Abstract
As the result of studies on Pseudomonas and Serratia, the author concludes as follows:
(1) Some of them have oxidative activities, but they are very low as compared with Aceto-bacter and Gluconobacter.
(2) Their activities are very variable and often disappear. This sugests that these are not so constitutive as that of Acetobacter and Gluconobacter.
(3) Their biological characteristics are very different from Acetobacter and Gluconobacter, these are easily detectable.
(4) It is better to call them as “Pseudooxidative bacteria” when their oxidative characteristics are discussed.
