Bacterial capsules: no barrier against Bdellovibrio-Reference-Cited by-同舟云学术

Bacterial capsules: no barrier against Bdellovibrio

Published:1997-03-01 Issue:3 Volume:143 Page:749-753
ISSN:1350-0872
Container-title:Microbiology
language:en
Short-container-title:

Author:

Koval Susan F.¹,Bayer Manfred E.²

Affiliation:

1. Department of Microbiology and Immunology University of Western Ontario London, ON N6A 5C1 Canada

2. Fox Chase Cancer Center Institute for Cancer Research 7701 Burholme Avenue, Philadelphia, PA 19111 USA

Abstract

Bdellovibrio bacteriovorus 109J attached to both capsulated and noncapsulated Escherichia coli K29 cells. Electron microscopy revealed penetration of the thick polysaccharide capsule without any major disintegration of the neighbouring capsular matrix. The capsule remained intact during bdelloplast formation and lysis was unaffected by capsulation of the prey cell. This study shows that, in contrast to its effect on bacteriophage penetration and its protective activities against immune defence mechanisms, the capsule of E. coli does not serve as a barrier against invasion by B. bacteriovorus.

Publisher

Microbiology Society

Subject

Microbiology

Reference12 articles.

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3. Penetration of the polysaccharide capsule of Escherichia coli (Bil 62/42) by bacteriophage K29.;Bayer;Virology,1979

4. Capsule of Escherichia coli K29: ultrastructural preservation and immuno- electron microscopy.;Bayer;J Bacteriol,1985

5. Genus Bdellovibrio Stolp and Starr 1963, 243AL.;Burnham,1984

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