Polynucleobacter necessarius
| Polynucleobacter necessarius | |
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| Species: | P. necessarius
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| Binomial name | |
| Polynucleobacter necessarius Heckmann and Schmidt 1987[1]
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Omicron or Omikron | |
Polynucleobacter necessarius is a bacterium of the genus Polynucleobacter.
Bacteria
[edit]These bacteria were discovered by the German microbiologist Klaus Heckmann in the cytoplasm of the ciliate Euplotes aediculatus and designated as Omikron (Omicron in English literature).[2] In 1987 Omikron / Omicron was scientifically described by Klaus Heckmann and Helmut Schmidt as the new species (and genus) Polynucleobacter necessarius.[3] Later free-living Polynucleobacter bacteria were discovered in the water columns of lakes and ponds. These planktonic, non-endosymbiontic members of the genus Polynucleobacter were initially assigned to a new subspecies of the species P. necessarius [4] but later transferred to separate species.[5] Since the last revision of the species, 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.[6][7][8]
See also
[edit]References
[edit]- ^ List of Prokaryotic names with Standing in Nomenclature
- ^ Hekkmann, K. (1975) Omikron, ein essentieller Endosymbiont von Euplotes aediculatus. The Journal of Protozoology, 22: 97-104. https://doi.org/10.1111/j.1550-7408.1975.tb00949.x
- ^ Heckmann, K. and H. J. Schmidt (1987) Polynucleobacter necessarius gen. nov., sp. nov., an obligately endosymbiotic bacterium living in the cytoplasm of Euplotes aediculatus. Int. J. Syst. Bacteriol. 37:456-457. (doi: 10.1099/00207713-37-4-456)
- ^ Hahn, M.W., Lang, E., Brandt, U., Wu, Q.L., and Scheuerl, T. (2009): Emended description of the genus Polynucleobacter and the species P. necessarius and proposal of two subspecies, P. necessarius subspecies necessarius subsp. nov. and P. necessarius subsp. asymbioticus subsp. nov. Int. J. Syst. Evol. Microbiol. 59: 2002-2009
- ^ 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.
- ^ SIGS Standards in Genomic Sciences
- ^ 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.
- ^ EzBioCloud
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