Current Microbiology

, Volume 63, Issue 2, pp 213–217 | Cite as

Actimicrobium antarcticum gen. nov., sp. nov., of the Family Oxalobacteraceae, Isolated from Antarctic Coastal Seawater

  • Eun Hye Kim
  • Hyun-Jeong Jeong
  • Yoo Kyoung Lee
  • Eun Young Moon
  • Jang-Cheon Cho
  • Hong Kum Lee
  • Soon Gyu Hong


A Gram-negative, non-motile, catalase- and oxidase- positive, strictly aerobic, and short rod-shaped bacterium that was designated strain KOPRI 25157T was isolated from coastal seawater sample in Antarctica. The temperature and pH ranges for growth on R2A agar were 10–20°C, and 5.0–10.0, respectively. Phylogenetic analyses of the 16S rRNA gene sequence of strain KOPRI 25157T showed it to belong to the family Oxalobacteraceae of the class Betaproteobacteria, and it formed a distinct clade from other recognized members of the family. DNA G + C content was 65.9 mol%. Major ubiquinone was Q-8. Predominant cellular fatty acids were C16:1 ω7c/15 iso 2OH (56.4%) and C16:1 (30.5%). Major polar lipids were phosphatidylglycerol, phosphatidylethanolamine, and unknown lipid. On the basis of these data, it is proposed that strain KOPRI 25157T is the representative of a novel genus, for which the name Actimicrobium gen. nov. is proposed in the family Oxalobacteraceae. The type strain for Actimicrobium antarcticum sp. nov. is KOPRI 25157T (=JCM 16673T=KCTC 23040T).


Betaproteobacteria Isoprenoid Quinone Major Polar Lipid KCTC 23040T Burkholderiales 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.



We are grateful to Dr. J. P. Euzéby for help with nomenclature. This study was supported by Korea Polar Research Institute (Grant PE10050).

Supplementary material

284_2011_9962_MOESM1_ESM.pdf (20 kb)
Fig. S1 Two-dimensional thin-layer chromatogram of polar lipids of strain KOPRI 25157T. DPG, Diphosphatidylglycerol; PE, phosphatidylethanolamine; PG, phosphatidylglycerol; PS, phosphatidylserine; AL, unknown aminolipids; L, unknown polar lipid. (PDF 19 kb)


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Copyright information

© Springer Science+Business Media, LLC 2011

Authors and Affiliations

  • Eun Hye Kim
    • 1
    • 2
  • Hyun-Jeong Jeong
    • 1
  • Yoo Kyoung Lee
    • 1
  • Eun Young Moon
    • 3
  • Jang-Cheon Cho
    • 2
  • Hong Kum Lee
    • 1
  • Soon Gyu Hong
    • 1
  1. 1.Division of Polar Life SciencesKorea Polar Research InstituteIncheonRepublic of Korea
  2. 2.Division of Biology and Ocean SciencesInha UniversityNam-gu, IncheonRepublic of Korea
  3. 3.Institute of MicrobiologySeoul National UniversitySeoulRepublic of Korea

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