[Specific activity of colored variants of N. meningitidis colonies].
The character of fluorescence of the colonies formed by serogroup A meningococci (229 strains) in oblique light and their activity in the agglutination test with group specific S and RD antisera to the meningococcal dissociant of the same serogroup were studied. Orange and orange-green colonies were found to have pronounced group-specific activity, and faint gray colonies changed the character of their agglutination with the group-specific antiserum up to the loss of agglutinability; and simultaneously their capacity for agglutination with the antiserum to the dissociant was revealed. The study of the character of fluorescence and the group-specific activity of meningococcal colonies belonging to other serogroups provided similar results.
D003116:Color; D009305:Nasopharynx / Q000382:microbiology; D009345:Neisseria meningitidis / Q000145:classification / Q000502:physiology*; D012703:Serotyping; D013045:Species Specificity
Spetsificheskaia aktivnost' tsvetnykh variantov koloniĭ N. meningitidis.