L-Arginine Utilization by Pseudomonas Species

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Abstract
The utilization of arginine was studied in several different Pseudomonas spp. The arginine decarboxylase and agmatine deiminase pathways were characteristic of Pseudomonas spp. of group I as defined by Palleroni et al. (1974). P. putida strains had 3 distinct arginine catabolic pathways initiated by arginine decarboxylase, arginine deiminase and arginine oxidase, respectively. The 2 former routes were also present in P. fluorescens and P. mendocina, and in P. aeruginosa which also used arginine by a further unknown pathway. None of these pathways occurred in P. cepacia strains; agmatine catabolism seemed to follow an unusual route involving guanidinobutyrate as intermediate.