|
|
||||||||
1 Department of Microbiology, Miami University, Oxford, OH 45056, USA
2 Department of Zoology and Miami University Electron Microscopy Facility, Miami University, Oxford, OH 45056, USA
Correspondence
Mitchell F. Balish
BalishMF{at}MUOhio.edu
Despite their small size and reduced genomes, many mycoplasma cells have complex structures involved in virulence. Mycoplasma pneumoniae has served as a model for the study of virulence factors of a variety of mycoplasma species that cause disease in humans and animals. These cells feature an attachment organelle, which mediates cytadherence and gliding motility and is required for virulence. An essential component of the architecture of the attachment organelle is an internal detergent-insoluble structure, the electron-dense core. Little information is known regarding its underlying mechanisms. Mycoplasma amphoriforme, a close relative of both M. pneumoniae and the avian pathogen Mycoplasma gallisepticum, is a recently discovered organism associated with chronic bronchitis in immunosuppressed individuals. This work describes both the ultrastructure of M. amphoriforme strain A39T as visualized by scanning electron microscopy and the gliding motility characteristics of this organism on glass. Though externally resembling M. gallisepticum, M. amphoriforme cells were found to have a Triton X-100-insoluble structure similar to the M. pneumoniae electron-dense core but with different dimensions. M. amphoriforme also exhibited gliding motility using time-lapse microcinematography; its movement was slower than that of either M. pneumoniae or M. gallisepticum.
This article has been cited by other articles:
![]() |
D. Nakane and M. Miyata Cytoskeletal Asymmetrical Dumbbell Structure of a Gliding Mycoplasma, Mycoplasma gallisepticum, Revealed by Negative-Staining Electron Microscopy J. Bacteriol., May 15, 2009; 191(10): 3256 - 3264. [Abstract] [Full Text] [PDF] |
||||
![]() |
J. M. Hatchel and M. F. Balish Attachment organelle ultrastructure correlates with phylogeny, not gliding motility properties, in Mycoplasma pneumoniae relatives Microbiology, January 1, 2008; 154(1): 286 - 295. [Abstract] [Full Text] [PDF] |
||||
![]() |
B. M. Hasselbring, C. A. Page, E. S. Sheppard, and D. C. Krause Transposon Mutagenesis Identifies Genes Associated with Mycoplasma pneumoniae Gliding Motility. J. Bacteriol., September 1, 2006; 188(17): 6335 - 6345. [Abstract] [Full Text] [PDF] |
||||
| HOME | HELP | FEEDBACK | SUBSCRIPTIONS | ARCHIVE | SEARCH | TABLE OF CONTENTS |
| INT J SYST EVOL MICROBIOL | MICROBIOLOGY | J GEN VIROL |
| J MED MICROBIOL | ALL SGM JOURNALS | |