Aggregate-related changes in network patterns of nematodes and ammonia oxidizers in an acidic soil
文献类型：期刊论文
| 作者 | Jiang, Yuji1; Sun, Bo1; Li, Huixin2; Liu, Manqiang2; Chen, Lijun1,3; Zhou, Sai1,3 |
| 刊名 | SOIL BIOLOGY & BIOCHEMISTRY
 |
| 出版日期 | 2015-09-01 |
| 卷号 | 88页码:101-109 |
| 关键词 | Ecological network Nematodes Ammonia oxidizers Aggregate fractions Potential nitrification activity |
| ISSN号 | 0038-0717 |
| DOI | 10.1016/j.soilbio.2015.05.013 |
| 通讯作者 | Sun, Bo(bsun@issas.ac.cn) |
| 英文摘要 | Nitrification plays a central role in global nitrogen cycle, which is affected by biological interaction between soil microfauna and microorganisms. However, the complexity of soil biotic communities made it difficult to reveal organizational principles of the community and the interactions among species. Here, we used the network analysis to decipher the interactions between nematodes and ammonia oxidizers within aggregate fractions under 10-year manure application, and examine their associations with soil variables and potential nitrification activity (PNA). Three aggregate fractions included large macroaggregates (>2000 mu m, LA), small macroaggregates (250-2000 mu m, SA), and inter-aggregate soil and space (<250 mu m, IA). Aggregate factions showed a remarkable effect on association networks of nematodes and ammonia oxidizers. The average connectivity (avgK) and the number of edges in overall networks increased with increasing aggregate sizes, while the average geodesic distance (GD) followed the opposite trend. The LA network could be viewed as a better organized or a better operational soil food web with more functional interrelated members than the SA and IA networks. The modules related to PNA were significantly correlated and clustered together as meta-modules in networks of aggregate fractions. The role-shifts prevailed among the network members such as significant module memberships (MMs) and generalist/specialist operational taxonomic units (OTUs). A half of shared nodes were further identified as shared MMs, dominated by ammonia-oxidizing bacteria (AOB) especially for Nitrosospira cluster 3a and 10. Soil pH could explain partly the shift of module hubs in different networks, while grazing by bacterivores might account for three exclusively connecters related to Nitrososphaera clusters 1.1. The strongly coupled modules correlated positively to pH and total carbon (TC), regardless of aggregate fractions. The network analysis approach provided new insights into potential importance of network interactions between nematodes and ammonia oxidizers in soil nitrogen cycling. (C) 2015 Elsevier Ltd. All rights reserved. |
| 收录类别 | SCI |
| WOS关键词 | COMMUNITY STRUCTURE ; ORGANIC-MATTER ; FUNCTIONAL-ORGANIZATION ; MICROBIAL COMMUNITIES ; ASSOCIATION NETWORKS ; AGRICULTURAL SOIL ; TILLAGE SYSTEMS ; BACTERIAL ; ARCHAEA ; DYNAMICS |
| WOS研究方向 | Agriculture |
| WOS类目 | Soil Science |
| 语种 | 英语 |
| WOS记录号 | WOS:000359880600013 |
| 出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2558326 |
| 专题 | 南京土壤研究所 |
| 通讯作者 | Sun, Bo |
| 作者单位 | 1.Chinese Acad Sci, Inst Soil Sci, State Key Lab Soil & Sustainable Agr, Nanjing 210008, Peoples R China 2.Nanjing Agr Univ, Coll Resources & Environm Sci, Nanjing 210095, Jiangsu, Peoples R China 3.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Jiang, Yuji,Sun, Bo,Li, Huixin,et al. Aggregate-related changes in network patterns of nematodes and ammonia oxidizers in an acidic soil[J]. SOIL BIOLOGY & BIOCHEMISTRY,2015,88:101-109. |
| APA | Jiang, Yuji,Sun, Bo,Li, Huixin,Liu, Manqiang,Chen, Lijun,&Zhou, Sai.(2015).Aggregate-related changes in network patterns of nematodes and ammonia oxidizers in an acidic soil.SOIL BIOLOGY & BIOCHEMISTRY,88,101-109. |
| MLA | Jiang, Yuji,et al."Aggregate-related changes in network patterns of nematodes and ammonia oxidizers in an acidic soil".SOIL BIOLOGY & BIOCHEMISTRY 88(2015):101-109. |
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来源：南京土壤研究所
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