jin, Weihua4; Wu, Shimei5; Sun, Chaomin1,2
2017-04-06
发表期刊FRONTIERS IN MICROBIOLOGY
卷号8
文章类型Article
摘要Calcium carbonate (CaCO3) biomineralization has been investigated due to its wide range of scientific and technological implications, however, the molecular mechanisms of this important geomicrobiological process are largely unknown. Here, a ureasepositive marine actinobacterium Brevibacterium linens BS258 was demonstrated to effectively form CaCO3 precipitates. Surprisingly, this bacterium could also dissolve the formed CaCO3 with the increase of the Ca2+ concentration. To disclose the mechanisms of biomineralization, the genome of B. linens BS258 was further completely sequenced. Interestingly, the expression of three carbonic anhydrases was significantly up-regulated along with the increase of Ca2+ concentration and the extent of calcite dissolution. Moreover, transcriptome analyses revealed that increasing concentration of Ca2+ induced KEGG pathways including quorum sensing (QS) in B. linens BS258. Notably, most up-regulated genes related to QS were found to encode peptide/nickel ABC transporters, which suggested that nickel uptake and its associated urease stimulation were essential to boost CaCO3 biomineralization. Within the genome of B. linens BS258, there are both cadmium and lead resistance gene clusters. Therefore, the sequestration abilities of Cd2+ and Pb2+ by B. linens BS258 were checked. Consistently, Pb2+ and Cd2+ could be effectively sequestered with the precipitation of calcite by B. linens BS258. To our knowledge, this is the first study investigating the microbial CaCO3 biomineralization from both genomic and transcriptomic insights, which paves the way to disclose the relationships among bacterial metabolisms and the biomineralization.
关键词Genomic Transcriptomic Marine Actinobacterium Biomineralization Heavy Metal Bioremediation
DOI10.3389/fmicb.2017.00602
收录类别SCI
语种英语
WOS记录号WOS:000398464500001
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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/337002/136740
专题实验海洋生物学重点实验室
作者单位1.Chinese Acad Sci, Inst Oceanol, Key Lab Expt Marine Biol, Qingdao, Peoples R China
2.Qingdao Natl Lab Marine Sci & Technol, Lab Marine Biol & Biotechnol, Qingdao, Peoples R China
3.Univ Chinese Acad Sci, Coll Earth Sci, Beijing, Peoples R China
4.Zhejiang Univ Technol, Coll Biotechnol & Bioengn, Hangzhou, Zhejiang, Peoples R China
5.Qingdao Univ, Coll Life Sci, Qingdao, Peoples R China
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Zhu, Yuying,Ma, Ning,Jin, Weihua,et al. Genomic and Transcriptomic Insights into Calcium Carbonate Biomineralization by Marine Actinobacterium Brevibacterium linens BS258[J]. FRONTIERS IN MICROBIOLOGY,2017,8.
APA Zhu, Yuying,Ma, Ning,Jin, Weihua,Wu, Shimei,&Sun, Chaomin.(2017).Genomic and Transcriptomic Insights into Calcium Carbonate Biomineralization by Marine Actinobacterium Brevibacterium linens BS258.FRONTIERS IN MICROBIOLOGY,8.
MLA Zhu, Yuying,et al."Genomic and Transcriptomic Insights into Calcium Carbonate Biomineralization by Marine Actinobacterium Brevibacterium linens BS258".FRONTIERS IN MICROBIOLOGY 8(2017).
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