%0 Journal Article %A Shtibel, Rosa %T Auxotypes of Neisseria Gonorrhoeae in Toronto: Relationship to Penicillin Resistance and to Sex of Patient %D 1985 %J Journal of Medical Microbiology, %V 20 %N 2 %P 197-196 %@ 1473-5644 %R https://doi.org/10.1099/00222615-20-2-197 %I Microbiology Society, %X Summary The relationship of auxotype to penicillinase production, penicillin susceptibility, and sex of the patient, has been studied in 8446 non-penicillinase-producing and 153 penicillinase-producing Neisseria gonorrhoeae (PPNG) strains isolated during 1980-1983 in Toronto. Proline-requiring types constituted 51% of the PPNG and 13% of the non-PPNG strains; ornithine-requiring types constituted only 4% of the PPNG compared with 12% of the non-PPNG isolates. The various auxotypes of the non-PPNG isolates showed marked differences in their degree of resistance to penicillin; and the proportions of each auxotype from male and female patients were dissimilar. %U https://www.microbiologyresearch.org/content/journal/jmm/10.1099/00222615-20-2-197