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  • Title: Lederbergia citrea sp. nov., isolated from citrus rhizosphere.
    Author: Han S, Narsing Rao MP, Yang S, Xie CJ, Liu GH, Zhou SG.
    Journal: Int J Syst Evol Microbiol; 2023 May; 73(5):. PubMed ID: 37129938.
    Abstract:
    Three Gram-positive-staining strains FJAT-49754T, FJAT-49682 and FJAT-49731 were isolated from the citrus rhizosphere soil sample. These strains showed the highest 16S rRNA gene sequence similarity with the type strain of Lederbergia panacisoli (97.8-97.9 %). The 16S rRNA gene sequence similarities between strains FJAT-49754T, FJAT-49682, and FJAT-49731 were 99.9 %. The average nucleotide identity (ANI) values between strains FJAT-49754T, FJAT-49682 and FJAT-49731 were above 96 %, while the ANI values with the members of the genus Lederbergia were below 95 %, which were below the cut-off level for prokaryotic species delineation. The above results suggest that strains FJAT-49754T, FJAT-49682 and FJAT-49731 belong to a novel species of the genus Lederbergia. Growth of strain FJAT-49754T was observed at 10-40 °C (optimum at 30 °C, pH 6.0-10.0 (optimum at pH 8.0), and NaCl tolerance up to 7 % (w/v) (optimum at 1 %). MK-7 was the only menaquinone detected in strain FJAT-49754T, and the main polar lipids were diphosphatidylglycerol, phosphatidylglycerol and phosphatidylethanolamine. The major fatty acids of strain FJAT-49754T were anteiso-C15 : 0, iso-C15 : 0, and C16 : 0. The genomic DNA G+C content of strain FJAT-49754T was 38.7 %. Based on the above results, strain FJAT-49754T represents a novel species of the genus Lederbergia, for which the name Lederbergia citrea sp. nov., is proposed. The type strain is FJAT-49754T (=CCTCC AB 2019211T=LMG 31589T).
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