Arthrobacter ardleyensis sp. nov., isolated from Antarctic lake sediment and deep-sea sediment

M. Chen, X. Xiao, P. Wang, X. Zeng, Fengping Wang

Research output: Contribution to journalArticlepeer-review

41 Scopus citations

Abstract

Three psychrotrophic Arthrobacter strains, isolated from Antarctic lake sediment (An24, An25 T ) and deep-sea sediment (ZX6) were studied. Their 16S rRNA gene sequences showed highest similarities (97.0-97.9%) with those of A. nicotianae and A. protophormiae. All three strains underwent rod-coccus morphological change, had high mol% G+C content, were aerobic to slightly anaerobic, and grew between 0°C and 30°C, with optimal growth temperature around 25°C. The cell wall peptidoglycan was A4α variant. DNA-DNA hybridization, physiological and chemotaxonomic studies indicated that these three strains constituted a new homogeneous genomic species within the genus Arthrobacter, for which the name Arthrobacter ardleyensis, with the type strain An25 T (CGMCC 1.3685, JCM 12921) was proposed.

Original languageEnglish
Pages (from-to)301-305
Number of pages5
JournalArchives of Microbiology
Volume183
Issue number4
DOIs
StatePublished - May 2005
Externally publishedYes

Keywords

  • Antarctica
  • Arthrobacter ardleyensis
  • Cell wall
  • DNA-DNA hybridization
  • Deep-sea
  • Mol% G+C content

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