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  • Title: Phycicoccus ginsengisoli sp. nov., isolated from cultivated ginseng soil.
    Author: Kang JP, Kim YJ, Nguyen NL, Hoang VA, Farh ME, Joo SC, Quan LH, Yang DC.
    Journal: Int J Syst Evol Microbiol; 2016 Dec; 66(12):5320-5327. PubMed ID: 27666743.
    Abstract:
    Ginseng-cultivated soil is an excellent habitat for soil-borne bacteria to proliferate. A novel strain, DCY87T, was isolated from ginseng-cultivated soil in Gochang County, Republic of Korea, and subsequently characterized by polyphasic approach. Cells were rod shaped, non-motile, aerobic, Gram-reaction-positive, oxidase-negative and catalase-positive. 16S rRNA gene sequence analysis showed that strain DCY87T shared the highest similarity to 'Phycicoccus ochangensis' L1b-b9 (98.7 %). Closely phylogenetic relatives of strain DCY87T were identified: Phycicoccus ginsenosidimutans BXN5-13T (97.9 %), Phycicoccus soli THG-a14T (97.8 %), Phycicoccus bigeumensis MSL-03T (97.3 %), Phycicoccus cremeus V2M29T (97.3 %), Phycicoccus aerophilus 5516T-20T (97.3 %), Phycicoccus dokdonensis DS-8T (97.3 %) and Phycicoccus jejuensis KSW2-15T (97.1 %). The major polar lipids were classified as phosphatidylinositol and diphosphatidylglycerol. The major cellular fatty acids were composed of iso-C15 : 0, anteiso-C15:0, C17 : 0 and C17 : 1ω8c. The menaquinone was resolved as MK-8(H4). Strain DCY87T contained meso-diaminopimelic acid as diamino acid in the cell-wall peptidoglycan and glucose, xylose and rhamnose in the whole-cell sugar. The genomic DNA G+C content was calculated to be 72.7 mol%. DNA-DNA hybridization value between strain DCY87T and 'P. ochangensis' L1b-b9 was estimated to be 50 %. However, DNA-DNA hybridization value obtained between strain DCY87T and P. ginsenosidimutans BXN5-13T, P. soli THG-a14T and P. bigeumensis MSL-03T was well below 17 %. In general, polyphasic taxonomy demonstrated that DCY87T strain represented a novel species within the genus Phycicoccus. Accordingly, we propose the name Phycicoccus ginsengisoli sp. nov. The type strain is DCY87T (=KCTC 39635T=JCM 31016T).
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