| DOI: | 10.2172/985926
|
| 报告号: | LBNL-3740E-Poster
|
| 报告题名: | Functional Ecological Gene Networks to Reveal the Changes Among Microbial Interactions Under Elevated Carbon Dioxide Conditions |
| 作者: | Deng, Ye; Zhou, Jizhong; Luo, Feng; He, Zhili; Tu, Qichao; Zhi, Xiaoyang
|
| 出版年: | 2010
|
| 发表日期: | 2010-05-17
|
| 总页数: | 1
|
| 国家: | 美国
|
| 语种: | 英语
|
| 英文关键词: | microbial biodiversity
; random matrix theory (RMT)
; environmental changes
|
| 中文主题词: | 碳
; 氮
; 二氧化碳
|
| 主题词: | CARBON
; NITROGEN
; CARBON DIOXIDE
|
| 英文摘要: | Biodiversity and its responses to environmental changes is a central issue in ecology, and for society. Almost all microbial biodiversity researches focus on species richness and abundance but ignore the interactions among different microbial species/populations. However, determining the interactions and their relationships to environmental changes in microbial communities is a grand challenge, primarily due to the lack of information on the network structure among different microbial species/populations. Here, a novel random matrix theory (RMT)-based conceptual framework for identifying functional ecological gene networks (fEGNs) is developed with the high throughput functional gene array hybridization data from the grassland microbial communities in a long-term FACE (Free Air CO2 Enrichment) experiment. Both fEGNs under elevated CO2 (eCO2) and ambient CO2 (aCO2) possessed general characteristics of many complex systems such as scale-free, small-world, modular and hierarchical. However, the topological structure of the fEGNs is distinctly different between eCO2 and aCO2, suggesting that eCO2 dramatically altered the interactions among different microbial functional groups/populations. In addition, the changes in network structure were significantly correlated with soil carbon and nitrogen dynamics, and plant productivity, indicating the potential importance of network interactions in ecosystem functioning. Elucidating network interactions in microbial communities and their responses to environmental changes are fundamentally important for research in microbial ecology, systems microbiology, and global change. |
| URL: | http://www.osti.gov/scitech/servlets/purl/985926
|
| Citation statistics: |
|
| 资源类型: | 研究报告
|
| 标识符: | http://119.78.100.158/handle/2HF3EXSE/39801
|
| Appears in Collections: | 过去全球变化的重建
影响、适应和脆弱性
科学计划与规划
气候变化与战略
全球变化的国际研究计划
气候减缓与适应
气候变化事实与影响
|
| File Name/ File Size |
Content Type |
Version |
Access |
License |
|
|---|
| 985926.pdf（1189KB） | 研究报告 | -- | 开放获取 | | View
Download
|
|
| Recommended Citation: | |
Deng, Ye,Zhou, Jizhong,Luo, Feng,et al. Functional Ecological Gene Networks to Reveal the Changes Among Microbial Interactions Under Elevated Carbon Dioxide Conditions. 2010-01-01.
|
|
|