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INTERNATIONAL JOURNAL OF SYSTEMATIC AND EVOLUTIONARY MICROBIOLOGY logo

Volume 74, Issue 3

sp. nov., a bacterium isolated from hot spring microbial mat No Access

Abstract

A Gram-stain-negative, non-endospore-forming, motile, short rod-shaped strain, designated SYSU G07232, was isolated from a hot spring microbial mat, sampled from Rehai National Park, Tengchong, Yunnan Province, south-western China. Strain SYSU G07232 grew at 25–50 °C (optimum, 37 °C), at pH 5.5–9.0 (optimum, pH 6.0) and tolerated NaCl concentrations up to 1.0 % (w/v). Phylogenetic analysis based on the 16S rRNA gene sequences revealed that strain SYSU G07232 showed closest genetic affinity with K106. The genomic features and taxonomic status of this strain were determined through whole-genome sequencing and a polyphasic approach. The predominant quinone of this strain was Q-10. Major cellular fatty acids comprised C cyclo 8 and summed feature 8. The whole-genome length of strain SYSU G07232 was 4.02 Mbp, and the DNA G+C content was 69.26 mol%. The average nucleotide identity (ANIm ≤84.85 % and ANIb ≤76.08  %) and digital DNA–DNA hybridization (≤ 21.9 %) values between strain SYSU G07232 and the reference species were lower than the threshold values recommended for distinguishing novel prokaryotic species. Thus, based on the provided phenotypic, phylogenetic, and genetic data, it is proposed that strain SYSU G07232 (=KCTC 8141=GDMCC 1.4178) be designated as representing a novel species within the genus , named sp. nov.

  • Received:
  • Accepted:
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Keyword(s): Chelatococcus albus sp. nov. , hot spring microbial mat and polyphasic taxonomy
Funding
This study was supported by the:
  • National Natural Science Foundation of China (Award 92251302)
    • Principle Award Recipient: Wen-JunLi
© 2024 Sun Yat-Sen University
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2024-03-26
2024-04-27
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Chelatococcus albus sp. nov., a bacterium isolated from hot spring microbial mat
Int J Syst Evol Microbiol 74, 006307 (2024); https://doi.org/10.1099/ijsem.0.006307
/content/journal/ijsem/10.1099/ijsem.0.006307
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