Abstract
A new plating medium (VV agar) has been developed as an alternative to thiosulfate-citrate-bile salts-sucrose (TCBS) agar for the isolation of Vibrio vulnificus. Salicin (2% wt/vol) is employed as the source of carbohydrate, with potassium tellurite (0.0005% wt/vol), crystal violet (0.00015% wt/vol), oxgall (0.8% wt/vol), and a pH of 8.6 to inhibit growth of gram-positive and gram-negative organisms other than V. vulnificus. Because strains of V. vulnificus do not strongly ferment salicin in VV agar, a pH indicator has not been included in the medium. Growth of V. vulnificus appears on VV agar as large grey colonies with black centers. Other non-Vibrio strains which grow on the medium produce smaller colonies and fail to take up tellurite. VV agar has proved to be more effective than TCBS agar in inhibiting members of the Enterobacteriaceae as well as gram-positive cocci. Only Vibrio strains capable of utilizing salicin grow well on VV agar. Recovery and growth of V. vulnificus are superior on VV agar, compared with TCBS agar.
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- Blake P. A., Merson M. H., Weaver R. E., Hollis D. G., Heublein P. C. Disease caused by a marine Vibrio. Clinical characteristics and epidemiology. N Engl J Med. 1979 Jan 4;300(1):1–5. doi: 10.1056/NEJM197901043000101. [DOI] [PubMed] [Google Scholar]
- Blake P. A., Weaver R. E., Hollis D. G. Diseases of humans (other than cholera) caused by vibrios. Annu Rev Microbiol. 1980;34:341–367. doi: 10.1146/annurev.mi.34.100180.002013. [DOI] [PubMed] [Google Scholar]
- Castillo L. E., Winslow D. L., Pankey G. A. Wound infection and septic shock due to Vibrio vulnificus. Am J Trop Med Hyg. 1981 Jul;30(4):844–848. doi: 10.4269/ajtmh.1981.30.844. [DOI] [PubMed] [Google Scholar]
- Hollis D. G., Weaver R. E., Baker C. N., Thornsberry C. Halophilic Vibrio species isolated from blood cultures. J Clin Microbiol. 1976 Apr;3(4):425–431. doi: 10.1128/jcm.3.4.425-431.1976. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Kelly M. T., Avery D. M. Lactose-positive Vibrio in seawater: a cause of pneumonia and septicemia in a drowning victim. J Clin Microbiol. 1980 Mar;11(3):278–280. doi: 10.1128/jcm.11.3.278-280.1980. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Kelly M. T. Effect of temperature and salinity on Vibrio (Beneckea) vulnificus occurrence in a Gulf Coast environment. Appl Environ Microbiol. 1982 Oct;44(4):820–824. doi: 10.1128/aem.44.4.820-824.1982. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Kelly M. T., McCormick W. F. Acute bacterial myositis caused by Vibrio vulnificus. JAMA. 1981 Jul 3;246(1):72–73. [PubMed] [Google Scholar]
- Leifson E. Motile marine bacteria. IV. Ionic relationships of marine and terrestrial bacteria. Zentralbl Bakteriol Parasitenkd Infektionskr Hyg. 1970;125(2):170–206. [PubMed] [Google Scholar]
- MONSUR K. A. A highly selective gelatin-taurocholate-tellurite medium for the isolation of Vibrio cholerae. Trans R Soc Trop Med Hyg. 1961 Sep;55:440–442. doi: 10.1016/0035-9203(61)90090-6. [DOI] [PubMed] [Google Scholar]
- Nicholls K. M., Lee J. V., Donovan T. J. An evaluation of commercial thiosulphate citrate bile salt sucrose agar (TCBS). J Appl Bacteriol. 1976 Oct;41(2):265–269. doi: 10.1111/j.1365-2672.1976.tb00629.x. [DOI] [PubMed] [Google Scholar]
- Oliver J. D., Warner R. A., Cleland D. R. Distribution and ecology of Vibrio vulnificus and other lactose-fermenting marine vibrios in coastal waters of the southeastern United States. Appl Environ Microbiol. 1982 Dec;44(6):1404–1414. doi: 10.1128/aem.44.6.1404-1414.1982. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Taylor J. A., Barrow G. I. A non-pathogenic vibrio for the routine quality control of TCBS cholera medium. J Clin Pathol. 1981 Feb;34(2):208–212. doi: 10.1136/jcp.34.2.208. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Tison D. L., Nishibuchi M., Greenwood J. D., Seidler R. J. Vibrio vulnificus biogroup 2: new biogroup pathogenic for eels. Appl Environ Microbiol. 1982 Sep;44(3):640–646. doi: 10.1128/aem.44.3.640-646.1982. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Umesaki Y., Kawai Y., Mutai M. Effect of Tween 80 on glucosyltransferase production in Streptococcus mutans. Appl Environ Microbiol. 1977 Aug;34(2):115–119. doi: 10.1128/aem.34.2.115-119.1977. [DOI] [PMC free article] [PubMed] [Google Scholar]
- West P. A., Russek E., Brayton P. R., Colwell R. R. Statistical evaluation of a quality control method for isolation of pathogenic Vibrio species on selected thiosulfate-citrate-bile salts-sucrose agars. J Clin Microbiol. 1982 Dec;16(6):1110–1116. doi: 10.1128/jcm.16.6.1110-1116.1982. [DOI] [PMC free article] [PubMed] [Google Scholar]

