1887

Abstract

A novel, Gram-stain-negative, rod-shaped, strictly anaerobic bacterium of genus of the phylum Bacteroidota, named strain JNU-WLY501, was isolated from pit clay used to produce strong aroma-type liquor in PR China. The genomic DNA G+C content and genome size of JNU-WLY501 were 41.4 % and 3.9 Mbp, respectively. The results of phylogenetic analysis based on 16S rRNA gene sequences indicated that JNU-WLY501 was closely related to DSM 18083 (95.7 %) and M3/6 (94.9 %). The pairwise average nucleotide identity based on and average amino acid identity values of JNU-WLY501 compared with M3/6 were 73.6 and 77.3 %, respectively, which both were lower than the threshold values for bacterial species delineation. The strain grew at 20–40 °C, with optimum growth at 37 °C. The pH range for growth was 5.4–9.1, with optimum growth at pH 7.5. The sodium chloride range for growth was 0.0–4.0 %, with optimum growth at 0 %. The strain did not use glucose, maltose, fructose or starch. Yeast extract, tryptone and peptone supported the growth of JNU-WLY501, and the main fermentation products were acetate and propionate. The predominant cellular fatty acids (>5 %) of JNU-WLY501 were anteiso-C (30.6 %), anteiso-C (26.1 %), C (7.7 %), iso-C (5.0 %) and iso-C (5.0 %). The respiratory quinone of JNU-WLY501 was MK-5. On the basis of the morphological, physiological, biochemical, chemotaxonomic, genotypic and phylogenetic results, JNU-WLY501 represents a novel species of the genus , for which the name sp. nov. is proposed. The type strain is JNU-WLY501 (=GDMCC 1.2686=JCM 34753).

Funding
This study was supported by the:
  • Chinese Baijiu Industrial Technology Innovation Strategic Alliance project (Award 2018-3)
    • Principle Award Recipient: YanXu
  • National Natural Science Foundation of China (Award 32172177)
    • Principle Award Recipient: CongRen
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/content/journal/ijsem/10.1099/ijsem.0.005612
2022-11-24
2024-03-29
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