1887

Abstract

A novel bacterium, designated NAS39, was isolated from the interfacial sediment of Taihu Lake in PR China and its taxonomic position was investigated by using a polyphasic approach. Cells of the isolate were Gram-stain-negative, aerobic, non-motile, catalase-positive, yellow and rod-shaped. Phylogenetic analyses based on 16S rRNA gene sequences supported that strain NAS39 formed a cluster within the genus , and was most closely related to LB2P30 (98.4 %), followed by 0563 (97.4 %). The average nucleotide identity values between strain NAS39 and LB2P30 and 0563 were 82.5 and 75.3 %, respectively. The digital DNA–DNA hybridization values between strain NAS39 and LB2P30 and 0563 were 40.9 and 18.6 %, respectively. The genomic DNA G+C content was 34.1 mol%. The major respiratory quinone was menaquinone-6. The dominant cellular fatty acids were iso-C and summed feature 3 comprising C ω7/C ω6. The polar lipids comprised phosphatidyl ethanolamine, two amino lipids, three amino phospholipids and two unidentified lipids. Based on the phenotypic, chemotaxonomic, genotypic and phylogenetic characteristics, strain NAS39 (=MCCC 1K06094=KACC 22328) represents a novel species of the genus , for which the name sp. nov. is proposed.

Funding
This study was supported by the:
  • Innovative Funds Plan of Henan University of Technology (Award 2021ZKCJ15)
    • Principle Award Recipient: Jian-HangQu
  • National Natural Science Foundation of China (Award 42107139)
    • Principle Award Recipient: JiaZhou
  • Key Scientific Research Project of Colleges and Universities in Henan Province (Award 20A180009)
    • Principle Award Recipient: Jian-HangQu
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2022-06-13
2022-07-06
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