Biogeography of anaerobic ammonia-oxidizing (anammox) bacteria.
Biogeography of anaerobic ammonia-oxidizing (anammox) bacteria.
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DOI：
10.3389/fmicb.2014.00399
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发表时间：
2014
影响因子：
5.2
通讯作者：
Neufeld JD
中科院分区：
文献类型：
--
作者：
Sonthiphand P;Hall MW;Neufeld JD
厌氧氨氧化（anammox）细菌能够氧化氨并还原亚硝酸盐以产生N2气体。在废水处理厂（WWTP）中发现后，厌氧氨氧化细菌随后在自然环境中进行了表征，包括海洋，河口，淡水和陆地栖息地。虽然厌氧氨氧化细菌在去除工程和自然生态系统中的固定氮中发挥着重要作用，但大规模的厌氧氨氧化细菌分布尚未总结。本研究的目的是探索全球的厌氧氨氧化细菌的分布和多样性，并确定影响其细菌地理学的因素。本研究分析了公共数据库中的6000多个anammox 16S rRNA基因序列。数据排序表明，盐度是一个重要的因素控制厌氧氨氧化细菌的分布，不同的种群栖息在自然和工程生态系统。基因同源性和稀疏分析表明，淡水环境和海水柱窝藏的anammox细菌的多样性最高和最低的，分别。共现网络分析表明，Ca.与其他Ca。Scalindua taxa，而Ca. Brocadia与已知和未知的anammox属的分类群共存。我们的调查提供了一个更好的了解影响anammox细菌分布的生态因素，并提供了一个全面的基线，了解全球环境中的anammox社区之间的关系。
Anaerobic ammonia-oxidizing (anammox) bacteria are able to oxidize ammonia and reduce nitrite to produce N2 gas. After being discovered in a wastewater treatment plant (WWTP), anammox bacteria were subsequently characterized in natural environments, including marine, estuary, freshwater, and terrestrial habitats. Although anammox bacteria play an important role in removing fixed N from both engineered and natural ecosystems, broad scale anammox bacterial distributions have not yet been summarized. The objectives of this study were to explore global distributions and diversity of anammox bacteria and to identify factors that influence their biogeography. Over 6000 anammox 16S rRNA gene sequences from the public database were analyzed in this current study. Data ordinations indicated that salinity was an important factor governing anammox bacterial distributions, with distinct populations inhabiting natural and engineered ecosystems. Gene phylogenies and rarefaction analysis demonstrated that freshwater environments and the marine water column harbored the highest and the lowest diversity of anammox bacteria, respectively. Co-occurrence network analysis indicated that Ca. Scalindua strongly connected with other Ca. Scalindua taxa, whereas Ca. Brocadia co-occurred with taxa from both known and unknown anammox genera. Our survey provides a better understanding of ecological factors affecting anammox bacterial distributions and provides a comprehensive baseline for understanding the relationships among anammox communities in global environments.
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影响因子：
5.1
作者：
Casamayor, EO;Massana, R;Pedrós-Alió, C
通讯作者：
Pedrós-Alió, C
影响因子：
4.2
作者：
Fuchsman, Clara A.;Staley, James T.;Murray, James W.
通讯作者：
Murray, James W.
DOI：
10.1093/bioinformatics/bts565
发表时间：
2012-12-01
期刊：
Bioinformatics (Oxford, England)
影响因子：
--
作者：
Fu L;Niu B;Zhu Z;Wu S;Li W
通讯作者：
Li W
影响因子：
11
作者：
Auguet, Jean-Christophe;Barberan, Albert;Casamayor, Emilio O.
通讯作者：
Casamayor, Emilio O.
影响因子：
2.7
作者：
Abma, W. R.;Schultz, C. E.;van Loosdrecht, M. C. M.
通讯作者：
van Loosdrecht, M. C. M.