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Intracellular Magnetite Biomineralization in Bacteria Proceeds by a Distinct Pathway Involving Membrane‐Bound Ferritin and an Iron(II) Species
Author(s) -
Faivre Damien,
Böttger Lars H.,
Matzanke Berthold F.,
Schüler Dirk
Publication year - 2007
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.200700927
Subject(s) - biomineralization , magnetosome , magnetotactic bacteria , magnetite , vesicle , ferritin , chemistry , coprecipitation , bacteria , biophysics , membrane , intracellular , chemical engineering , inorganic chemistry , materials science , biochemistry , biology , metallurgy , engineering , genetics
A time‐resolved study of magnetite formation in magnetotactic bacteria has shown that magnetite biomineralization proceeds first by coprecipitation of Fe 2+ and Fe 3+ ions and then via small magnetite crystallites (see picture) within invaginating magnetosomes associated with the cell membrane, which further develop into mature crystals after magnetosome vesicles are released from the cell membrane.