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Rock magnetic criteria for the detection of biogenic magnetite
Magnetosome formation in prokaryotes
Progress has been made in elucidating the molecular, biochemical, chemical and genetic bases of magnetosome formation and understanding how these unique intracellular organelles function.
Magneto-aerotaxis in marine coccoid bacteria.
Spatiotemporal Distribution of Marine Magnetotactic Bacteria in a Seasonally Stratified Coastal Salt Pond
- S. Simmons, S. Sievert, R. Frankel, D. Bazylinski, K. Edwards
- Environmental ScienceApplied and Environmental Microbiology
- 1 October 2004
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.
Biologically Induced Mineralization by Bacteria
This chapter focuses on biologically induced mineralization, which is, in essence, equivalent to inorganic mineralization under the same environmental conditions and the minerals are therefore likely to have crystallochemical features that are generally indistinguishable from minerals produced by inorganic chemical reactions.
Magnetite from magnetotactic bacteria; size distributions and twinning
- B. Devouard, M. Pósfai, X. Hua, D. Bazylinski, R. Frankel, P. Buseck
- Materials Science
- 1 December 1998
We studied intracellular magnetite particles produced by several morphological types of magnetotactic bacteria including the spirillar (helical) freshwater species, Magnetospirillum magnetotacticum,…
Multiple Evolutionary Origins of Magnetotaxis in Bacteria
Phylogenetic analyses of small subunit ribosomal RNA sequences showed that all known magnetotactic bacteria of the iron oxide type are associated with the a subgroup of the Proteobacteria in the domain Bacteria, and suggest that magnetotaxis based on iron oxides and iron sulfides evolved independently.
Electron microscopy study of magnetosomes in a cultured coccoid magnetotactic bacterium
- F. Meldrum, S. Mann, B. Heywood, R. Frankel, D. Bazylinski
- Materials ScienceProceedings of the Royal Society of London…
- 22 March 1993
Intracellular magnetite (Fe3O4) crystals produced by the magnetotactic bacterium MC-1 were analysed by transmission electron microscopy (TEM) and showed that the crystal morphology was controlled even at early stages of development.
Biomineralization of ferrimagnetic greigite (Fe3S4) and iron pyrite (FeS2) in a magnetotactic bacterium
THE ability of magnetotactic bacteria to orientate and navigate along geomagnetic field lines is due to the controlled intracellular deposition of the iron oxide mineral, magnetite (Fe3O4)1,2. The…
Ecology, Diversity, and Evolution of Magnetotactic Bacteria
The purpose of this review is focused on the diversity and the ecology of the MTB and also the evolution and transfer of the molecular determinants involved in magnetosome formation.