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Bacterial Community Composition and Isolation of Actinobacteria from the Soil of Flaming Mountain in Xinjiang, China

文献类型： 外文期刊

作者： He, Zixuan 1 ; Wang, Yuxian 3 ; Bai, Xiaoyu 4 ; Chu, Min 2 ; Yi, Yuanyang 2 ; Zhu, Jing 2 ; Gu, Meiying 2 ; Jiang, Ling 3 ; Zhang, Zhidong 1 ;

作者机构： 1.Xinjiang Univ, Coll Life Sci & Technol, Urumqi 830046, Peoples R China

2.Xinjiang Acad Agr Sci, Inst Microbiol, Xinjiang Key Lab Special Environm Microbiol, Urumqi 830091, Peoples R China

3.Nanjing Tech Univ, Coll Food Sci & Light Ind, State Key Lab Mat Oriented Chem Engn, Nanjing 211816, Peoples R China

4.Xinjiang Normal Univ, Coll Life Sci, Urumqi 830054, Peoples R China

关键词： Flaming Mountain; bacterial community composition; actinobacteria; isolation and identification; function evaluation

期刊名称：MICROORGANISMS （ 影响因子：4.5； 五年影响因子：4.8 ）

ISSN：

年卷期： 2023 年 11 卷 2 期

页码：

收录情况： SCI

摘要： In this work, bacterial community composition and actinobacteria resources were explored in extremely hot and hyper-arid areas of Flaming Mountain. This was achieved through a combination of PCR amplicon sequencing of bacterial 16S rRNA gene and cultivation-dependent isolation and characterization efforts. According to the high-throughput sequencing results and soil characteristics, 11 kinds of media were firstly designed to isolate actinobacteria, following the screening and identification of related strains. The results showed that a total of 2994 operational taxonomic units (OTUs) were obtained, involving 22 phyla, 77 orders and 121 genera. Among them, actinobacteria with the relative abundance of 8% ranked third, accounting for 33 genera and 47 species. A total of 132 strains distributed by eight families and 11 genera of actinobacteria were isolated from 11 media, of which six strains were potential new species. Furthermore, the functional characteristics of isolated strains were preliminarily evaluated. The results showed that the obtained strains generally had tolerance against heat, salt and alkali. Fifty-two strains had antibacterial activity, 69 strains could produce hydrolases, and 12.4% of the strains had quorum sensing inhibitory activity. The present study has laid a solid foundation for further understanding the bacterial diversity and exploiting actinobacteria resources in the Flaming Mountain area.

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