Taxonomy of Marine Pseudomonas Species: P. stanieri sp. nov.; P. perfectomarina sp. nov., nom. rev.; P. nautica: and P. doudoroffii

Recent studies of the evolutionary relationships of nonfermentative, gram-negative, rod-shaped, polarly flagellated, marine bacteria have indicated that some are members of the lineage which includes the type species of the genus Pseudomonas, Pseudomonas aeruginosa. As a result of these findings, one species equivalent (group G-l) with a guanine plus cytosine content slightly beyond the lower limit proposed for Pseudomonas is now included in this genus under the designation Pseudomonas stanieri sp. nov. (type strain 146 = ATCC 27130). In addition, “Pseudomonas perfectomarinus,” an organism not included in the Approved List of Bacterial Names, is a recognizable species and part of this lineage. This name has, therefore, been revived and corrected to Pseudomonas perfectomarina sp. nov., nom. rev. (type strain 218 = ATCC 14405). The phenotypes of these two species and their type strains are described along with those for two other marine Pseudomonas, Pseudomonas nautica and Pseudomonas doudoroffii.