Membrane filter procedure for enumeration of Vibrio parahaemolyticus
- 1 November 1976
- journal article
- research article
- Published by American Society for Microbiology in Applied and Environmental Microbiology
- Vol. 32 (5), 679-684
- https://doi.org/10.1128/aem.32.5.679-684.1976
Abstract
A membrane filtration procedure has been developed for the enumeration of Vibrio parahaemolyticus in marine waters. Background microbial growth on the primary medium was decreased through the use of sodium cholate and copper sulfate, high pH, 3% NaCl, and an elevated incubation temperature. A series of in situ tests was employed to obviate the picking of colonies for identification; thereby, the enumeration of V. parahaemolyticus was accomplished within 30 h. Confirmation of typical colonies approached 95%. Relative to immediate plating on brain heart infusion agar spread plates, the recovery of V. parahaemolyticus cells suspended in phosphate-buffered saline or in seawater held for 24 h at 4 to 6 degrees C was about 90%. Assay variability did not exceed that expected by chance. Recoveries of V. parahaemolyticus from coastal and estuarine surface waters exceeded those obtainable by other methods examined.This publication has 17 references indexed in Scilit:
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