1887

Abstract

A novel phosphate-solubilizing and 3-indoleacetic acid producing bacterium, designated strain CMYE1, was isolated from the phyllosphere of pomelo () in Meizhou, Guangdong Province, PR China. Cells were Gram-stain-negative, facultative aerobic, non-spore-forming, rod-shaped and motile with peritrichous flagella. It had the highest 16S rRNA gene sequence similarity to NRRL B-65522 (99.0 %), followed by LMG 2657 (98.1 %), B120 (97.7 %), 29Y89B (97.6 %) and other species (<97.6 %). However, phylogenomic analyses clearly showed that strain CMYE1 should be assigned into the genus , and was most closely related to LMG 25322 (96.7 %). Genome comparisons showed that the novel strain shared ≤83.2 % average nucleotide identity and ≤26.5 % digital DNA–DNA hybridization values with closely related strains, respectively. It contained C, C cyclo, summed feature 3 (C 7 and/or C 6) and summed feature 8 (C 7 and/or C 6) as the major fatty acids. Based on the results of phylogenetic, phenotypic and chemotaxonomic analyses, as well as genome comparisons, strain CMYE1 belongs to a novel species of the genus , for which the name sp. nov. is proposed with the type strain CMYE1 (=GDMCC 1.2674=JCM 34792).

Funding
This study was supported by the:
  • the GDAS’ Project of Science and Technology Development (Award 2021GDASYL-20210103020)
    • Principle Award Recipient: Guang-DaFeng
  • Water Resources Department of Guangdong Province (Award 2018B030324001)
    • Principle Award Recipient: HonghuiZhu
  • the National Natural Science Foundation of China (Award 32000007)
    • Principle Award Recipient: Guang-DaFeng
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2022-04-13
2024-10-10
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