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Summary. Morphological, cultural and biochemical properties of 35 isolates of rod shaped Gram negative, yellow pigmented anaerogenic, fermentative bacteria were compared. The isolates comprised named cultures of Bacterium herbicola, Erwinia lathyri, E. ananas, E. milletiae, E. uredovora and B. typhi flavum, as well as organisms isolated from deer and man which were considered to be related to E. milletiae. The results showed that the organisms were indistinguishable from one another on the basis of the tests employed, and it is concluded that B. herbicola, B. typhi flavum, E. lathyri and E. ananas should be classified as Erwinia herbicola (Duggeli) Dye. Since there was insufficient information regarding the plant pathogenicity of E. milletiae and E. uredovora, it is suggested that they should remain separate species at present. The relationship of this group of organisms to certain coliforms and to flavobacteria is briefly discussed. |
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