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Volume 64, Issue Pt_6

sp. nov., a novel radiation-resistant bacterium Free

Abstract

A Gram-reaction-negative, rod-shaped, non-motile, red-pigmented, radiation-resistant, aerobic bacterium designated T-3 was isolated from a soil sample from the Qinghai–Tibet Plateau in Tibet, China, after exposure to 10 kGy gamma radiation. Phylogenetic analysis based on 16S rRNA sequences indicated that this isolate represented a novel member of the genus . Sequence identities of the 16S rRNA gene of strain T-3 with the type strains of species of the genus with validly published names range from 89 % to 97 %, and the most closely related species is Tibet-IIU11 (97 %). The DNA–DNA relatedness between strain T-3 and is 59.10 %. The major fatty acids of strain T-3 were iso-C (27.66 %), summed feature 4 (iso-CI and/or anteiso-CB, 15.84 %), anteiso-C (14.08 %) and summed feature 3 (Cω7 and/orCω6, 12.38 %). The major menaquinone of strain T-3 was MK-7. Phosphatidylethanolamine (PE) was predominant in the polar lipid profile. The G+C content of the DNA of strain T-3 was 69.17 mol%. On the basis of the results of the polyphasic characterization presented in this study, it is concluded that strain T-3 represents a novel species of the genus , for which the name is proposed. The type strain is T-3 ( = ACCC 05760 = KCTC 32407).

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Funding
This study was supported by the:
  • Ministry of Science and Technology of China (Award 2012AA063503, 2010CB126504 and 2013CB733900)
  • National Natural Science Foundation of China (Award 31170105)
  • Important National Science & Technology Specific Projects (Award 2011ZX08009-003 and 2011ZX08012-001)
© 2014 IUMS
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2014-06-01
2024-04-18
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Hymenobacter kanuolensis sp. nov., a novel radiation-resistant bacterium
Int J Syst Evol Microbiol 64, 2108 (2014); https://doi.org/10.1099/ijs.0.051680-0
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