Autor: |
Devine, Leonard F., Rhode, Solon L., Hagerman, Cline R. |
Zdroj: |
Infection and Immunity; January 1972, Vol. 5 Issue: 1 p48-54, 7p |
Abstrakt: |
Meningococci isolated in primary cultures from nasopharyngeal carriers occasionally consisted of mixtures of smooth (S) and rough (R) strains. The R strains were separated from the S strains and their morphological and serological characteristics were studied. Some of these R strains reverted spontaneously to S strains which subsequently produced group-specific polysaccharide. Several R strains, grown in the presence of deoxyribonucleic acid from either an R strain of known parentage or an S strain, formed recombinants with serological group specificity. |
Databáze: |
Supplemental Index |
Externí odkaz: |
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