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Diverse Intracellular Inclusion Types Within Magnetotactic Bacteria: Implications for Biogeochemical Cycling in Aquatic Environments

文献类型：期刊论文

作者Li, Jinhua3,4,5; Liu, Peiyu3,4,5; Tamaxia, Alima3,4,5; Zhang, Heng3,4,5; Liu, Yan3,4,5; Wang, Jian2; Menguy, Nicolas1; Zhao, Xiang6; Roberts, Andrew P.6; Pan, Yongxin3,5
刊名JOURNAL OF GEOPHYSICAL RESEARCH-BIOGEOSCIENCES
出版日期2021-07-01
卷号126期号:7页码:19
关键词Azospirillum genus biogeochemical cycles biomineralization intracellular inclusions magnetotactic bacteria OATZ
ISSN号2169-8953
DOI10.1029/2021JG006310
英文摘要Magnetotactic bacteria (MTB) are a group of prokaryotes that generally live dominantly at or just below the oxic-anoxic transition zone (OATZ) in diverse aquatic environments. They biomineralize intracellular magnetic nanocrystals of magnetite (Fe3O4) or/and greigite (Fe3S4) each enveloped by a bilayer membrane, called a magnetosome, and often organized into a chain or chains. Here, we identify a new magnetotactic spirillum strain (tentatively named WYHS-1) from freshwater sediments of Weiyang Lake, Xi'an, northwestern China, using coupled fluorescence and transmission electron microscopy at the single-cell level. Phylogenetic analysis of the 16S rRNA gene sequence indicates that strain WYHS-1 is affiliated with the Azospirillum genus within the Alphaproteobacteria class of the Proteobacteria phylum. Transmission electron microscopy combined with synchrotron-based scanning transmission X-ray microscopy analyses reveal that strain WYHS-1 produces nearly isotropic magnetite-type crystals, with average lengths and widths of 34.5 +/- 6.7 nm and 32.8 +/- 6.5 nm, respectively. WYHS-1 cells also contain at least three other types of intracellular, submicron inclusions: Sulfur (S-0) globules, Ca/Mg-rich polyphosphate granules, and organic-deficient vacuoles. Unlike magnetic particles, which occur within all WYHS-1 cells, the latter three inclusion types are not always present, which indicates that they may be temporary intracellular structures that store or transport chemicals. Together with genomic and physicochemical knowledge for available bacteria, we propose a conceptual model in which MTB drive biogeochemical elemental cycling within aquatic OATZ environments and contribute to the distribution and burial of biominerals in sediments.
WOS关键词TRANSMISSION ELECTRON-MICROSCOPY ; POLY-BETA-HYDROXYBUTYRATE ; INDEPENDENT CHARACTERIZATION ; CANDIDATUS MAGNETOBACTERIUM ; BIOMINERALIZATION ; MAGNETOSOME ; MAGNETITE ; MARINE ; MICROORGANISMS ; CULTURE
资助项目National Natural Science Foundation of China[41920104009] ; National Natural Science Foundation of China[41890843] ; National Natural Science Foundation of China[41621004] ; Center for Ocean Mega-Science, Chinese Academy of Sciences[RVKEXUE2019GZ06] ; Australian Research Council[DP160100805] ; Australian Research Council[DP200100765] ; Natural Sciences and Engineering Research Council of Canada ; National Research Council of Canada ; Canadian Institutes of Health Research ; Province of Saskatchewan, Western Economic Diversification Canada ; University of Saskatchewan.
WOS研究方向Environmental Sciences & Ecology ; Geology
语种英语
WOS记录号WOS:000677821700021
出版者AMER GEOPHYSICAL UNION
资助机构National Natural Science Foundation of China ; National Natural Science Foundation of China ; Center for Ocean Mega-Science, Chinese Academy of Sciences ; Center for Ocean Mega-Science, Chinese Academy of Sciences ; Australian Research Council ; Australian Research Council ; Natural Sciences and Engineering Research Council of Canada ; Natural Sciences and Engineering Research Council of Canada ; National Research Council of Canada ; National Research Council of Canada ; Canadian Institutes of Health Research ; Canadian Institutes of Health Research ; Province of Saskatchewan, Western Economic Diversification Canada ; Province of Saskatchewan, Western Economic Diversification Canada ; University of Saskatchewan. ; University of Saskatchewan. ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Center for Ocean Mega-Science, Chinese Academy of Sciences ; Center for Ocean Mega-Science, Chinese Academy of Sciences ; Australian Research Council ; Australian Research Council ; Natural Sciences and Engineering Research Council of Canada ; Natural Sciences and Engineering Research Council of Canada ; National Research Council of Canada ; National Research Council of Canada ; Canadian Institutes of Health Research ; Canadian Institutes of Health Research ; Province of Saskatchewan, Western Economic Diversification Canada ; Province of Saskatchewan, Western Economic Diversification Canada ; University of Saskatchewan. ; University of Saskatchewan. ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Center for Ocean Mega-Science, Chinese Academy of Sciences ; Center for Ocean Mega-Science, Chinese Academy of Sciences ; Australian Research Council ; Australian Research Council ; Natural Sciences and Engineering Research Council of Canada ; Natural Sciences and Engineering Research Council of Canada ; National Research Council of Canada ; National Research Council of Canada ; Canadian Institutes of Health Research ; Canadian Institutes of Health Research ; Province of Saskatchewan, Western Economic Diversification Canada ; Province of Saskatchewan, Western Economic Diversification Canada ; University of Saskatchewan. ; University of Saskatchewan. ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Center for Ocean Mega-Science, Chinese Academy of Sciences ; Center for Ocean Mega-Science, Chinese Academy of Sciences ; Australian Research Council ; Australian Research Council ; Natural Sciences and Engineering Research Council of Canada ; Natural Sciences and Engineering Research Council of Canada ; National Research Council of Canada ; National Research Council of Canada ; Canadian Institutes of Health Research ; Canadian Institutes of Health Research ; Province of Saskatchewan, Western Economic Diversification Canada ; Province of Saskatchewan, Western Economic Diversification Canada ; University of Saskatchewan. ; University of Saskatchewan.
源URL[http://ir.iggcas.ac.cn/handle/132A11/101939]  
专题地质与地球物理研究所_中国科学院地球与行星物理重点实验室
通讯作者Li, Jinhua
作者单位1.Sorbonne Univ, CNRS, Inst Mineral Phys Mat & Cosmochim IMPMC, UMR 7590, Paris, France
2.Univ Saskatchewan, Canadian Light Source Inc, Saskatoon, SK, Canada
3.Univ Chinese Acad Sci, Coll Earth & Planetary Sci, Beijing, Peoples R China
4.Qingdao Natl Lab Marine Sci & Technol, Lab Marine Geol, Qingdao, Peoples R China
5.Chinese Acad Sci IGGCAS, Key Lab Earth & Planetary Phys, Innovat Acad Earth Sci, Inst Geol & Geophys, Beijing, Peoples R China
6.Australian Natl Univ, Res Sch Earth Sci, Canberra, ACT, Australia
推荐引用方式
GB/T 7714		 Li, Jinhua,Liu, Peiyu,Tamaxia, Alima,et al. Diverse Intracellular Inclusion Types Within Magnetotactic Bacteria: Implications for Biogeochemical Cycling in Aquatic Environments[J]. JOURNAL OF GEOPHYSICAL RESEARCH-BIOGEOSCIENCES,2021,126(7):19.
APA Li, Jinhua.,Liu, Peiyu.,Tamaxia, Alima.,Zhang, Heng.,Liu, Yan.,...&Pan, Yongxin.(2021).Diverse Intracellular Inclusion Types Within Magnetotactic Bacteria: Implications for Biogeochemical Cycling in Aquatic Environments.JOURNAL OF GEOPHYSICAL RESEARCH-BIOGEOSCIENCES,126(7),19.
MLA Li, Jinhua,et al."Diverse Intracellular Inclusion Types Within Magnetotactic Bacteria: Implications for Biogeochemical Cycling in Aquatic Environments".JOURNAL OF GEOPHYSICAL RESEARCH-BIOGEOSCIENCES 126.7(2021):19.

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来源：地质与地球物理研究所

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