Abstract
Nonpigmented cultures of Chromobacterium violaceum have been found to be similar to pigmented cultures in their virulence for mice and the pathology of their infections. Clinicians and microbiologists should be prepared to consider nonpigmented C. violaceum in their differential diagnoses of infections caused by gram-negative bacteria. The laboratorian who is not aware of this possibility is likely to erroneously identify nonpigmented strains of C. violaceum as members of closely associated genera, particularly Aeromonas. It is known that violet pigmentation is not an essential feature or an exclusive character of the genus Chromobacterium. This study has also shown that pigmentation of C. violaceum is not related to its pathogenicity or to the pathology of its infections.
Full text
PDF
Selected References
These references are in PubMed. This may not be the complete list of references from this article.
- Clark W. A. A simplified Leifson flagella stain. J Clin Microbiol. 1976 Jun;3(6):632–634. doi: 10.1128/jcm.3.6.632-634.1976. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Gauthier M. J. Morphological, physiological, and biochemical characteristics of some violet-pigmented bacteria isolated from seawater. Can J Microbiol. 1976 Feb;22(2):138–149. doi: 10.1139/m76-019. [DOI] [PubMed] [Google Scholar]
- HUGH R., LEIFSON E. The taxonomic significance of fermentative versus oxidative metabolism of carbohydrates by various gram negative bacteria. J Bacteriol. 1953 Jul;66(1):24–26. doi: 10.1128/jb.66.1.24-26.1953. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Johnson W. M., DiSalvo A. F., Steuer R. R. Fatal Chromobacterium violaceum septicemia. Am J Clin Pathol. 1971 Sep;56(3):400–406. doi: 10.1093/ajcp/56.3.400. [DOI] [PubMed] [Google Scholar]
- Macnab R. M. Examination of bacterial flagellation by dark-field microscopy. J Clin Microbiol. 1976 Sep;4(3):258–265. doi: 10.1128/jcm.4.3.258-265.1976. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Ognibene A. J., Thomas E. Fatal infection due to Chromobacterium violaceum in Vietnam. Am J Clin Pathol. 1970 Oct;54(4):607–610. doi: 10.1093/ajcp/54.4.607. [DOI] [PubMed] [Google Scholar]
- SNEATH P. H., BUCKLAND F. E. The serology and pathogenicity of the genus Chromobacterium. J Gen Microbiol. 1959 Apr;20(2):414–425. doi: 10.1099/00221287-20-2-414. [DOI] [PubMed] [Google Scholar]
- SNEATH P. H., WHELAN J. P., BHAGWAN SINGH R., EDWARDS D. Fatal infection by Chromobacterium violaceum. Lancet. 1953 Aug 8;265(6780):276–277. doi: 10.1016/s0140-6736(53)91132-5. [DOI] [PubMed] [Google Scholar]
- Sivendra R., Lo H. S. Identification of Chromobacterium violaceum: pigmented and non-pigmented strains. J Gen Microbiol. 1975 Sep;90(1):21–31. doi: 10.1099/00221287-90-1-21. [DOI] [PubMed] [Google Scholar]
- Sivendra R., Lo H. S., Lim K. T. Letter: Carbohydrate fermentation, KIA, and TSI agar reactions of Chromobacterium violaceum. Am J Clin Pathol. 1975 Sep;64(3):421–422. doi: 10.1093/ajcp/64.3.421. [DOI] [PubMed] [Google Scholar]
- Sivendra R. Unusual Chromobacterium violaceum: aerogenic strains. J Clin Microbiol. 1976 Jan;3(1):70–71. doi: 10.1128/jcm.3.1.70-71.1976. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Victorica B., Baer H., Ayoub E. M. Successful treatment of systemic Chromobacterium violaceum infection. JAMA. 1974 Oct 28;230(4):578–580. [PubMed] [Google Scholar]