Drivers of archaeal ammonia-oxidizing communities in soil.
Drivers of archaeal ammonia-oxidizing communities in soil.
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DOI：
10.3389/fmicb.2012.00210
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发表时间：
2012
影响因子：
5.2
通讯作者：
Triplett EW
中科院分区：
文献类型：
--
作者：
Zhalnina K;de Quadros PD;Camargo FA;Triplett EW
土壤氨氧化古菌（AOA）非常丰富，在氮循环中发挥着重要作用。此外，AOA对土壤质量也有显着影响。 AOA 产生的亚硝酸盐进一步氧化成硝酸盐，会导致土壤氮流失、地表水和地下水污染以及水体富营养化。迄今为止发现的AOA属于奇古菌门。数据库中只有少数古菌基因组可用。因此，AOA基因没有得到很好的注释，并且很难在宏基因组库中挖掘和识别古菌基因。然而，16S rRNA 和氨单加氧酶序列的比较分析表明，土壤中 AOA 的相对丰度差异很大。在一些土壤中，AOA 可以占原核生物群落总数的 10% 以上。在其他土壤中，AOA 只占群落的不到 0.5%。许多方法已被用来测量该群体的丰度和多样性，包括 DGGE、T-RFLP、q-PCR 和 DNA 测序。从南极干旱山谷到南美热带森林再到珠穆朗玛峰附近的土壤，AOA 已在不同的土壤类型和各种生态系统中进行了研究。不同的研究已经确定了多种触发 AOA 丰度的土壤因素。这些因素包括 pH 值、有效氨浓度、有机物含量、水分含量、氮含量、粘土含量以及其他触发因素。土地利用管理似乎对土壤中 AOA 的丰度有重大影响，这可能是农业土壤中使用氮肥的结果。这篇综述总结了有关该主题的已发表结果，并提出了未来的工作建议，以加深我们对土壤管理和土壤气候因素如何影响 AOA 的理解。
Soil ammonia-oxidizing archaea (AOA) are highly abundant and play an important role in the nitrogen cycle. In addition, AOA have a significant impact on soil quality. Nitrite produced by AOA and further oxidized to nitrate can cause nitrogen loss from soils, surface and groundwater contamination, and water eutrophication. The AOA discovered to date are classified in the phylum Thaumarchaeota. Only a few archaeal genomes are available in databases. As a result, AOA genes are not well annotated, and it is difficult to mine and identify archaeal genes within metagenomic libraries. Nevertheless, 16S rRNA and comparative analysis of ammonia monooxygenase sequences show that soils can vary greatly in the relative abundance of AOA. In some soils, AOA can comprise more than 10% of the total prokaryotic community. In other soils, AOA comprise less than 0.5% of the community. Many approaches have been used to measure the abundance and diversity of this group including DGGE, T-RFLP, q-PCR, and DNA sequencing. AOA have been studied across different soil types and various ecosystems from the Antarctic dry valleys to the tropical forests of South America to the soils near Mount Everest. Different studies have identified multiple soil factors that trigger the abundance of AOA. These factors include pH, concentration of available ammonia, organic matter content, moisture content, nitrogen content, clay content, as well as other triggers. Land use management appears to have a major effect on the abundance of AOA in soil, which may be the result of nitrogen fertilizer used in agricultural soils. This review summarizes the published results on this topic and suggests future work that will increase our understanding of how soil management and edaphoclimatic factors influence AOA.
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影响因子：
3.7
作者：
Blainey PC;Mosier AC;Potanina A;Francis CA;Quake SR
通讯作者：
Quake SR
DOI：
10.1073/pnas.1109000108
发表时间：
2011-12-27
影响因子：
11.1
作者：
Gubry-Rangin, Cecile;Hai, Brigitte;Nicol, Graeme W.
通讯作者：
Nicol, Graeme W.
影响因子：
4.2
作者：
Herfort, Lydie;Schouten, Stefan;Damste, Jaap S. Sinninghe
通讯作者：
Damste, Jaap S. Sinninghe
影响因子：
11
作者：
Angel, Roey;Soares, M. Ines M.;Gillor, Osnat
通讯作者：
Gillor, Osnat
影响因子：
4.2
作者：
Hoefferle, Spela;Nicol, Graeme W.;Mandic-Mulec, Ines
通讯作者：
Mandic-Mulec, Ines