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Microbispora maris sp. nov., a novel actinobacterium isolated from the gill of the leopard coral grouper ( Plectropomus leopardus)

文献类型： 外文期刊

作者： Xie, Huan 1 ; Xie, Qing-Yi 2 ; Ma, Qing-Yun 2 ; Yang, Li 2 ; Dai, Hao-Fu 2 ; Zhao, You-Xing 2 ; Hao, Yu-E 1 ;

作者机构： 1.Univ South China, Sch Publ Hlth, Hengyang Med Sch, Dept Publ Hlth Lab Sci, Hengyang 421001, Hunan, Peoples R China

2.Chinese Acad Trop Agr Sci, Haikou Key Lab Res & Utilizat Trop Nat Prod, Haikou 571101, Peoples R China

3.Chinese Acad Trop Agr Sci, Inst Trop Biosci & Biotechnol, Natl Key Lab Trop Crop Breeding, Haikou 571101, Peoples R China

关键词： 16S rRNA gene; leopard coral grouper; Microbispora maris sp. nov.; polyphasic taxonomy

期刊名称：INTERNATIONAL JOURNAL OF SYSTEMATIC AND EVOLUTIONARY MICROBIOLOGY （ 影响因子：2.0； 五年影响因子：2.2 ）

ISSN： 1466-5026

年卷期： 2024 年 74 卷 11 期

页码：

收录情况： SCI

摘要： A novel actinomycete, designated strain ZYX- F- 249(T), was isolated from the gill of a leopard coral grouper in Yongxing Island, Hainan Province, China. Based on 16S rRNA gene sequence analysis, strain ZYX-F-249(T) belonged to the genus Microbispora, with high similarities to Microbispora rosea ATCC 12950T (98.7 %), Microbispora hainanensis 211020(T) (98.5 %), Microbispora clausenae CLES2(T) (98.4 %), Microbispora bryophytorum NEAU-TX2-2(T) (98.1 %) and Microbispora oryzae RL4-1ST (98.0 %). Phylogenetic analysis of the 16S rRNA gene sequence of strain ZYX-F-249(T) showed that the strain formed a stable subclade with Microbispora rosea ATCC 12950(T) in the genus Microbispora. The cell wall of the novel isolate contained meso- diaminopimelic acid, while whole- cell sugars were madurose, glucose and ribose. The predominant menaquinones were MK-9(H-6), MK-9(H-4), MK-9(H-2) and MK- 9(H-0). The characteristic phospholipids (PLs) were phosphatidylethanolamine, phosphatidylinositol, diphosphatidylglycerol, phosphatidylmethylethanolamine, phosphatidylinositol mannoside, glycophospholipids and an unknown PL. The major cellular fatty acids (>10%) were iso-C-16: 0 and iso-C (18 :0) . Genome sequencing showed a DNA G+C content of 71.6%. The low average nucleotide identity, digital DNA-DNA hybridization and average amino acid identity values demonstrated that strain ZYX-F-249(T) could be readily distinguished from closely related species. Based on data from these phylogenetic, chemotaxonomic and physiological characteristics, strain ZYX-F-249(T) represents a novel species of the genus Microbispora, for which the name Microbispora maris sp. nov. is proposed. The type strain is ZYX-F-249(T) (=CCTCCAA 2023030T =JCM 36778(T)).

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