Biomedical subjects

B F Hammond

Publications and source records attributed to B F Hammond.

46 records · Page 3Linked to original sources

PubMed1971

Intracellular polysaccharide production by human oral strains of Lactobacillus casei.

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Amylases↗

PubMed1970

Isolation and serological characterization of a cell wall antigen of Rothia dentocariosa.

A soluble polysaccharide antigen from the cell wall of Rothia dentocariosa ATCC 17931 has been isolated, purified and characterized by serological and chemical procedures. The polysaccharide (RPS) was found to be located at the surface of cells grown under diverse environmental conditions, and could be easily detected on cells in pure culture or in clinical samples from humans and experimentally infected hamsters by fluorescent-antibody techniques. Fructose, glucose, galactose, and ribose were the major constituents of RPS. Although purified RPS was not immunogenic in rabbits, it was presumed to be a major antigen of the cell because it could specifically absorb approximately one-third of the antibody nitrogen in antisera prepared against whole cells of R. dentocariosa. Haptene inhibition studies indicated that fructose was the principal determinant of serological specificity in RPS. This polysaccharide was found to be serologically unique and did not cross-react with the polysaccharides and surface polymers of other oral actinomycetes and filamentous organisms.

Actinomycetales↗

PubMed1970

Deoxyribonucleic acid base composition of Rothia dentocariosa as determined by thermal denaturation.

The moles per cent guanine plus cytosine (GC) of 10 filamentous strains of Rothia dentocariosa ranged from 65.4 to 69.7. Major differences were not observed in the base composition of a filamentous form (69.7 moles% GC) and its coccal variant (68.0 moles% GC).

Actinomycetales↗

PubMed1969