| 项目编号: | 1406306
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| 项目名称: | DISSERTATION RESEARCH: Effects of concurrent thermal, osmotic and toxicant stress on the copepod Tigriopus californicus |
| 作者: | Suzanne Edmands
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| 承担单位: | University of Southern California
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| 批准年: | 2013
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| 开始日期: | 2014-06-01
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| 结束日期: | 2016-05-31
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| 资助金额: | USD21319
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| 资助来源: | US-NSF
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| 项目类别: | Standard Grant
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| 国家: | US
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| 语种: | 英语
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| 特色学科分类: | Biological Sciences - Environmental Biology
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| 英文关键词: | effect
; stressful environment
; stress-tolerance
; research
; combined stress
; stressful natural environment
; response
; salinity stress
; specific stress response
; additional stress
; copepod tigriopus californicus
|
| 英文摘要: | We will explore how organisms respond and adapt to complex, stressful environments by examining the gene activity of a marine invertebrate, the copepod Tigriopus californicus. When challenged with copper, temperature and salinity stress, we observe different levels of survivorship: more individuals from a southern population are likely to survive than from a northern population. We will compare the set of active genes (RNA) specific to the responses of two populations under both single and combined stress. This research explores the consequences of general and specific stress responses: we hypothesize that some genes respond to just one stress while other genes are part of a shared response system. Interaction between these responses could reduce the effect of an additional stress or compound the problem. In resilient and vulnerable populations, we will observe differences in gene activity that may explain how they try to adapt to multiple challenges. Linking the results of this project with genetic analyses will frame adaptation and stress-tolerance, comparing both the gene and its activity response. This project will answer critical questions about how species deal with stressful environments that present simultaneous challenges.
Exploring population-wide variation and the context of stressful natural environments will be key to understanding organism-habitat interactions, and is increasingly important in light of climate changes. Integrative approaches that identify these compounded responses and the biological mechanisms at play will provide a robust context for understanding the effects of pollution and contamination. This research will also identify genetic activity that makes one population more resilient than another in complex environments. |
| 资源类型: | 项目
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| 标识符: | http://119.78.100.158/handle/2HF3EXSE/96759
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| Appears in Collections: | 影响、适应和脆弱性
气候减缓与适应
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| Recommended Citation: | |
Suzanne Edmands. DISSERTATION RESEARCH: Effects of concurrent thermal, osmotic and toxicant stress on the copepod Tigriopus californicus. 2013-01-01.
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