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题名: Diversity, Antimicrobial Activity, and Biosynthetic Potential of Cultivable Actinomycetes Associated with Lichen Symbiosis
作者: Liu, Chengbin1; Jiang, Yi2; Wang, Xinyu3; Chen, Dongbo2; Chen, Xiu1, 2; Wang, Lisong3; Han, Li1; Huang, Xueshi1; Jiang, Chenglin2
刊名: MICROBIAL ECOLOGY
关键词: Lichens ; Actinobacteria ; Selective isolation ; 16S rRNA ; PKS I ; PKS II ; NRPS ; APH ; HMG CoA and CYP biosynthetic genes
英文摘要: Lichens are structured associations of a fungus with a cyanobacteria and/or green algae in a symbiotic relationship, which provide specific habitats for diverse bacterial communities, including actinomycetes. However, few studies have been performed on the phylogenetic relationships and biosynthetic potential of actinomycetes across lichen species. In the present study, a total of 213 actinomycetes strains were isolated from 35 lichen samples (22 lichen genera) collected in Yunnan Province, China. 16S rRNA gene sequence analysis revealed an unexpected level of diversity among these isolates, which were distributed into 38 genera, 19 families, and 9 orders within the Actinobacteria phylum. The detailed taxa of isolates had no clear relationship to the taxonomic affiliations of the associated lichens. To the best of our knowledge, this is the first report to describe the isolation of Actinophytocola, Angustibacter, Herbiconiux, Kibdelosporangium, Kineosporia, Kitasatospora, Nakamurella, Nonomuraea, Labedella, Lechevalieria, Lentzea, Schumannella, and Umezawaea species from lichens. At least 40 isolates (18.78%) are likely to represent novel actinomycetes taxa within 15 genera. In addition, all 213 isolates were tested for antimicrobial activity and screened for genes associated with secondary metabolite production to evaluate their biosynthetic potential. These results demonstrate that the lichens of Yunnan Province represent an extremely rich reservoir for the isolation of a significant diversity of actinomycetes, including novel species, which are potential source for discovering biologically active compounds.
出版日期: 2017-10-01
卷号: 74, 期号:3, 页码:570-584
DOI标识: 10.1007/s00248-017-0972-4
语种: 英语
ISSN号: 0095-3628
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内容类型: 期刊论文
URI标识: http://ir.kib.ac.cn/handle/151853/54877
Appears in Collections:中国科学院东亚植物多样性与生物地理学重点实验室_期刊论文

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作者单位: 1.Northeastern Univ, Coll Life & Hlth Sci, Inst Microbial Pharmaceut, Shenyang 110819, Liaoning, Peoples R China
2.Yunnan Univ, Yunnan Inst Microbiol, Sch Life Sci, Kunming 650091, Yunnan, Peoples R China
3.Chinese Acad Sci, Kunming Inst Bot, Key Lab Plant Divers & Biogeog East Asia, Kunming 650201, Yunnan, Peoples R China

Recommended Citation:
Liu,Chengbin,Jiang,Yi,Wang,Xinyu,et al. Diversity, Antimicrobial Activity, and Biosynthetic Potential of Cultivable Actinomycetes Associated with Lichen Symbiosis[J]. MICROBIAL ECOLOGY,2017,74(3):570-584.
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