<i>PSEUDOMONAS AUREOFACIENS</i> KLUYVER AND PHENAZINE α-CARBOXYLIC ACID, ITS CHARACTERISTIC PIGMENT

Abstract

Heretofore three species of bacteria have been known to form phenazine pigments. Two of them are well established members of the genus Pseudomonas. One is P. aeruginosa, which produces pyocyanine (I) (Jensen and Holten, 1949); the other is P. chlororaphis, its pigment, chlororaphine, being a reduced form of oxychlororaphine (II) (Dufraisse, Etienne and Toromanoff, 1952). The third microorganism capable of producing a phenazine pigment was originally designated Chromobacterium iodinum by Davis (1939). Tobie (1939) suggested that this microorganism belonged to the genus Pseudomonas because of its production of the phenazine pigment iodinin (III) (Clemo and Daglish, 1950; Kiprianov, Serebryanyi and Chernetskii, 1952).