Polynucleobacter necessarius

Polynucleobacter necessarius is a bacterium of the genus Polynucleobacter. Since the last revision of the species,[2] it contains exclusively obligate endosymbionts dwelling in cells of the ciliate Euplotes aediculatus and related species. This is in contrast to other species of the genus Polynucleobacter, which exclusively harbour free-living bacteria dwelling in the water column of freshwater systems (lake, ponds, puddles and running waters). The genome of P. necessarius has been completely sequenced.[3][4][5]

Polynucleobacter necessarius
Scientific classification
P. necessarius
Binomial name
Polynucleobacter necessarius
Heckmann and Schmidt 1987[1]

See alsoEdit


  1. ^ List of Prokaryotic names with Standing in Nomenclature
  2. ^ Hahn M. W., Schmidt J., Pitt A., Taipale S. J., Lang E. (2016). Reclassification of four Polynucleobacter necessarius strains as Polynucleobacter asymbioticus comb. nov., Polynucleobacter duraquae sp. nov., Polynucleobacter yangtzensis sp. nov., and Polynucleobacter sinensis sp. nov., and emended description of the species Polynucleobacter necessarius. Int. J. Syst. Evol. Microbiol. 66: 2883–2892.
  3. ^ SIGS Standards in Genomic Sciences
  4. ^ Meincke, L; Copeland, A; Lapidus, A; Lucas, S; Berry, KW; Del Rio, TG; Hammon, N; Dalin, E; Tice, H; Pitluck, S; Richardson, P; Bruce, D; Goodwin, L; Han, C; Tapia, R; Detter, JC; Schmutz, J; Brettin, T; Larimer, F; Land, M; Hauser, L; Kyrpides, NC; Ivanova, N; Göker, M; Woyke, T; Wu, QL; Pöckl, M; Hahn, MW; Klenk, HP (2012). "Complete genome sequence of Polynucleobacter necessarius subsp. asymbioticus type strain (QLW-P1DMWA-1(T))". Stand Genomic Sci. 6 (1): 74–83. doi:10.4056/sigs.2395367. PMC 3368402. PMID 22675600.
  5. ^ EzBioCloud