Detection of Vibrio parahaemolyticus by Dot- ELISA
ZANG Hong-mei, FAN Jing-feng, WANG Bin
1. School of Life Science and Technology,Dalian Fisheries Univ. , Dalian 116023, China; 2. National Marine Environmental Monitoring Center, Dalian 116023, China
Abstract: A Dot-Enzyme Linked Immunosorbent Assay (Dot-ELISA) was established for detection of Vibrio parahaemolyticus. The working concentration of serum samples was 1: 200 dilution and that of the enzyme - labeled goat anti -rabbit IgG was 1:100 dilution by chessboard assay. The samples with clear and obvious dots were judged as positive reaction. V. parahaemolyticus was positive in the Dot-ELISA, while V. harveyi, Aeromonas hydrophila , V. fluvialis biotype , V. alginolyticus and Escherichia coli were negative in the assay. Dot - ELISA was characterized by rapid reaction, economical feasibility, and observable results and widely adopted.