Affiliation:
1. Department of Infectious and Tropical Diseases, London School of Hygiene and Tropical Medicine, University of London, London WC1E 7HT, United Kingdom
Abstract
ABSTRACT
Recently, we reported that
Campylobacter jejuni
, an important gastrointestinal pathogen, has the genetic determinants to produce a capsular polysaccharide (Karlyshev et al., Mol. Microbiol. 35:529–541, 2000). Despite these data, the presence of a capsule in these bacteria has remained controversial. In this study we stain
C. jejuni
cells with the cationic dye Alcian blue and demonstrate for the first time by electron microscopy that
C. jejuni
cells produce a polysaccharide capsule that is retained in the coccoid form but is absent in a
kpsM
mutant.
Publisher
American Society for Microbiology
Subject
Infectious Diseases,Immunology,Microbiology,Parasitology
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