Imaging faces of shadowed magnetite (Fe3O4) crystals from magnetotactic bacteria with energy-filtering transmission electron microscopy

Microscopy Research and Technique

Volumn 46, Issue 4-5, 1999, Pages 319-324

  Lins, Ulysses ^a   Kachar, Bechara ^b   Farina, Marcos ^a  

^a FEDERAL UNIVERSITY OF RIO DE JANEIRO   (Brazil)

^b NATIONAL INSTITUTES OF HEALTH   (United States)

Author keywords

Bacterial magnetite; Biomineralization; Energy filtering transmission electron microscopy; Magnetotactic bacteria

Indexed keywords

BACTERIA; BIOMINERALIZATION; ELECTRON ENERGY LEVELS; ELECTRON ENERGY LOSS SPECTROSCOPY; ELECTRON SCATTERING; ELECTRONS; ENERGY DISSIPATION; HIGH RESOLUTION TRANSMISSION ELECTRON MICROSCOPY; PLATINUM; SCANNING ELECTRON MICROSCOPY;

BACTERIAL MAGNETITE; ENERGY-FILTERING TRANSMISSION ELECTRON MICROSCOPIES; HIGH VACUUM; INELASTICALLY SCATTERED; MAGNETITE CRYSTALS; MAGNETOTACTIC BACTERIA; PLATINUM PARTICLES; SCATTERED ELECTRONS; TRANSMISSION ELECTRON; UNCULTURED MAGNETOTACTIC BACTERIA;

MAGNETITE;

MAGNETITE; PLATINUM;

ARTICLE; BACTERIUM; CONTRAST; CRYSTAL; ELECTRON ENERGY LOSS SPECTROSCOPY; MAGNETIC FIELD; MICROSCOPE IMAGE; MINERALIZATION; NONHUMAN; PRIORITY JOURNAL; SCANNING ELECTRON MICROSCOPY; SURFACE PROPERTY; TRANSMISSION ELECTRON MICROSCOPY;

EID: 0033200378     PISSN: 1059910X     EISSN: None     Source Type: Journal    
DOI: 10.1002/(SICI)1097-0029(19990815/01)46:4/5<319::AID-JEMT9>3.0.CO;2-N     Document Type: Article

References (18)

1. Aksiyote-Benbasat J, Ruben G C, Marx KA. 1990. Solution structure of bacteriophage T4D and icosahedral capsid geometry visualized in freeze-fractured, deep-etched replicas. J Biol Struct Dyn 7: 773-794.
2. Bazylinaki DA. 1995. Structure and function of the bacterial magnetosome. ASM News 61:337-343.
3. 4) crystals from magnetotactic bacteria by electron and atomic force microscopy J. Microsc 173:1-8.
4. Gorby YA, Beveridge TJ, Blakemore RP. 1988. Characterization of the bacterial magnetosome membrane. J Bacteriol 170:834-841.
5. Heuser J. 1989. Protocol for 3-D visualization of molecules on mica via the quick-freeze, deep-etch technique. J Electron Microsc Tech 13: 244-263.
6. Lins de Barros HGP, Esquivel DMS, and Farina M. 1990. Magnetotaxis. Sci Progr 74:347-359.
7. Mann S. 1986. Biomineralization in lower plants and animals: chemical perspectives. In: Leadbeater BSC, Riding R, editors. Biomineralization in lower plants and animals. New York: Clarendon Press. p 39-54.
8. Mann S, Sparks NHC, Wade VJ. 1990. Crystallochemical control of iron oxide biomineralization. In: Frankel RB, Blakemore RP, editors. Iron biominerals. New York: Plenum Press, p 21-49.
9. Matsuda T, Endo J, Osakabe N, Tonomura A. 1983. Morphology and structure of biogenic magnetite particles. Nature 302:411-412.
10. Pósfai M, Buseck P R, Bazylinski D A, Frankel RB. 1998. Reaction sequence of iron sulfide minerals in bacteria and their use as biomarkers. Science 280:880-883.
11. Proksch R, Moskowitz BM, Dan Dahlberg E, Schaeffer T, Bazylinski DA, Frankel RB. 1995. Magnetic force microscopy of the submicron magnetic assembly in a magnetotactic bacterium. Appl Phys Lett 66:2582-2584.
12. Reimer L. 1991. Energy-filtering transmission electron microscopy. Adv Electr Electr Phys 81:43-126.
13. Ruben GC. 1995. Quantification of particle sizes with metal replication under standard freeze-etching conditions: a gold ball standard for calibrating shadow widths was used to measure freeze-etched globular proteins. Microsc Res Tech 32:312-329.
14. Ruben GC. 1998 Vertical Pt-C replication, a revolution in imaging non-periodic macromolecules, biological gels and low-density polymer networks. Micron 29:359-396.
15. Spring S, Lins U, Amann R, Schleifer K, Ferreira L, Esquivel D, Farina M. 1998. Phylogenetic affiliation and ultrastructure of uncultured magnetic bacteria with unusually large magnetosomes. Arch Microbiol 169:136-147.
16. Stolz JF. 1993. Magnetosomes. J Gen Microbiol 139:1663-1670.
17. Thornhill RH, Burgess JG, Sakaguchi T, Matsunaga T. 1994. A morphological classification of bacteria containing bullet-shaped magnetic particles. FEMS Microbiol Lett 115:169-176.
18. Vali H, Kirschvink JL. 1990 Observations of magnetosome organization, surface structure and iron biomineralization of undescribed magnetic bacteria: evolutionary speculations. In: Frankel RB, Blakemore RP, editors. Iron biominerals. New York: Plenum Press. p 97-115.