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  • Title: Gordonia mangrovi sp. nov., a novel actinobacterium isolated from mangrove soil in Hainan.
    Author: Xie Y, Zhou S, Xu Y, Wu W, Xia W, Zhang R, Huang D, Huang X.
    Journal: Int J Syst Evol Microbiol; 2020 Aug; 70(8):4537-4543. PubMed ID: 32667871.
    Abstract:
    A novel actinobacterium, designated strain HNM0687T, was isolated from mangrove soil samples collected from Hainan Province, PR China and its polyphasic taxonomy was studied. Based on the results of 16S rRNA gene sequence analysis, strain HNM0687T was closely related to Gordonia bronchialis NBRC 16047T (98.7 %), Gordonia rhizosphera NBRC 16068T (98.2 %), Gordonia oryzae RS15-1ST (97.9 %), Gordonia polyisoprenivorans NBRC 16320T (97.7 %) and Gordonia sediminis AMA 120T (97.7 %). Genome-based comparisons revealed a clear distinction in average nucleotide identity values between strain HNM0687T and its closely related strains (74.4-78.3 %). Strain HNM0687T contained meso-diaminopimelic acid, arabinose and galactose in whole-cell hydrolysates. Mycolic acid was present. The menaquinones of strain HNM0687T were MK-9(H2) and MK-7(H2). The phospholipids of the isolate were composed of diphosphatidylglycerol, phosphatidylethanolamine and phosphatidylinositol. The major fatty acids were C16 : 0, C16 : 1  ω7c/C16 : 1  ω6c, C18 : 010-methyl (TBSA), C18 : 0 and C18 : 1  ω9c. Based on its genotypic, chemotaxonomic and phenotypic characteristics, it is concluded that strain HNM0687T represents a novel species of the genus Gordonia for which the name Gordonia mangrovi sp. nov. is proposed. The type strain is HNM0687T (=CCTCC AA 2019074 T=KCTC 49383 T).
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