Ultrastructure of ellipsoidal magnetotactic multicellular prokaryotes depicts their complex assemblage and cellular polarity in the context of magnetotaxis

doi:10.1111/1462-2920.13677

CORC > 海洋研究所 > 中国科学院海洋研究所 > 海洋生态与环境科学重点实验室

	Ultrastructure of ellipsoidal magnetotactic multicellular prokaryotes depicts their complex assemblage and cellular polarity in the context of magnetotaxis
	Leao, Pedro 1; Chen, Yi-Ran 2,3; Abreu, Fernanda 1; Wang, Mingling 2; Zhang, Wei-Jia 3,4; Zhou, Ke 2; Xiao, Tian 2,3; Wu, Long-Fei 3,5; Lins, Ulysses 1
刊名	ENVIRONMENTAL MICROBIOLOGY
	2017-06-01
卷号	19 期号:6 页码:2151-2163
DOI	10.1111/1462-2920.13677
文献子类	Article
英文摘要	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.
语种	英语
WOS记录号	WOS:000404007700008
内容类型	期刊论文
版本	出版稿
源URL	[http://ir.qdio.ac.cn/handle/337002/137137]
专题	海洋研究所_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
推荐引用方式 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.