A Selective Medium and a Specific Probe for Detection of Vibrio vulnificus
AUTOR(ES)
Cerdà-Cuéllar, Marta
FONTE
American Society for Microbiology
RESUMO
A selective medium (VVM) and a specific 16S rRNA gene (rDNA) probe (V3VV) for the detection of Vibrio vulnificus were developed. The medium contains d-(+)-cellobiose as the main carbon source and electrolytes (MgCl2-6H2O and KCl), which stimulate bacterial growth. Polymyxin B, colistin, and moderate alkalinity and salinity provide selectivity properties. V. vulnificus grows on VVM as flat, bright yellow colonies. Other Vibrio species tested either did not grow or showed green-bluish colonies, with the exception of V. campbelli, V. carchariae, and V. navarrensis. There is a higher colony count on VVM agar than on cellobiose-colistin agar or on modified cellobiose-polymyxin B-colistin agar. The specific probe was evaluated by colony hybridization and dot blot hybridization with PCR-amplified 16S rDNA using collection strains and environmental isolates. No strain studied other than V. vulnificus showed positive hybridization with this oligonucleotide. The combined use of VVM agar and the V3VV probe provided the recovery of V. vulnificus from mixed bacterial suspensions and spiked mussels.
ACESSO AO ARTIGO
http://www.pubmedcentral.nih.gov/articlerender.fcgi?artid=91910Documentos Relacionados
- New selective and differential medium for Vibrio cholerae and Vibrio vulnificus.
- New Selective and Differential Medium for Vibrio cholerae and Vibrio vulnificus
- New selective plating medium for isolation of Vibrio vulnificus biogroup 1.
- Identification of Vibrio proteolyticus with a differential medium and a specific probe.
- A selective and differential medium for Vibrio harveyi.