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Ultrastructure of ellipsoidal magnetotactic multicellular prokaryotes depicts their complex assemblage and cellular polarity in the context of magnetotaxis
Leao, Pedro1; Chen, Yi-Ran2,3; Abreu, Fernanda1; Wang, Mingling2; Zhang, Wei-Jia3,4; Zhou, Ke2; Xiao, Tian2,3; Wu, Long-Fei3,5; Lins, Ulysses1
2017-06-01
发表期刊ENVIRONMENTAL MICROBIOLOGY
卷号19期号:6页码:2151-2163
文章类型Article
摘要Magnetotactic multicellular prokaryotes (MMPs) consist of unique microorganisms formed by genetically identical Gram-negative bacterial that live as a single individual capable of producing magnetic nanoparticles called magnetosomes. Two distinct morphotypes of MMPs are known: spherical MMPs (sMMPs) and ellipsoidal MMPs (eMMPs). sMMPs have been extensively characterized, but less information exists for eMMPs. Here, we report the ultrastructure and organization as well as gene clusters responsible for magnetosome and flagella biosynthesis in the magnetite magnetosome producer eMMP Candidatus Magnetananas rongchenensis. Transmission electron microscopy and focused ion beam scanning electron microscopy (FIB-SEM) 3D reconstruction reveal that cells with a conspicuous core-periphery polarity were organized around a central space. Magnetosomes were organized in multiple chains aligned along the periphery of each cell. In the partially sequenced genome, magnetite-related mamAB gene and mad gene clusters were identified. Two cell morphologies were detected: irregular elliptical conical ` frustum-like' (IECF) cells and H-shaped cells. IECF cells merge to form H-shaped cells indicating a more complex structure and possibly a distinct evolutionary position of eMMPs when compared with sMMPs considering multicellularity.
DOI10.1111/1462-2920.13677
收录类别SCI
语种英语
WOS记录号WOS:000404007700008
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被引频次:4[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
版本出版稿
条目标识符http://ir.qdio.ac.cn/handle/337002/137137
专题海洋生态与环境科学重点实验室
作者单位1.Univ Fed Rio de Janeiro, Inst Microbiol Paulo de Goes, BR-21941902 Rio De Janeiro, RJ, Brazil
2.Chinese Acad Sci, Inst Oceanol, Key Lab Marine Ecol & Environm Sci, Qingdao, Peoples R China
3.CNRS, Lab Int Assoc Biomineralisat & Nanostruct LIA Bio, Marseille, France
4.Chinese Acad Sci, Inst Deep Sea Sci & Engn, Lab Deep Sea Microbial Cell Biol, Sanya 572000, Peoples R China
5.Aix Marseille Univ, CNRS, LCB, Marseille, France
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Leao, Pedro,Chen, Yi-Ran,Abreu, Fernanda,et al. Ultrastructure of ellipsoidal magnetotactic multicellular prokaryotes depicts their complex assemblage and cellular polarity in the context of magnetotaxis[J]. ENVIRONMENTAL MICROBIOLOGY,2017,19(6):2151-2163.
APA Leao, Pedro.,Chen, Yi-Ran.,Abreu, Fernanda.,Wang, Mingling.,Zhang, Wei-Jia.,...&Lins, Ulysses.(2017).Ultrastructure of ellipsoidal magnetotactic multicellular prokaryotes depicts their complex assemblage and cellular polarity in the context of magnetotaxis.ENVIRONMENTAL MICROBIOLOGY,19(6),2151-2163.
MLA Leao, Pedro,et al."Ultrastructure of ellipsoidal magnetotactic multicellular prokaryotes depicts their complex assemblage and cellular polarity in the context of magnetotaxis".ENVIRONMENTAL MICROBIOLOGY 19.6(2017):2151-2163.
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