A further Characterization of Yersinia ruckeri (Enteric Redmouth Bacterium)

Seventeen cultures of Enteric Redmouth Bacterium were examined biochemically at selected temperatures. Incubation temperature altered the motility of the bacterium. At 9°C nonfunctional peritrichous flagella were produced, while at 18, 22, and 27°C the bacterium was motile. The cells were nonmotile at 37°C due to a lack of flagellar production. The percent guanine plus cytosine was determined to be 47.95±0.45 (P=0.05). This work supports the proposal of Yersinia ruckeri as the genus and species designation of the Entric Redmouth Bacterium.