Magnetite biomineralization in termites
نویسندگان
چکیده
منابع مشابه
Controlled Biomineralization of Magnetite (Fe30
A slowly moving, rod-shaped magnetotactic bacterium was found in relatively large numbers at and below the oxic-anoxic transition zone of a semianaerobic estuarine basin. Unlike all magnetotactic bacteria described to date, cells of this organism produce single-magnetic-domain particles of an iron oxide, magnetite (Fe3 0 4), and an iron sulfide, greigite (Fe3 S4), within their magnetosomes. The...
متن کاملMagnetite biomineralization in the human brain.
Although the mineral magnetite (Fe3O4) is precipitated biochemically by bacteria, protists, and a variety of animals, it has not been documented previously in human tissue. Using an ultrasensitive superconducting magnetometer in a clean-lab environment, we have detected the presence of ferromagnetic material in a variety of tissues from the human brain. Magnetic particle extracts from solubiliz...
متن کاملModes of Biomineralization of Magnetite by Microbes
Biomineralization processes have traditionally been grouped into two distinct modes; biologically induced mineralization (BIM) and biologically controlled mineralization (BCM). In BIM, mi crobes cause mineral formation by sorbing solutes onto their cell surfaces or extruded organic polymers and/or releasing reactive metabolites which alter the saturation state of the solution proxi mal to the...
متن کاملRunning title: Denitrification and magnetite biomineralization
Ludwig-Maximilians-Universität München, Department Biologie I, 8 Mikrobiologie, Großhaderner Str. 4, 82152 Planegg-Martinsried, Germany 9 10 #Corresponding author: Dirk Schüler 11 e-mail: [email protected] 12 Tel: +4989218074502 13 Fax: +4989218074515 14 15 16 Copyright © 2012, American Society for Microbiology. All Rights Reserved. J. Bacteriol. doi:10.1128/JB.00903-12 JB Accepts, published...
متن کاملMagnetite biomineralization and ancient life on Mars.
Certain chemical and mineral features of the Martian meteorite ALH84001 were reported in 1996 to be probable evidence of ancient life on Mars. In spite of new observations and interpretations, the question of ancient life on Mars remains unresolved. Putative biogenic, nanometer magnetite has now become a leading focus in the debate.
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Proceedings of the Royal Society of London. Series B: Biological Sciences
سال: 1998
ISSN: 0962-8452,1471-2954
DOI: 10.1098/rspb.1998.0354