Barrientosiimonas humi gen. nov., sp nov., an actinobacterium of the family Dermacoccaceae

文献类型： 外文期刊

第一作者： Lee, Learn-Han

作者： Lee, Learn-Han;Cheah, Yoke-Kqueen;Ab Mutalib, Nurul-Syakima;Lee, Learn-Han;Sidik, Shiran Mohd;Xie, Qing-Yi;Tang, Yi-Li;Lin, Hai-Peng;Hong, Kui;Hong, Kui;Hong, Kui

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期刊名称：INTERNATIONAL JOURNAL OF SYSTEMATIC AND EVOLUTIONARY MICROBIOLOGY （ 影响因子：2.747； 五年影响因子：2.889 ）

ISSN： 1466-5026

年卷期： 2013 年 63 卷

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收录情况： SCI

摘要： Three novel actinobacteria, strains 39(T), 40 and 41, were isolated from soil collected from Barrientos Island in the Antarctic. The taxonomic status of these strains was determined using a polyphasic approach. Comparison of 16S rRNA gene sequences revealed that strain 39(T) represented a novel lineage within the family Dermacoccaceae and was most closely related to members of the genera Demetria (96.9 % 16S rRNA gene sequence similarity), Branchiibius (95.7 %), Dermacoccus (94.4-95.3 %), Calidifontibacter (94.6 %), Luteipulveratus (94.3 W), Yimella (94.20 %) and Kytococcus (93.1 %). Cells were irregular cocci and short rods. The peptidoglycan type was A4 alpha with an L-Lys-L-Ser-D-Asp interpeptide bridge. The cell-wall sugars were galactose and glucose. The major menaquinone was MK-8(H-4). The polar lipids were diphosphatidylglycerol, phosphatidylglycerol, phosphatidylinositol, phosphoglycolipid, two glycolipids and one unknown phospholipid. The acyl type of the cell-wall polysaccharide was N-acetyl. The major cellular fatty acids were anteiso-C-17:0 (41.97%), anteiso-C-17;1 omega 9c (32.16%) and iso-C-16:0 (7.68 %). The DNA G + C content of strain 39(T) was 68.4 mol%. On the basis of phylogenetic and phenotypic differences from other genera of the family Dermacoccaceae, a novel genus and species, Barrientosiimonas humi gen. nov., sp. nov., is proposed; the type strain of the type species is 39(T) (=CGMCC 4.6864(T) =DSM 24617(T)).

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