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Appl Environ Microbiol. 1989 June; 55(6): 1414-1419
Copyright © 1989, American Society for Microbiology. All Rights Reserved.

Isolation and Ultrastructure of the Flagella of Methanococcus thermolithotrophicus and Methanospirillum hungatei

Diana Cruden*, Richard Sparling and A. J. Markovetz

Department of Microbiology, University of Iowa, Iowa City, Iowa 52242

ABSTRACT

The flagella of the archaebacteria Methanococcus thermolithotrophicus and Methanospirillum hungatei enter the cells in regions with ultrastructure resembling that of the polar organelles found in a variety of eubacteria. Flagella of both organisms consist of a filament, a hook, and a basal body with two rings similar to those of gram-positive eubacteria. The integrity of the flagella of M. thermolithotrophicus is lost in the absence of high salt concentrations, and those of both organisms are unstable at high pH. The flagellar filaments of M. hungatei are composed of two flagellins of 24 and 26 kilodaltons.

FOOTNOTES

* Corresponding author.

Appl Environ Microbiol. 1989 June; 55(6): 1414-1419
Copyright © 1989, American Society for Microbiology. All Rights Reserved.



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Copyright © 1989 by the American Society for Microbiology. All rights reserved.