Dissertation Research: Diversity, Distribution, and Cultivation of Novel Soil Bacteria from Snowmelt-Saturated Alpine Tundra
论文研究:融雪饱和高山苔原新型土壤细菌的多样性、分布和培养
基本信息
- 批准号:0408062
- 负责人:
- 金额:$ 1.2万
- 依托单位:
- 依托单位国家:美国
- 项目类别:Standard Grant
- 财政年份:2004
- 资助国家:美国
- 起止时间:2004-06-01 至 2006-05-31
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
The activity of microorganisms is the fundamental driver of global nutrient cycling. Yet, the vast majority of these microbes are uncultivated, and thus completely unknown. It is critical to investigate the biology of novel microbes to understand their function, response, and feedback on a rapidly changing biosphere. Soil is a particularly complex habitat for microbes. It harbors high microbial diversity and biomass, and is a frontier for research as studies of specific novel microbes within their natural soil environment are completely absent. The goal of the proposed work is to determine the roles of newly discovered bacteria from snowmelt-flooded alpine tundra soil. Preliminary results suggest that these bacteria are geographically ubiquitous, are located beneath the soil surface where oxygen is depleted, but are also prevalent at the soil surface under winter snowpack. DNA sequence-based approaches will be used to correlate the presence of these novel bacteria with various environmental characteristics. The novel bacteria are predicted to thrive in cold, oxygen-free habitats, and will be targeted for cultivation by mimicking these conditions. Indeed, a major goal of this work is to isolate the novel bacteria in the laboratory. This study will yield the first insights into the ecology of specific uncultivated, novel soil bacteria, and reveal the extent and structure of oxygen-free soil zones, an overlooked factor in nutrient cycling.
微生物的活动是全球养分循环的基本驱动力。然而,这些微生物中的绝大多数都是未经培养的,因此是完全未知的。研究新型微生物的生物学对于了解它们在快速变化的生物圈中的功能、反应和反馈至关重要。土壤是微生物特别复杂的栖息地。它拥有高度的微生物多样性和生物量,是研究的前沿,因为在自然土壤环境中完全没有对特定新微生物的研究。这项工作的目标是确定从融雪淹没的高山苔原土壤中新发现的细菌的作用。初步结果表明,这些细菌在地理上无处不在,它们位于氧气耗尽的土壤表面之下,但也普遍存在于冬季积雪下的土壤表面。基于DNA序列的方法将用于将这些新型细菌的存在与各种环境特征联系起来。据预测,这种新型细菌将在寒冷、无氧的环境中茁壮成长,并将通过模仿这些条件进行培养。事实上,这项工作的一个主要目标是在实验室中分离出这种新型细菌。这项研究将首次深入了解特定的未开垦的新型土壤细菌的生态学,并揭示无氧土壤带的范围和结构,这是养分循环中一个被忽视的因素。
项目成果
期刊论文数量(0)
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科研奖励数量(0)
会议论文数量(0)
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Steven Schmidt其他文献
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“我搬不起”:洛杉矶的疏忽和公寓年久失修的谈判
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网络延迟对虚拟现实多人运动游戏的影响:谁实际上被延迟了?
- DOI:
10.1109/qomex.2019.8743342 - 发表时间:
2019 - 期刊:
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Tanja Kojić;Steven Schmidt;Sebastian Möller;Jan - 通讯作者:
Jan
Ultrasound Tomography: A Decade-Long Journey from the Laboratory to the Clinic
超声断层扫描:从实验室到临床的十年之旅
- DOI:
- 发表时间:
2015 - 期刊:
- 影响因子:0
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N. Duric;P. Littrup;Cuiping Li;O. Roy;Steven Schmidt - 通讯作者:
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Breast ultrasound tomography versus magnetic resonance imaging for clinical display of anatomy and tumor rendering: Preliminary results
乳腺超声断层扫描与磁共振成像在临床显示解剖结构和肿瘤渲染方面的比较:初步结果
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- 发表时间:
2013 - 期刊:
- 影响因子:0
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Bryan J. Ranger;P. Littrup;N. Duric;Priti Chandiwala;Cuiping Li;Steven Schmidt;Jessica Lupinacci - 通讯作者:
Jessica Lupinacci
Know your Game: A Bottom-Up Approach for Gaming Research
了解你的游戏:自下而上的游戏研究方法
- DOI:
- 发表时间:
2018 - 期刊:
- 影响因子:0
- 作者:
Sajad Mowlaei;Steven Schmidt;Saman Zadtootaghaj;Sebastian Möller - 通讯作者:
Sebastian Möller
Steven Schmidt的其他文献
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{{ truncateString('Steven Schmidt', 18)}}的其他基金
Tenant Immobility and Family Well-Being: Considering the Role of Networks, Neighborhoods, and the Indoor Environment
租户的流动性和家庭福祉:考虑网络、社区和室内环境的作用
- 批准号:
2203801 - 财政年份:2022
- 资助金额:
$ 1.2万 - 项目类别:
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2137375 - 财政年份:2022
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Standard Grant
SitS NSF-UKRI: Collaborative Research: Sensors UNder snow Seasonal Processes in the evolution of ARctic Soils (SUN SPEARS)
SitS NSF-UKRI:合作研究:雪下传感器北极土壤演变的季节性过程(SUN SPEARS)
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1935689 - 财政年份:2020
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Collaborative Research: Relative Controls of Niche vs. Neutral Microbial Community Assembly Processes Over Ecosystem Function Post-Disturbance
合作研究:生态位与中性微生物群落组装过程对扰乱后生态系统功能的相对控制
- 批准号:
1656978 - 财政年份:2016
- 资助金额:
$ 1.2万 - 项目类别:
Continuing Grant
Collaborative Research: Stochasticity and Cryoconite Community Assembly and Function
合作研究:随机性和冷石群落的组装和功能
- 批准号:
1443578 - 财政年份:2016
- 资助金额:
$ 1.2万 - 项目类别:
Standard Grant
Collaborative Research: MSB: Links Between Soil Biogeochemistry and Microbial Community Dynamics Along Recently Deglaciated Chronosequences
合作研究:MSB:土壤生物地球化学和微生物群落动态与最近消融时间序列之间的联系
- 批准号:
0922267 - 财政年份:2009
- 资助金额:
$ 1.2万 - 项目类别:
Standard Grant
MO: The Alpine Microbial Observatory-- Changes in Microbial Diversity and Function Across Extreme Environmental Gradients
MO:高山微生物观测站——极端环境梯度下微生物多样性和功能的变化
- 批准号:
0455606 - 财政年份:2005
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$ 1.2万 - 项目类别:
Continuing Grant
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新型高山真菌的发现、描述和生物地理学
- 批准号:
0426116 - 财政年份:2004
- 资助金额:
$ 1.2万 - 项目类别:
Continuing Grant
Dissertation Research: Seasonal Changes in Biomass and Diversity of Microbes in an Extreme Environment
论文研究:极端环境下生物量的季节变化和微生物多样性
- 批准号:
0105165 - 财政年份:2001
- 资助金额:
$ 1.2万 - 项目类别:
Standard Grant
Microbial Biogeochemistry and Functional Diversity across the Forest-Tundra Ecotone in the Rocky Mountains
落基山脉森林-苔原生态交错带的微生物生物地球化学和功能多样性
- 批准号:
0084223 - 财政年份:2000
- 资助金额:
$ 1.2万 - 项目类别:
Continuing Grant
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