f Species Differentiation of Human Vaginal Lactobacilli
- Authors: M. ROGOSA, M. ELISABETH SHARPE
- Microbiology, August 1960 23: 197-201, doi: 10.1099/00221287-23-1-197
- Subject: Article
- Published Online:
SUMMARY: The designation ‘Döderlein's bacillus’ for human vaginal strains of the genus Lactobacillus is vague and unsatisfactory. Thirty-five strains of lactobacilli from twenty-one normal non-pregnant women aged 21–40 were isolated; c. 25% were heterofermentative. Of 21 isolates studied in detail, 14 were L. acidophilus and two were L. casei var. rhamnosus (Rogosa et al. 1953). The heterofermentative species comprised four strains of L. fermenti and one of L. cellobiosus (Rogosa et al. 1953). Glycogen fermentation, which was found only in certain strains of L. acidophilus, was a variable characteristic. In addition, Leuconostoc mesenteroides, which on examination of smears can be confused with short rod forms, was also isolated.
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