Postprint version. Published in Applied and Environmental Microbiology, Volume 71, Issue 8, August 1, 2005, pages 4902-4905. Copyright © 2005 American Society for Microbiology. The definitive version is available at http://dx.doi.org/10.1128/AEM.71.8.4902-4905.2005.
High-resolution transmission electron microscopy and electron holography were used to study the habits of exceptionally large magnetite crystals in coccoid magnetotactic bacteria. In addition to the crystal habits, the crystallographic positioning of successive crystals in the magnetosome chain appears to be under strict biological control.