Characterization of Pediococcus pentosaceus and Pediococcus acidilactici Strains and Replacement of the Type Strain of P. acidilactici with the Proposed Neotype DSM 20284
Levels of DNA relatedness were determined for 16 strains of Pediococcus pentosaceus and Pediococcus acidilactici, and two distinct groups were recognized. The DNA base compositions of the members of one group ranged from 37.4 to 38.7 mol% guanine plus cytosine and the DNA base compositions of the members of the other group ranged from 42.7 to 43.5 mol% guanine plus cytosine. The phenotypic characteristics after growth at 50°C and acid production from maltose correlated with the levels of DNA relatedness and DNA base compositions. Strains in the first group exhibited high levels of DNA relatedness to the type strain of P. pentosaceus and were identified as P. pentosaceus strains. Strains in the second group exhibited high levels of DNA relatedness to authentic reference strains of P. acidilactici but did not exhibit relatedness to P. acidilactici JCM 5885T(= NCDO 1859T) (T = type strain). The taxonomic standing of the type strain of P. acidilactici was examined, and strains in the second group were identified as P. acidilactici. In addition, we request the replacement of the type strain P. acidilactici with the proposed neotype DSM 20284 (= JCM 8797 = NRIC 0115).
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Characterization of Pediococcus pentosaceus and Pediococcus acidilactici Strains and Replacement of the Type Strain of P. acidilactici with the Proposed Neotype DSM 20284