RT Journal Article SR Electronic(1) A1 GRIMONT, PATRICK A. D. A1 GRIMONT, FRANCINE A1 STARR, MORTIMER P.YR 1978 T1 Serratia proteamaculans (Paine and Stansfield) comb. nov., a Senior Subjective Synonym of Serratia liquefaciens (Grimes and Hennerty) Bascomb et al. JF International Journal of Systematic and Evolutionary Microbiology, VO 28 IS 4 SP 503 OP 510 DO https://doi.org/10.1099/00207713-28-4-503 PB Microbiology Society, SN 1466-5034, AB In 1919, Paine and Stansfield attributed a leaf-spot disease of the tropical plant Protea cynaroides to Pseudomonas proteamaculans. This organism, placed at various times in the genera Xanthomonas, Erwinia, and Enterobacter and now known as Erwinia proteamaculans (Paine and Stansfield 1919) Dye 1966, is listed in the first (1976) draft of the Approved List of Bacterial Names. We demonstrate here—on the basis of biochemical properties, polynucleotide sequence relatedness, and pathobiological capacity—the identity of (i) the only strain (ATCC 19323 = Dye ZL1 = ICPB XP176 = NCPPB 245; here designated as the type strain of P. proteamaculans) of E. proteamaculans still extant from the Paine and Stansfield study with (ii) Serratia liquefaciens biotype C1c. Based on the results of our study, we recommend the transfer of E. proteamaculans to the genus Serratia. Serratia proteamaculans (Paine and Stansfield 1919) comb. nov. is to be regarded as a senior subjective synonym of S. liquefaciens (Grimes and Hennerty 1931) Bascomb et al. 1971., UL https://www.microbiologyresearch.org/content/journal/ijsem/10.1099/00207713-28-4-503