1887

Abstract

A Gram-stain-negative, short rod-shaped, yellow bacterium (strain LMO-1) was isolated from deep-sea sediment of the Mariana Trench, Challenger Deep. Phylogenetic analysis based on the 16S rRNA gene sequence showed that strain LMO-1 belonged to genus , with the highest sequence similarity to CC-Nfb-2 (96.3 %), followed by W18RD (96.1 %), 6P (96.0 %) and W16RD (95.9 %). The predominant polar lipids were phosphatidylethanolamine, sphingoglycolipid, phosphatidylglycerol and phosphatidylcholine. The main cellular fatty acids were summed feature 8 (C ω7 and/or C ω6), C and C 2-OH. The major polyamine was -homospermidine and the predominant isoprenoid quinone was ubiquinone-10. The genome DNA G+C content of strain LMO-1 was 69.2 mol%. The average nucleotide identity and DNA–DNA hybridization values between strain LMO-1 and CC-Nfb-2 were 75.9 and 20.5 %, respectively. Based on these data, LMO-1 should be classified as representing a novel species of the genus , for which the name sp. nov. is proposed. The type strain is LMO-1 (=MCCC 1K04066=JCM 33666).

Funding
This study was supported by the:
  • Innovative Research Group Project of the National Natural Science Foundation of China (CN) (Award 91951117)
    • Principle Award Recipient: Yu Zhang
  • National Key Research and Development Program of China (Award No. 2018YFC0309800,2016YFC0300709)
    • Principle Award Recipient: Shanshan Yang
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2020-06-04
2021-10-17
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