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Volume 70, Issue 2

sp. nov. isolated from the leaves of Dandelion () on the Qinghai-Tibetan Plateau Free

Abstract

Two strains (S-1072 and 1626) of Gram-stain-negative, oxidase- and catalase-positive, aerobic, rod-shaped, motile bacteria with a single polar flagellum, were isolated from the leaves of Dandelion () on the Qinghai–Tibet Plateau of China. The cells grew optimally at 28 °C, pH 7.0 and with 0.5 % (w/v) NaCl on brain–heart infusion agar. Phylogenetic analysis based on 16S rRNA gene sequences revealed that strains S-1072 and 1626 belong to the genus , sharing the highest similarity with CCTCC AB 2014326 (97.0 %), CGMCC 1.8985 (96.9 %) and KCTC 22048 (96.6 %). The phylogenomic tree indicated that strains S-1072 and 1626 were most closely related to CGMCC 1.12611. The biochemical characteristics revealed that strains S-1072 and 1626 could neither produce trypsin nor produce acid from -glucose, -acetylglucosamine and maltose, distinguishing them from four closest relatives. The DNA G+C contents of strains S-1072 and 1626 were 69.2 and 69.3 mol% respectively. The digital DNA–DNA hybridization values of our isolates with their four closely related species were below the 70 % threshold. The predominant menaquinone was Q-8 (98.7 %) and the major polar lipids included diphosphatidylglycerol, phosphatidylglycerol and phosphatidylethanolamine. The major fatty acids (>10 %) were iso-C, iso-C and summed feature 9 (10-methyl C and/or iso-C 9). Based on the data obtained, strains S-1072 and 1626 should be classified as a novel species of the genus , for which the name sp. nov. is proposed. The type strain is S-1072 (=CGMCC 1.13927=JCM 33487).

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Keyword(s): Dandelion (Taraxacum officinale) , Luteimonas yindakuii sp.nov. and Qinghai-Tibet Plateau
Funding
This study was supported by the:
  • Research Units of Discovery of Unknown Bacteria and Function (Award 2018RU010)
    • Principle Award Recipient: Jianguo Xu
  • Sanming Project of Medicine in Shenzhen (Award SZSM201811071)
    • Principle Award Recipient: Jianguo Xu
  • National Key R&D Program of China (Award 2018YFC1200102)
    • Principle Award Recipient: Dong Jin
  • National Science and Technology Major Project of China (Award 2018ZX10305409-003)
    • Principle Award Recipient: Zhihong Ren
  • National Science and Technology Major Project of China (Award 2018ZX10712001-007)
    • Principle Award Recipient: Jing Yang
© 2020 The Authors
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2019-12-13
2024-04-20
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Luteimonas yindakuii sp. nov. isolated from the leaves of Dandelion (Taraxacum officinale) on the Qinghai-Tibetan Plateau
Int J Syst Evol Microbiol 70, 1007 (2020); https://doi.org/10.1099/ijsem.0.003863
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