Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.3389/fmicb.2017.02099 |
Cyanobacteria and Alphaproteobacteria May Facilitate Cooperative Interactions in Niche Communities | |
Van Goethem, Marc W.1; Makhalanyane, Thulani P.1; Cowan, Don A.1; Valverde, Angel1,2 | |
通讯作者 | Makhalanyane, Thulani P. ; Valverde, Angel |
来源期刊 | FRONTIERS IN MICROBIOLOGY
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ISSN | 1664-302X |
出版年 | 2017 |
卷号 | 8 |
英文摘要 | Hypoliths, microbial assemblages found below translucent rocks, provide important ecosystem services in deserts. While several studies have assessed microbial diversity of hot desert hypoliths and whether these communities are metabolically active, the interactions among taxa remain unclear. Here, we assessed the structure, diversity, and co-occurrence patterns of hypolithic communities from the hyperarid Namib Desert by comparing total (DNA) and potentially active (RNA) communities. The potentially active and total hypolithic communities differed in their composition and diversity, with significantly higher levels of Cyanobacteria and Alphaproteobacteria in potentially active hypoliths. Several phyla known to be abundant in total hypolithic communities were metabolically inactive, indicating that some hypolithic taxa may be dormant or dead. The potentially active hypolith network was highly modular in structure with almost exclusively positive co-occurrences (> 95% of the total) between taxa. Members of the Cyanobacteria and Alphaproteobacteria were identified as potential keystone taxa, and exhibited numerous positive co-occurrences with other microbes, suggesting that these groups might have important roles in maintaining network topological structure despite their low abundance. |
英文关键词 | cyanobacteria Namib Desert hypolith 16S rRNA network analysis keystone species |
类型 | Article |
语种 | 英语 |
国家 | South Africa |
收录类别 | SCI-E |
WOS记录号 | WOS:000413630200001 |
WOS关键词 | MICROBIAL DIVERSITY ; ASSOCIATION NETWORKS ; FUNCTIONAL-CAPACITY ; ECOLOGICAL NETWORKS ; RIBOSOMAL-RNA ; SOIL ; BACTERIAL ; COLONIZATION ; COOCCURRENCE ; CONTRIBUTES |
WOS类目 | Microbiology |
WOS研究方向 | Microbiology |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/199060 |
作者单位 | 1.Univ Pretoria, Dept Genet, Ctr Microbial Ecol & Genom, Pretoria, South Africa; 2.Univ Free State, Dept Microbial Biochem & Food Biotechnol, Bloemfontein, South Africa |
推荐引用方式 GB/T 7714 | Van Goethem, Marc W.,Makhalanyane, Thulani P.,Cowan, Don A.,et al. Cyanobacteria and Alphaproteobacteria May Facilitate Cooperative Interactions in Niche Communities[J],2017,8. |
APA | Van Goethem, Marc W.,Makhalanyane, Thulani P.,Cowan, Don A.,&Valverde, Angel.(2017).Cyanobacteria and Alphaproteobacteria May Facilitate Cooperative Interactions in Niche Communities.FRONTIERS IN MICROBIOLOGY,8. |
MLA | Van Goethem, Marc W.,et al."Cyanobacteria and Alphaproteobacteria May Facilitate Cooperative Interactions in Niche Communities".FRONTIERS IN MICROBIOLOGY 8(2017). |
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