Abstract
A total of 189 of Enterobacteriaceae and three strains of Clostridium perfringens were tested with a new incubation-type indole paper strip. This 4-hr incubation test gave the same results as a standard 48-hr indole test, except with some strains of Proteus rettgeri. Results with P. rettgeri varied somewhat according to the medium upon which the organisms had been grown.
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Selected References
These references are in PubMed. This may not be the complete list of references from this article.
- Matsen J. M., Sherris J. C. Comparative study of the efficacy of seven paper-reagent strips and conventional biochemical tests in identifying gram-negative organisms. Appl Microbiol. 1969 Sep;18(3):452–457. doi: 10.1128/am.18.3.452-457.1969. [DOI] [PMC free article] [PubMed] [Google Scholar]