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Abstract

In the process of exploring the microbial diversity of pig farms, a Gram-stain-negative, aerobic, rod-shaped, non-spore-forming, non-motile bacterial strain, designated P2K, was isolated from soil sample collected at a pig farm, Guangdong Province, PR China. Phylogenetic analysis based on 16S rRNA gene sequences indicated that strain P2K belonged to the genus , with the highest sequence similarity to PYM5-11 (98.6%) and BUT-6 (98.3 %). The genome size of strain P2K was 6.0 Mb with a DNA G+C content of 68.3 mol%. Average nucleotide identity values between strain P2K and the type strains of the genus were 81.1–81.6 %. The digital DNA–DNA hybridization values between P2K and these relative species were 24.5–25.6%. The polar lipids were phosphatidylethanolamine, phosphatidylglycerol, an unknown aminolipids, two unknown lipids and three unknown phospholipids. The major respiratory quinone of strain P2K was ubiquinone Q-8, and the main fatty acids (>10.0 % of total fatty acids) of strain P2K were iso-C, iso-C and summed feature 9 (C 10-methyl and/or iso-C ω9). Based on phenotypic and genotypic data, strain P2K represents a novel species within the genus , for which the name sp. nov. is proposed, with the type strain P2K (=GDMCC 1.3107=JCM 35231).

Funding
This study was supported by the:
  • National Natural Science Foundation of China (Award 31900084)
    • Principle Award Recipient: YangZhou
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2023-04-21
2024-11-02
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