| DOI: | 10.2172/1177136
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| 报告号: | DOE-UCB--04730
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| 报告题名: | Plant stimulation of soil microbial community succession: how sequential expression mediates soil carbon stabilization and turnover |
| 作者: | Firestone, Mary
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| 出版年: | 2015
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| 发表日期: | 2015-03-31
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| 总页数: | 3
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| 国家: | 美国
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| 语种: | 英语
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| 英文关键词: | Rhizosphere
; Root-microbial
; Carbon stabilization
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| 中文主题词: | 碳
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| 主题词: | CARBON
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| 英文摘要: | It is now understood that most plant C is utilized or transformed by soil microorganisms en route to stabilization. Hence the composition of microbial communities that mediate decomposition and transformation of root C is critical, as are the metabolic capabilities of these communities. The change in composition and function of the C-transforming microbial communities over time in effect defines the biological component of soil C stabilization. Our research was designed to test 2 general hypotheses; the first two hypotheses are discussed first; H1: Root-exudate interactions with soil microbial populations results in the expression of enzymatic capacities for macromolecular, complex carbon decomposition; and H2: Microbial communities surrounding roots undergo taxonomic succession linked to functional gene activities as roots grow, mature, and decompose in soil. Over the term of the project we made significant progress in 1) quantifying the temporal pattern of root interactions with the soil decomposing community and 2) characterizing the role of root exudates in mediating these interactions. |
| URL: | http://www.osti.gov/scitech/servlets/purl/1177136
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| Citation statistics: |
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| 资源类型: | 研究报告
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| 标识符: | http://119.78.100.158/handle/2HF3EXSE/41907
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| 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
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| 1177136.pdf（121KB） | 研究报告 | -- | 开放获取 | | View
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| Recommended Citation: | |
Firestone, Mary. Plant stimulation of soil microbial community succession: how sequential expression mediates soil carbon stabilization and turnover. 2015-01-01.
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