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Abstract

A Gram-stain-negative, motile, aerobic, non-spore-forming coccus, designated strain CR14, was isolated from crustose coralline algae. Cells grew at 20–30 °C (optimum, 25 °C), at pH 6–9 (optimum, pH 7.6) and with NaCl concentrations of 0.5–9 % (w/v; optimum, 2–4 %). Global alignment based on 16S rRNA gene sequences indicated strain CR14 is closest to JCM 31066 with an identity of 92 %. The average nucleotide identity and average amino acid identity values between CR14 and JCM 31066 were 68.4 and 59.9 %, respectively. Phylogenetic analysis based on 16S rRNA gene sequences indicated that strain CR14 forms an independent branch within the family , which was consistent with the phylogenomic results. The sole isoprenoid quinone was MK-7. The major fatty acids were C, C ω9, C cyc 9,10 DMA, C, and C ω6. The major cellular polar lipids were phosphatidylethanolamine, phosphatidylglycerol, diphosphatidylglycerol, and two unidentified lipids. The genome DNA G+C content was 48.7 mol%. Based on morphological, physiological and chemotaxonomic characteristics, strain CR14 is suggested to represent a novel species in a new genus, for which the name gen. nov., sp. nov. is proposed. The type strain is CR14 (=MCCC 1K03845=KCTC 72139).

Funding
This study was supported by the:
  • National Natural Sciences Foundation of China (Award 41866004)
    • Principle Award Recipient: WangGuanghua
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2024-04-03
2024-04-29
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