Document Detail

Three-dimensional imaging of the highly bent architecture of Bdellovibrio bacteriovorus by using cryo-electron tomography.
MedLine Citation:
PMID:  18203829     Owner:  NLM     Status:  MEDLINE    
Bdellovibrio bacteriovorus cells are small deltaproteobacterial cells that feed on other gram-negative bacteria, including human pathogens. Using cryo-electron tomography, we demonstrated that B. bacteriovorus cells are capable of substantial flexibility and local deformation of the outer and inner membranes without loss of cell integrity. These shape changes can occur in less than 2 min, and analysis of the internal architecture of highly bent cells showed that the overall distribution of molecular machines and the nucleoid is similar to that in moderately bent cells. B. bacteriovorus cells appear to contain an extensive internal network of short and long filamentous structures. We propose that rearrangements of these structures, in combination with the unique properties of the cell envelope, may underlie the remarkable ability of B. bacteriovorus cells to find and enter bacterial prey.
Mario J Borgnia; Sriram Subramaniam; Jacqueline L S Milne
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Publication Detail:
Type:  Journal Article; Research Support, N.I.H., Extramural     Date:  2008-01-18
Journal Detail:
Title:  Journal of bacteriology     Volume:  190     ISSN:  1098-5530     ISO Abbreviation:  J. Bacteriol.     Publication Date:  2008 Apr 
Date Detail:
Created Date:  2008-03-18     Completed Date:  2008-07-03     Revised Date:  2009-11-18    
Medline Journal Info:
Nlm Unique ID:  2985120R     Medline TA:  J Bacteriol     Country:  United States    
Other Details:
Languages:  eng     Pagination:  2588-96     Citation Subset:  IM    
Laboratory of Cell Biology, National Cancer Institute, National Institutes of Health, 50 South Drive, Bethesda, MD 20892, USA.
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MeSH Terms
Bacterial Physiological Phenomena
Bdellovibrio / cytology,  ultrastructure*
Cell Membrane / ultrastructure
Cryoelectron Microscopy / methods*
Cytoplasm / ultrastructure
Tomography / methods*

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