Identification of a Subspecies-Specific Capsular Antigen from Bacteroides melaninogenicus Subspecies asaccharolyticus by Immunofluorescence and Electron Microscopy
- 1 December 1978
- journal article
- research article
- Published by Oxford University Press (OUP) in The Journal of Infectious Diseases
- Vol. 138 (6), 736-741
- https://doi.org/10.1093/infdis/138.6.736
Abstract
An indirect fluorescent antibody test was developed with the use of hyperimmune rabbit antiserum to a purified capsular polysaccharide of Bacteroides melaninogenicus subspecies asaccharolyticus. All of 23 strains of B. melaninogenicus subspecies asaccharolyticus were fluorescence-positive in this test. All II strains of Bacteroides melaninogenicus subspecies intermedius tested and three strains of Bacteroides melaninogenicus subspecies melaninogenicus were fluorescence-negative. Thirty-one strains of other bacterial species were also fluorescence-negative. The indirect fluorescent antibody test demonstrated the presence of a subspecies-specific capsular antigen from B. melaninogenicus subspecies asaccharolyticus. The capsular antigen was further demonstrated by electron microscopy with ruthenium red, a polysaccharide-staining material.Keywords
This publication has 4 references indexed in Scilit:
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- Report of the ICSB Taxonomic Subcommittee on Gram-Negative Anaerobic Rods: Proposal That the Saccharolytic and Asaccharolytic Strains at Present Classified in the Species Bacteroides melaninogenicus (Oliver and Wherry) Be Reclassified in Two Species as Bacteroides melaninogenicus and Bacteroides asaccharolyticusInternational Journal of Systematic and Evolutionary Microbiology, 1977
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