Frontiers in the microbial processes of ammonia oxidation in soils and sediments
Frontiers in the microbial processes of ammonia oxidation in soils and sediments
复制标题
土壤和沉积物中氨氧化微生物过程的前沿
DOI：
10.1007/s11368-014-0872-x
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发表时间：
2014-03
影响因子：
3.6
通讯作者：
Ji-Zheng He
中科院分区：
文献类型：
--
作者：
Ju-Pei Shen;Zhihong Xu;Ji-Zheng He
目的最近在氮（N）循环过程中的两个发现，即古菌氨氧化器和厌氧氨（铵）氧化（anammox），引起了人们对研究微生物氨氧化过程的极大兴趣。本综述的目的是强调土壤和沉积物中氨氧化过程的最新进展，并提出该主题的未来研究活动。结果和讨论好氧氨氧化和厌氧氨氧化过程分别通过亚硝酸盐的生产和消耗联系起来，从而从土壤和沉积物生态系统中去除活性氮（NH4+、NO2−、NO3−）。氨氧化微生物广泛分布于土壤和沉积物中，越来越多的证据表明，氨氧化古菌和细菌分别在酸性土壤和其他土壤的氨氧化中占功能主导。厌氧氨氧化菌的广泛存在和丰度的巨大变化表明其分布的异质性和生态位分化。因此，这两个微生物群在自然界中的全球分布促使研究人员研究相关群的生理和代谢，并评估它们对氮循环的贡献。结论我们总结了土壤和沉积物中需氧和厌氧氨氧化微生物学的当前进展，并提供了未来的前景。随着人们对土壤和沉积物氨氧化过程的日益关注和兴趣，对硝化和厌氧氨氧化的微生物机制及其相互作用的研究对于了解它们通过硝酸盐浸出或与氮相关的气体排放对氮损失的贡献至关重要。
PurposeTwo recent discoveries in nitrogen (N) cycling processes, i.e., archaeal ammonia oxidizers and anaerobic ammonia (ammonium) oxidation (anammox), have triggered great interest in studying microbial ammonia oxidation processes. The purpose of this review is to highlight recent progress in ammonia oxidation processes in soils and sediments and to propose future research activities in this topic.Results and discussionAerobic ammonia oxidation and anammox processes are linked through the production and consumption of nitrite, respectively, thereby removing the reactive N (NH4+, NO2−, NO3−) from soil and sediment ecosystems. Ammonia-oxidizing microorganisms are widely distributed in soils and sediments, and increasing evidence suggests that ammonia-oxidizing archaea and bacteria are functionally dominant in the ammonia oxidation of acid soils and other soils, respectively. The widespread occurrence and great variation in the abundance of anammox bacteria indicate their heterogeneous distribution and niche differentiation. Therefore, the worldwide distribution of both microbial groups in nature has stimulated researchers to investigate the physiology and metabolism of related groups, as well as appraising their contribution to N cycling.ConclusionsWe summarized the current progress and provided future perspectives in the microbiology of aerobic and anaerobic ammonia oxidation in soils and sediments. With increasing concern and interest in soil and sediment ammonia oxidation processes, studies in the microbial mechanisms underlying nitrification and anammox, as well as their interactions, are essential for understanding their contribution to the loss of N either through nitrate leaching or N-related gas emissions.
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影响因子：
4.2
作者：
Offre, Pierre;Prosser, James I.;Nicol, Graeme W.
通讯作者：
Nicol, Graeme W.
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：
3.7
作者：
Cao, Huiluo;Auguet, Jean-Christophe;Gu, Ji-Dong
通讯作者：
Gu, Ji-Dong
影响因子：
64.8
作者：
Kuypers, MMM;Sliekers, AO;Jetten, MSM
通讯作者：
Jetten, MSM
氮负荷水平影响半干旱温带草原土壤氨氧化原核生物的丰度和组成
影响因子：
3.6
作者：
Shen, Xin-Yi;Zhang, Li-Mei;He, Ji-Zheng
通讯作者：
He, Ji-Zheng