Study of the incorporation of carrier-free57Co in Fe(II) and Mn(II) oxalates by a double radioactive tracer method

1987 ◽  
Vol 109 (2) ◽  
pp. 439-448 ◽  
Author(s):  
M. Devillers ◽  
J. Ladrière ◽  
D. Apers
1989 ◽  
Vol 25 (8) ◽  
pp. 330-334
Author(s):  
A. Owezarezyk ◽  
M. Strzelecki ◽  
St. Szpilowski ◽  
R. Wierzchnicki ◽  
T. Basiński

1998 ◽  
Vol 180 (1) ◽  
pp. 159-162 ◽  
Author(s):  
Dirk Schüler ◽  
Edmund Baeuerlein

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.


Refractories ◽  
1977 ◽  
Vol 18 (3-4) ◽  
pp. 223-226
Author(s):  
V. I. Shubin ◽  
V. I. Nikonorov ◽  
Yu. A. Kurbatov ◽  
O. M. Stanulionis ◽  
V. P. Vasil'ev ◽  
...  

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