Journal Article10.1111/1758-2229.12371
Novel species and expanded distribution of ellipsoidal multicellular magnetotactic prokaryotes
Yi-Ran Chen,Yi-Ran Chen,Wenyan Zhang,Wenyan Zhang,Ke Zhou,Hongmiao Pan,Hongmiao Pan,Haijian Du,Haijian Du,Cong Xu,Jianhong Xu,Nathalie Pradel,Nathalie Pradel,Claire-Lise Santini,Claire-Lise Santini,Jinhua Li,Hui Huang,Yongxin Pan,Tian Xiao,Tian Xiao,Long-Fei Wu,Long-Fei Wu +21 more
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TL;DR: Comparison of nine physical and chemical parameters revealed that sand grain size and the content of inorganic nitrogen in the sediments from Rongcheng City and Six-Fours-les-Plages were similar, and lower than found for sediment from the other two sampling sites, revealing broad diversity and wide distribution of e-MMPs.
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Abstract: Multicellular magnetotactic prokaryotes (MMPs) are a peculiar group of magnetotactic bacteria, each comprising approximately 10-100 cells of the same phylotype. Two morphotypes of MMP have been identified, including several species of globally distributed spherical mulberry-like MMPs (s-MMPs), and two species of ellipsoidal pineapple-like MMPs (e-MMPs) from China (Qingdao and Rongcheng cities). We recently collected e-MMPs from Mediterranean Sea sediments (Six-Fours-les-Plages) and Drummond Island, in the South China Sea. Phylogenetic analysis revealed that the MMPs from Six-Fours-les-Plages and the previously reported e-MMP CandidatusMagnetananas rongchenensis have 98.5% sequence identity and are the same species, while the MMPs from Drummond Island appear to be a novel species, having >7.1% sequence divergence from the most closely related e-MMP, CandidatusMagnetananas tsingtaoensis. Identification of the novel species expands the distribution of e-MMPs to Tropical Zone. Comparison of nine physical and chemical parameters revealed that sand grain size and the content of inorganic nitrogen (nitrate, ammonium and nitrite) in the sediments from Rongcheng City and Six-Fours-les-Plages were similar, and lower than found for sediments from the other two sampling sites. The results of the study reveal broad diversity and wide distribution of e-MMPs.
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Citations
Microbe-Mediated Extracellular and Intracellular Mineralization: Environmental, Industrial, and Biotechnological Applications
TL;DR: The different types of microbe‐mediated biomineralization that occur in nature, their mechanisms, as well as their applications are elucidated to create a backdrop for future research.
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Lists of names of prokaryotic Candidatus taxa.
TL;DR: The authors present annotated lists of names of Candidatus taxa of prokaryotes with ranks between subspecies and class, proposed between the mid-1990s, when the provisional status of Candidate taxa was first established, and the end of 2018, where necessary, corrected names are proposed that comply with the current provisions of the International Code of Nomenclature of Prokaryote and its Orthography appendix.
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Magnetotactic bacteria and magnetofossils: ecology, evolution and environmental implications
TL;DR: Magnetotactic bacteria (MTB) are a group of phylogenetically diverse and morphologically varied microorganisms with a magnetoresponsive capability called magnetotaxis or microbial magnetoreception as discussed by the authors .
Desulfamplus magnetovallimortis gen. nov., sp nov., a magnetotactic bacterium from a brackish desert spring able to biomineralize greigite and magnetite, that represents a novel lineage in the Desulfobacteraceae
Elodie C. T. Descamps,Caroline L. Monteil,Nicolas Menguy,Nicolas Ginet,David Pignol,Dennis A. Bazylinski,Christopher T. Lefèvre +6 more
TL;DR: Phylogenomic and phylogenetic analyses indicate that strain BW-1T belongs to the Desulfobacteraceae family within the Deltaproteobacteria class and can be considered as a novel species of a new genus, for which the name Desulfamplus magnetovallimortis is proposed.
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Juxtaposed membranes underpin cellular adhesion and display unilateral cell division of multicellular magnetotactic prokaryotes
Xin-Xin Qian,Xin-Xin Qian,Claire-Lise Santini,Claire-Lise Santini,Artemis Kosta,Nicolas Menguy,Nicolas Menguy,Hugo Le Guenno,Wenyan Zhang,Wenyan Zhang,Jinhua Li,Jinhua Li,Yi-Ran Chen,Yi-Ran Chen,Jia Liu,Jia Liu,François Alberto,François Alberto,Leon Espinosa,Tian Xiao,Tian Xiao,Long-Fei Wu,Long-Fei Wu +22 more
TL;DR: Fluorescence confocal microscopy and ultra-thin section images revealed not only the one-layer hollow three-dimensional architecture, but also periphery-core unilateral constriction of constituent cells and unidirectional binary fission of the ellipsoidal MMPs, suggesting the evolution toward M MPs multicellularity via the mechanism of incomplete separation of offspring.
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CORRIGENDUM: Ubiquinone-quantum dot bioconjugates for in vitro and intracellular complex I sensing
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Sheri L. Simmons,Stefan M. Sievert,Richard B. Frankel,Dennis A. Bazylinski,Katrina J. Edwards +4 more
TL;DR: A novel, greigite-producing rod in the sulfidic hypolimnion that was present in relatively constant abundance over the course of the season is identified, which may suggest an iron- rather than sulfur-based respiratory metabolism in magnetotactic bacteria.