%0 Journal Article %A BRENNER, DON J. %A STEIGERWALT, A. G. %A MIKLOS, G. V. %A FANNING, G. R. %T Deoxyribonucleic Acid Relatedness Among Erwiniae and Other Enterobacteriaceae: the Soft-Rot Organisms (Genus Pectobacterium Waldee) %D 1973 %J International Journal of Systematic and Evolutionary Microbiology, %V 23 %N 3 %P 205-216 %@ 1466-5034 %R https://doi.org/10.1099/00207713-23-3-205 %I Microbiology Society, %X Relatedness among soft-rot-producing organisms of the genus Pectobacterium Waldee was assessed by means of interspecific deoxyribonucleic acid reassoci-ation followed by chromatography on hydroxyapatite. Relatedness was also determined between pectobacteria and representatives from all other established genera of the family Enterobacteriaceae. The results indicate five distinct groups of pectobacteria: (i) Pectobacterium carotovorum (Jones) Waldee, including Erwinia aroideae (Townsend) Holland, E. atroseptica (van Hall) Jennison, E. solanisapra (Harrison) Holland, and Bacillus oleraceae Harrison; (ii) P. carnegieana (Lightle et al.) comb, nov.; (iii) cornstalk-rot bacterium and P. chrysanthemi (Burkholder et al.) comb. nov. (including E. dieffenbachiae McFadden, E. cytolytica Chester, and P. carotovorum f. sp. parthenii); (iv) P. cypripedii (Hori) comb, nov.; and (v) P. rhapontici (Millard) Patel and Kulkarni. Relatedness between groups of pectobacteria is 20 to 50% except between the P. carotovorum group and strains of P. carnegieana, which exhibit 60 to 70% relatedness. With few exceptions, the pectobacteria are 20 to 50% related to other members of the family Enterobacteriaceae. The data presented support the inclusion of pectobacteria in the family Enterobacteriaceae. %U https://www.microbiologyresearch.org/content/journal/ijsem/10.1099/00207713-23-3-205