Activity, abundance and community structure of anammox bacteria along depth profiles in three different paddy soils
文献类型：期刊论文
| 作者 | Bai, Ren; Xi, Dan; He, Ji-Zheng; Hu, Hang-Wei; Fang, Yun-Ting; Zhang, Li-Mei |
| 刊名 | SOIL BIOLOGY & BIOCHEMISTRY
 |
| 出版日期 | 2015-11 |
| 卷号 | 91期号:1页码:212-221 |
| 关键词 | Anammox hzs gene Rice paddy soil Soil profile N-15 tracer Denitrification |
| 英文摘要 | Anaerobic ammonium oxidation (anammox) is a globally important nitrogen-cycling process mediated by specialized microbes, and has been demonstrated to be ubiquitous in anoxic natural settings and bioreactors. However, our knowledge of its prevalence in different paddy soil types and along the depth profiles remains largely undocumented. Here, mesocosm incubations were constructed to investigate the activity and community compositions of anammox bacteria across different depth layers of three different paddy soils. N-15 tracer experiments showed that anathmox rates were prevalent in almost all depth layers of an inceptisol (Binhai, BH) and an oxisol (Leizhou, LZ), but was absent in an ultisol (Taoyuan, TY). The functional gene hzsB of anammox bacteria was only detected in BH and 12 soil profiles with detected anammox activity. Anammox accounted for 0.4%-12.2% of the total N-2 production, and anammox rates were 0.02-0.77 nmol N g(-1) dry soil h-(1) and significantly correlated with soil pH and electric conductivity. Anammox activity and abundance of hzsB genes were significantly lower in the surface soil layers (0-5 cm) than in the sub-surface soil layers (20-60 cm). Candidatus Brocadia, Candidatus Kuenenia and Candidatus Jettenia were detected by cloning and sequencing, with Candidatus Brocadia being dominant in all the three soils and Candidatus Jettenia being more frequently detected in the 12 soil. The operational taxonomic unit number and diversity indices of anammox bacterial 16S rRNA gene increased with soil depth. Our results demonstrate that anammox is more common and active in alkaline soils than in acidic soils, in deep paddy soil layers than in surface soil layers, and that anammox activities are likely to be regulated by soil chemical properties such as pH, salinity and redox potential. (C) 2015 Elsevier Ltd. All rights reserved. |
| 研究领域[WOS] | Soil Science |
| WOS记录号 | WOS:000364502900024 |
| 公开日期 | 2016-03-15 |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/32504]  |
| 专题 | 生态环境研究中心_环境化学与生态毒理学国家重点实验室 |
| 推荐引用方式 GB/T 7714 | Bai, Ren,Xi, Dan,He, Ji-Zheng,et al. Activity, abundance and community structure of anammox bacteria along depth profiles in three different paddy soils[J]. SOIL BIOLOGY & BIOCHEMISTRY,2015,91(1):212-221. |
| APA | Bai, Ren,Xi, Dan,He, Ji-Zheng,Hu, Hang-Wei,Fang, Yun-Ting,&Zhang, Li-Mei.(2015).Activity, abundance and community structure of anammox bacteria along depth profiles in three different paddy soils.SOIL BIOLOGY & BIOCHEMISTRY,91(1),212-221. |
| MLA | Bai, Ren,et al."Activity, abundance and community structure of anammox bacteria along depth profiles in three different paddy soils".SOIL BIOLOGY & BIOCHEMISTRY 91.1(2015):212-221. |
入库方式： OAI收割
来源：生态环境研究中心
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