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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
Source PublicationENVIRONMENTAL MICROBIOLOGY
Volume19Issue:6Pages:2151-2163
SubtypeArticle
AbstractMagnetotactic 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
Indexed BySCI
Language英语
WOS IDWOS:000404007700008
Citation statistics
Cited Times:6[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Version出版稿
Identifierhttp://ir.qdio.ac.cn/handle/337002/137137
Collection海洋生态与环境科学重点实验室
Affiliation1.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
Recommended Citation
GB/T 7714
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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