Negative effects of rare earth oxide nanoparticles of La2O3, Nd2O3, and Gd2O3 on the ammonia-oxidizing microorganisms
文献类型：期刊论文
| 作者 | Yue, Yan ; Qi, Lin; Li, Yan; Wang, Jichen; Shen, Congcong; Ge, Yuan
|
| 刊名 | JOURNAL OF SOILS AND SEDIMENTS
 |
| 出版日期 | 2020-08 |
| 卷号 | 20期号:8页码:3114-3123 |
| ISSN号 | 1439-0108 |
| 关键词 | Nano-La2O3 Nano-Nd2O3 Nano-Gd2O3 Ammonia-oxidizing archaea Ammonia-oxidizing bacteria |
| 英文摘要 | Purpose Nanoparticles released into soil environment potentially impact microorganisms, which furtherly disturb terrestrial biogeochemical cycles. However, how rare earth oxide nanoparticles affect the functional microorganisms inhabited in natural soil is still unknown. This study was aimed to investigate the effect of different types of rare earth oxide nanoparticles on the ammonia-oxidizing microorganisms. Materials and methods Soil respectively added with 0, 10, 50, and 100 mg kg(-1) of La2O3, Nd2O3, or Gd2O3 nanoparticle were incubated at 25 degrees C in the dark for 60 days. The potential ammonia oxidation (PAO), abundance and communities of ammonia-oxidizing archaea (AOA), and ammonia-oxidizing bacteria (AOB) were measured at the 1(st), 7(th), and 60(th) day. Results and discussion Our results showed that the PAO in soils with nanoparticles significantly decreased due to nanoparticle toxicity at the 1(st) day, but it gradually increased to the control level owing to the adaptation of AOA and AOB in soils with nano-Nd2O3 and nano-Gd2O3. Interestingly, the abundance of AOB as reflected by the qPCR analysis was upregulated for the hormesis effect of AOB responding to nano-Nd2O3 or nano-Gd2O3 with 50 mg kg(-1) level. Moreover, terminal restriction fragment length polymorphism (T-RFLP) results suggested that the communities for AOA and AOB shifted with nanoparticles type and incubation time. Conclusions Rare earth oxide nanoparticles could inhibit activities of ammonia-oxidizing microorganisms, and thus they might be used as potential nitrification inhibitors to improve nitrogen use efficiency in the agricultural ecosystems. |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/44395]  |
| 专题 | 生态环境研究中心_城市与区域生态国家重点实验室 |
| 推荐引用方式 GB/T 7714 | Yue, Yan,Qi, Lin,Li, Yan,et al. Negative effects of rare earth oxide nanoparticles of La2O3, Nd2O3, and Gd2O3 on the ammonia-oxidizing microorganisms[J]. JOURNAL OF SOILS AND SEDIMENTS,2020,20(8):3114-3123. |
| APA | Yue, Yan,Qi, Lin,Li, Yan,Wang, Jichen,Shen, Congcong,&Ge, Yuan.(2020).Negative effects of rare earth oxide nanoparticles of La2O3, Nd2O3, and Gd2O3 on the ammonia-oxidizing microorganisms.JOURNAL OF SOILS AND SEDIMENTS,20(8),3114-3123. |
| MLA | Yue, Yan,et al."Negative effects of rare earth oxide nanoparticles of La2O3, Nd2O3, and Gd2O3 on the ammonia-oxidizing microorganisms".JOURNAL OF SOILS AND SEDIMENTS 20.8(2020):3114-3123. |
入库方式： OAI收割
来源：生态环境研究中心
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