Global patterns of abundance, diversity and community structure of the Aminicenantes (candidate phylum OP8).
Global patterns of abundance, diversity and community structure of the Aminicenantes (candidate phylum OP8).
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DOI：
10.1371/journal.pone.0092139
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发表时间：
2014
期刊：
影响因子：
3.7
通讯作者：
Elshahed MS
中科院分区：
文献类型：
--
作者：
Farag IF;Davis JP;Youssef NH;Elshahed MS
我们调查了全球模式的丰度，多样性和社区结构的成员Aminicenestrium（候选门OP 8）。我们的目的是确定这种特征不明显的细菌谱系成员在各种生态系统中所起的假定生态作用。近全长16 S rRNA基因的分析确定了四类和八个订单内的Aminicenetrium。在3,134个数据集中，包括118亿个高通量生成的部分16 S rRNA基因，在913个数据集中鉴定了47,351个氨基酸相关序列。在受碳氢化合物影响的环境中，氨基虫的相对丰度最高，其次是海洋生境（特别是热液喷口和与珊瑚有关的微生物组样本），以及水生非海洋生境（特别是陆地泉水和地下水样本）。虽然整体丰度较高的Aminicenestrine在低氧张力以及非盐和低盐度的栖息地，它遇到了在广泛的氧张力，盐度和温度。对Aminicenalgae群落结构的分析显示，不同数据集的模式不同，主要是由栖息地变化而不是普遍的环境参数驱动的。我们认为，在极端环境中检测到的Aminicenestrium和观察到的不同的社区结构模式反映了高水平的门内代谢多样性和适应能力，使其生存和生长在广泛的栖息地和环境条件。
We investigated the global patterns of abundance, diversity, and community structure of members of the Aminicenantes (candidate phylum OP8). Our aim was to identify the putative ecological role(s) played by members of this poorly characterized bacterial lineages in various ecosystems. Analysis of near full-length 16S rRNA genes identified four classes and eight orders within the Aminicenantes. Within 3,134 datasets comprising ∼1.8 billion high throughput-generated partial 16S rRNA genes, 47,351 Aminicenantes-affiliated sequences were identified in 913 datasets. The Aminicenantes exhibited the highest relative abundance in hydrocarbon-impacted environments, followed by marine habitats (especially hydrothermal vents and coral-associated microbiome samples), and aquatic, non-marine habitats (especially in terrestrial springs and groundwater samples). While the overall abundance of the Aminicenantes was higher in low oxygen tension as well as non-saline and low salinity habitats, it was encountered in a wide range of oxygen tension, salinities, and temperatures. Analysis of the community structure of the Aminicenantes showed distinct patterns across various datasets that appear to be, mostly, driven by habitat variations rather than prevalent environmental parameters. We argue that the detection of the Aminicenantes across environmental extremes and the observed distinct community structure patterns reflect a high level of intraphylum metabolic diversity and adaptive capabilities that enable its survival and growth in a wide range of habitats and environmental conditions.
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影响因子：
3.6
作者：
Davis, James P.;Struchtemeyer, Christopher G.;Elshahed, Mostafa S.
通讯作者：
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影响因子：
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通讯作者：
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