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Volume 72, Issue 2

sp. nov., an extremely halophilic archaeon isolated from a salt lake No Access

Abstract

A halophilic archaeal strain, designated C46, was isolated from an inland salt lake in Qinghai Province, PR China. Results of phylogenetic analysis based on 16S rRNA gene sequences indicated that strain C46 belongs to the genus , and the closest phylogenetic relative is DSM 9297 with 97.7 % similarity. Despite this, strain C46 was more related to WSA2 than other members of the genus based on genome comparison and analysis, and the average nucleotide identity, DNA–DNA hybridization, amino acid identity and percentage of conserved protein values between the two strains were 89.1, 53.3, 89.2 and 75.6 %, respectively, which are lower than the cutoff values proposed for species delimitation. The physiological, biochemical, genetic and genomic characteristics of strain C46 were different from those of its closest phylogenetic neighbours, which indicated that this strain represents a novel species of the genus , for which the name sp. nov. is proposed. The type strain is C46 (=CGMCC 1.13737=JCM 32959).

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Keyword(s): Halobaculum rubrum sp. nov. , halophilic archaeon and inland salt lake
Funding
This study was supported by the:
  • National Natural Science Foundation of China (Award 31770005)
    • Principle Award Recipient: Heng-LinCui
© 2022 The Authors
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2022-02-23
2024-05-06
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Halobaculum rubrum sp. nov., an extremely halophilic archaeon isolated from a salt lake
Int J Syst Evol Microbiol 72, 005242 (2022); https://doi.org/10.1099/ijsem.0.005242
/content/journal/ijsem/10.1099/ijsem.0.005242
/content/journal/ijsem/10.1099/ijsem.0.005242
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