The contributions of ammonia oxidizing bacteria and archaea to nitrification-dependent N2O emission in alkaline and neutral purple soils
文献类型：期刊论文
| 作者 | Hu, Lei1,4; Dong, Zhixin4; Wang, Zheng2; Xiao, Liwei3; Zhu, Bo4 |
| 刊名 | SCIENTIFIC REPORTS
 |
| 出版日期 | 2022-11-19 |
| 卷号 | 12期号:1页码:11 |
| ISSN号 | 2045-2322 |
| DOI | 10.1038/s41598-022-23084-1 |
| 通讯作者 | Zhu, Bo(bzhu@imde.ac.cn) |
| 英文摘要 | Nitrification is believed to be one of the primary processes of N2O emission in the agroecological system, which is controlled by soil microbes and mainly regulated by soil pH, oxygen content and NH4+ availability. Previous studies have proved that the relative contributions of ammonia oxidizing bacteria (AOB) and archaea (AOA) to N2O production were varied with soil pH, however, there is still no consensus on the regulating mechanism of nitrification-derived N2O production by soil pH. In this study, 1-octyne (a selective inhibitor of AOB) and acetylene (an inhibitor of AOB and AOA) were used in a microcosm incubation experiment to differentiate the relative contribution of AOA and AOB to N2O emissions in a neutral (pH = 6.75) and an alkaline (pH = 8.35) soils. We found that the amendment of ammonium (NH4+) observably stimulated the production of both AOA and AOB-related N2O and increased the ammonia monooxygenase (AMO) gene abundances of AOA and AOB in the two test soils. Among which, AOB dominated the process of ammonia oxidation in the alkaline soil, contributing 70.8% of N2O production derived from nitrification. By contrast, the contribution of AOA and AOB accounted for about one-third of nitrification-related N2O in acidic soil, respectively. The results indicated that pH was a key factor to change abundance and activity of AOA and AOB, which led to the differentiation of derivation of N2O production in purple soils. We speculate that both NH4+ content and soil pH mediated specialization of ammonia-oxidizing microorganisms together; and both specialization results and N2O yield led to the different N2O emission characteristics in purple soils. These results may help inform the development of N2O reduction strategies in the future. |
| WOS关键词 | NITROUS-OXIDE EMISSIONS ; NITRIFIER DENITRIFICATION ; NICHE SPECIALIZATION ; SICHUAN BASIN ; DIVERSITY ; OXIDATION ; MANAGEMENT ; ABUNDANCE ; DICYANDIAMIDE ; FERTILIZERS |
| 资助项目 | Key Project of National Science Foundation of China[U20A20107] ; National Natural Science Foundation of China[41301266] |
| WOS研究方向 | Science & Technology - Other Topics |
| 语种 | 英语 |
| 出版者 | NATURE PORTFOLIO |
| WOS记录号 | WOS:000889342600007 |
| 资助机构 | Key Project of National Science Foundation of China ; National Natural Science Foundation of China |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/187616]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | Zhu, Bo |
| 作者单位 | 1.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 2.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China 3.Chengdu Univ Technol, Chengdu 610059, Peoples R China 4.Chinese Acad Sci, Inst Mt Hazards & Environm, Key Lab Mt Surface Processes & Ecol Regulat, 9,Block 4,Renminnanlu Rd, Chengdu 610041, Sichuan, Peoples R China |
| 推荐引用方式 GB/T 7714 | Hu, Lei,Dong, Zhixin,Wang, Zheng,et al. The contributions of ammonia oxidizing bacteria and archaea to nitrification-dependent N2O emission in alkaline and neutral purple soils[J]. SCIENTIFIC REPORTS,2022,12(1):11. |
| APA | Hu, Lei,Dong, Zhixin,Wang, Zheng,Xiao, Liwei,&Zhu, Bo.(2022).The contributions of ammonia oxidizing bacteria and archaea to nitrification-dependent N2O emission in alkaline and neutral purple soils.SCIENTIFIC REPORTS,12(1),11. |
| MLA | Hu, Lei,et al."The contributions of ammonia oxidizing bacteria and archaea to nitrification-dependent N2O emission in alkaline and neutral purple soils".SCIENTIFIC REPORTS 12.1(2022):11. |
入库方式： OAI收割
来源：地理科学与资源研究所
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