magnetosome


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magnetosome

An iron-rich, membrane-bound prokaryotic organelle found in magnetotropic bacteria which contains 15 to 20 magnetite crystals that act like a magnetic compass needle and orient bacteria in response to geomagnetic fields, mediating biomineralisation.
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Frankel, "Magnetosome formation in prokaryotes," Nature Reviews Microbiology, vol.
In nature, magnetotactic bacteria (MTBs) is a special kind of bacteria which have many micro magnetic particles named magnetosome in their bodies.
gryphiswaldense), contain magnetosome membrane (MM) proteins which play an important role in magnetite biomineralization.
Li et al., "Two bifunctional enzymes with ferric reduction ability play complementary roles during magnetosome synthesis in Magnetospirillum gryphiswaldense MSR-1," Journal of Bacteriology, vol.
As shown in Figure 2, the XRD pattern of synthetic magnetic nanocrystal and magnetosome matched well with the standard [Fe.sub.3][O.sub.4] reflections.
Previous studies have shown that some magnetosome chains would not be useful for navigation because their crystal sizes did not possess the right magnetic qualities.
Similarly, what a certain signal in the visual system of male hoverflies is supposed to represent is the nearness of fertile female hoverflies; what the signal in the snake's nervous system signifies, when triggered by the requisite combination of warmth and movement, is the presence of prey (perhaps specifically of a mouse); and what the magnetosome represents (if anything)(11) is the direction of safe travel.
Prozorov, "Following iron speciation in the early stages of magnetite magnetosome biomineralization," Journal of Materials Research, vol.
Avdeev et al., "Structure characterization of the magnetosome solutions for hyperthermia study," Journal of Molecular Liquids, vol.
A detailed look at its DNA revealed that BW-1 has two sets of magnetosome genes, unlike other such bacteria, which produce only one mineral and have only one set of magnetosome genes.