Earthworm gut: An overlooked niche for anaerobic ammonium oxidation in agricultural soil
文献类型：期刊论文
| 作者 | Li, Hu; Yang, Xiao-Ru; Wang, Juan ; Zhou, Guo-Wei; Zhang, Yu-Sen; Lassen, Simon Bo; Zhu, Yong-Guan; Su, Jian-Qiang
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| 刊名 | SCIENCE OF THE TOTAL ENVIRONMENT
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| 出版日期 | 2021-01-15 |
| 卷号 | 752页码:- |
| 关键词 | Anammox Soil fauna Gut microbiota Agricultural soil Nitrogen cycle |
| ISSN号 | 0048-9697 |
| 英文摘要 | Soil fauna takes an active part in accelerating turnover of nutrients in terrestrial ecosystems. Anaerobic ammonium oxidation (anammox) has been widely characterized, however, whether anammox is active in earthworm gut and the effect of earthworm on anammox in soil remain unknown. In this study, the activity, abundance and community of anammox bacteria in earthworm guts and soils from microcosms were determined using a N-15-tracing technique, quantitative PCR, and anammox bacterial 16S rRNA gene amplicon sequencing. Results showed that anammox rates in guts ranged between 5.81 and 14.19 nmol N g(-1) dw gut content h(-1), which were significantly (P < 0.01) higher than that in their surrounding soils during 30 day incubation. On the contrary, abundances of hzsB genes encoding subunit B hydrazine synthase in guts were significantly (P < 0.05) lower than those in their surrounding soils. Anammox rates, denitrification N-2 production rates and hzsB genes in soils with earthworms were significantly (P < 0.05) lower than those in control soils. Anammox bacterial compositions differed significantly (P < 0.05) between gut and soil, and earthworm altered anammox bacterial communities in soils. Brocadia, Kuenenia and abundant unclassified anammox bacteria were detected in collected soils and gut contents, in which Brocadia was only detected in guts. These results suggested that microbes in earthworm gut increase, but present of earthworm reduces anammox and denitrification associated N loss by altering the anammox bacterial community compositions in soils. (C) 2020 Elsevier B.V. All rights reserved. |
| WOS研究方向 | Environmental Sciences |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/45454]  |
| 专题 | 生态环境研究中心_城市与区域生态国家重点实验室 |
| 作者单位 | 1.Chinese Acad Sci, Inst Urban Environm, Key Lab Urban Environm & Hlth, Xiamen 361021, Peoples R China 2.Chinese Acad Sci, Ctr Excellence Reg Atmospher Environm, Inst Urban Environm, Xiamen 361021, Peoples R China 3.Chinese Acad Sci, Ningbo Key Lab Urban Environm Proc & Pollut Contr, Ningbo Urban Environm Observat & Res Stn NUEORS, 88 Zhong Ke Rd 4.Chinese Acad Sci, State Key Lab Urban, Beijing 100085, Peoples R China 5.Chinese Acad Sci, Reg Ecol Res Ctr Ecoenvironm Sci, Beijing 100085, Peoples R China 6.Univ Chinese Acad Sci, 19A Yuquan Rd, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, Hu,Yang, Xiao-Ru,Wang, Juan,et al. Earthworm gut: An overlooked niche for anaerobic ammonium oxidation in agricultural soil[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2021,752:-. |
| APA | Li, Hu.,Yang, Xiao-Ru.,Wang, Juan.,Zhou, Guo-Wei.,Zhang, Yu-Sen.,...&Su, Jian-Qiang.(2021).Earthworm gut: An overlooked niche for anaerobic ammonium oxidation in agricultural soil.SCIENCE OF THE TOTAL ENVIRONMENT,752,-. |
| MLA | Li, Hu,et al."Earthworm gut: An overlooked niche for anaerobic ammonium oxidation in agricultural soil".SCIENCE OF THE TOTAL ENVIRONMENT 752(2021):-. |
入库方式： OAI收割
来源：生态环境研究中心
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