Knowledge Resource Center for Ecological Environment in Arid Area
| 项目编号 | 0949570 |
| MSB: Collaborative Research: Biological stoichiometry of microbes under severe P-limitation | |
| Janet Siefert | |
| 主持机构 | William Marsh Rice University |
| 开始日期 | 2010-09-01 |
| 结束日期 | 2014-11-30 |
| 资助经费 | 283742(USD) |
| 项目类别 | Standard Grant |
| 资助机构 | US-NSF（美国国家科学基金会） |
| 项目所属计划 | ECOSYSTEM STUDIES, COLLABORATIVE RESEARCH |
| 语种 | 英语 |
| 国家 | 美国 |
| 英文简介 | All organisms require chemical elements such as carbon (C), nitrogen (N), and phosphorus (P) for growth and development. P is of particular interest because it is especially important in construction of genetic material such as DNA and RNA and is often present in limiting concentrations in the environment. This project will investigate the biological rules that determine the elemental recipe ("stoichiometry") of microorganisms that grow under severely P deficient conditions in a set of unique desert springs in Mexico. This study will use both laboratory and field experiments, combined with cutting-edge methods of molecular biology and genomics, to investigate how changes in P supply alter the ecological and evolutionary dynamics of these microorganisms and to reveal how they cope with shortages of this essential chemical element. Furthermore, the study will help us understand how human alterations in P supply, such as those driven by inefficient use of fertilizer or by inputs of P-rich sewage, affect microbial ecosystems. It will also help in discovery of new genes and genetic strategies by which organisms efficiently use P. These discoveries may be useful for agriculture and other settings in light of growing concern about the finite supply of economically recoverable P for fertilizer production. Finally, the project will produce bi-lingual science education products that will enhance science education in Arizona and nationally for both K/12 students and the general public. |
| 来源学科分类 | Biological Sciences |
| URL | https://www.nsf.gov/awardsearch/showAward?AWD_ID=0949570 |
| 资源类型 | 项目 |
| 条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/341472 |
| 推荐引用方式 GB/T 7714 | Janet Siefert.MSB: Collaborative Research: Biological stoichiometry of microbes under severe P-limitation.2010. |
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