A significant number of Gram negative bacilli are isolated f…

A significant number of Gram negative bacilli are isolated from the urine of an otherwise healthy 23 year-old woman. The results of the biochemical analysis demonstrate: Phenylalanine deaminase = green after addition of FeCl3 Indole = red ring after Kovac’s Methyl red = red Voges-Proskauer = colorless Arginine dihydrolase = yellow Lysine decarboxylase = yellow Ornithine decarboxylase = yellow Decarboxylase base = yellow TSI = yellow slant, black butt The most likely genus and species of this organism is: