Spatial distribution of archaeal and bacterial ammonia oxidizers in the littoral buffer zone of a nitrogen-rich lake
文献类型：期刊论文
| 作者 | Wang, Yu ; Zhu, Guibing ; Ye, Lei ; Feng, Xiaojuan ; den Camp, Huub J. M. Op ; Yin, Chengqing |
| 刊名 | Environmental Sciences & Ecology
 |
| 出版日期 | 2012 |
| 卷号 | 24期号:5页码:790-799 |
| 关键词 | littoral zone ammonia oxidation archaea bacteria heterogeneity abundance |
| ISSN号 | 1001-0742 |
| 中文摘要 | The spatial distribution and diversity of archaeal and bacterial ammonia oxidizers (AOA and AOB) were evaluated targeting amoA genes in the gradient of a littoral buffer zone which has been identified as a hot spot for N cycling. Here we found high spatial heterogeneity in the nitrification rate and abundance of ammonia oxidizers in the five sampling sites. The bacterial amoA gene was numerically dominant in most of the surface soil but decreased dramatically in deep layers. Higher nitrification potentials were detected in two sites near the land/water interface at 4.4-6.1 mu g NO2--N/(g dry weight soil.hr), while only 1.0-1.7 mu g NO2--N/(g dry weight soil.hr) was measured at other sites. The potential nitrification rates were proportional to the amoA gene abundance for AOB, but with no significant correlation with AOA. The NH4+ concentration was the most determinative parameter for the abundance of AOB and potential nitrification rates in this study. Higher richness in the surface layer was found in the analysis of biodiversity. Phylogenetic analysis revealed that most of the bacterial amoA sequences in surface soil were affiliated with the genus of Nitrosopira while the archaeal sequences were almost equally affiliated with Candidatus 'Nitrososphaera gargensis' and Candidatus 'Nitrosocaldus yellowstonii'. The spatial distribution of AOA and AOB indicated that bacteria may play a more important role in nitrification in the littoral buffer zone of a N-rich lake. |
| WOS记录号 | WOS:000304632700002 |
| 公开日期 | 2014-11-28 |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/8174]  |
| 专题 | 生态环境研究中心_环境水质学国家重点实验室 |
| 推荐引用方式 GB/T 7714 | Wang, Yu,Zhu, Guibing,Ye, Lei,et al. Spatial distribution of archaeal and bacterial ammonia oxidizers in the littoral buffer zone of a nitrogen-rich lake[J]. Environmental Sciences & Ecology,2012,24(5):790-799. |
| APA | Wang, Yu,Zhu, Guibing,Ye, Lei,Feng, Xiaojuan,den Camp, Huub J. M. Op,&Yin, Chengqing.(2012).Spatial distribution of archaeal and bacterial ammonia oxidizers in the littoral buffer zone of a nitrogen-rich lake.Environmental Sciences & Ecology,24(5),790-799. |
| MLA | Wang, Yu,et al."Spatial distribution of archaeal and bacterial ammonia oxidizers in the littoral buffer zone of a nitrogen-rich lake".Environmental Sciences & Ecology 24.5(2012):790-799. |
入库方式： OAI收割
来源：生态环境研究中心
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