Dynamics of Iron Uptake and Fe3O4 Biomineralization during Aerobic and Microaerobic Growth of Magnetospirillum gryphiswaldense
1998 ◽
Vol 180
(1)
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pp. 159-162
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ABSTRACT Iron uptake and magnetite (Fe3O4) crystal formation could be studied in the microaerophilic magnetic bacteriumMagnetospirillum gryphiswaldense by using a radioactive tracer method for iron transport and a differential light-scattering technique for magnetism. Magnetite formation occurred only in a narrow range of low oxygen concentration, i.e., 2 to 7 μM O2 at 30°C. Magnetic cells stored up to 2% iron as magnetite crystals in intracytoplasmic vesicles. This extraordinary uptake of iron was coupled tightly to the biomineralization of up to 60 magnetite crystals with diameters of 42 to 45 nm.
1975 ◽
Vol 11
(5-6)
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pp. 397-398
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1977 ◽
Vol 14
(9)
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pp. 503-507
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1989 ◽
Vol 25
(8)
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pp. 330-334
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1997 ◽
Vol 07
(C1)
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pp. C1-647-C1-650
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1950 ◽
Vol 46
◽
pp. 912
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1963 ◽
Vol 59
(0)
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pp. 2868-2874
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