15. Nitrate reduction test can be used to differentiate bet…
15. Nitrate reduction test can be used to differentiate between Pseudomonads and the Enterobacteriaceae. You innoculated your Nitrate broth with your unknown; after incubation you added 5 drops of reagent A and 5 drops of reagent B. You observed a Red color within 2 minutes. Is this a + or a – reaction?