Collaborative Research: MO: Forces Driving Microbial Community Diversity and Composition in Humic Lakes

合作研究:MO:驱动腐殖湖微生物群落多样性和组成的力量

基本信息

  • 批准号:
    0702395
  • 负责人:
  • 金额:
    $ 81.27万
  • 依托单位:
  • 依托单位国家:
    美国
  • 项目类别:
    Continuing Grant
  • 财政年份:
    2007
  • 资助国家:
    美国
  • 起止时间:
    2007-09-15 至 2013-08-31
  • 项目状态:
    已结题

项目摘要

Microbes are responsible for most of the carbon and nutrient cycling in freshwater lakes, and influence both local water quality and global carbon budgets. However, it is not currently possible to predict which types of microbes will be found in a particular lake at a particular time, or to predict how a microbial community would respond to environmental change. Microbial biologists need to learn more about how microbes in lakes assemble into communities, the role of drivers such as competition, predation, resource availability, disturbance, and natural selection in shaping these assemblages. This project addresses the following overarching question: What forces organize microbial communities in humic lakes? Microbes and their communities respond to many forces acting at different spatial and temporal scales, and the effect of these forces can be observed at the level of both communities and populations. An interdisciplinary team of microbiologists, ecologists, engineers, and limnologists will use a suite of molecular tools and genomics to investigate (1) Interactions between bacteria and phytoplankton in the surface layers of lakes; (2) Changes in microbial communities resulting from water column disturbances such as thermal stratification and seasonal mixing and (3) The role of evolutionary processes in shaping individual microbial populations within and among lakes. The results of this work will allow us to better explain and ultimately predict the composition and dynamics of microbial communities and populations in freshwater lakes. This project will not only advance our understanding of the microbial ecology of humic lakes, but of microbial ecology and biodiversity in a broader context. The research approach is structured within an ecological framework and reflect urgent questions in the field of microbial biology. To enhance the broader impacts of the work, the investigators will engage in outreach activities coordinated with the following organizations; the NTL-LTER SchoolYard Science program which promotes inquiry-based learning through workshops for high-school teachers; the Center for Biology Education which is developing a virtual professional development resource for middle and high school science and mathematics teachers; the UW-Madison PEOPLE program which organizes summer courses for underrepresented high-school students; the NSF-funded Center for the Integration of Teaching, Research, and Learning which promotes professional development of graduate students, post-docs, and faculty. The research team will continue to leverage these existing programs to show the general public how freshwater microbes are key components of lake ecosystems, impacting water quality and nutrient cycling in profound ways.
微生物负责淡水湖泊中的大部分碳和营养循环,并影响当地水质和全球碳预算。然而,目前还无法预测在特定时间在特定湖泊中会发现哪些类型的微生物,或者预测微生物群落如何应对环境变化。微生物生物学家需要更多地了解湖泊中的微生物如何聚集成群落,以及竞争、捕食、资源可用性、干扰和自然选择等驱动因素在塑造这些群落中的作用。 这个项目解决了以下首要问题:是什么力量组织腐殖湖泊中的微生物群落? 微生物及其群落对不同时空尺度上的多种力量作出反应,这些力量的影响可以在群落和种群水平上观察到。一个由微生物学家、生态学家、工程师和湖沼学家组成的跨学科团队将使用一套分子工具和基因组学来研究(1)湖泊表层细菌和浮游植物之间的相互作用;(2)由于水柱扰动(如热分层和季节性混合)导致的微生物群落变化;(3)演化过程在湖泊内部和湖泊之间形成单个微生物种群中的作用。这项工作的结果将使我们能够更好地解释并最终预测淡水湖泊中微生物群落和种群的组成和动态。该项目不仅将促进我们对腐殖型湖泊微生物生态学的理解,而且将在更广泛的背景下促进对微生物生态学和生物多样性的理解。研究方法是在生态框架内构建的,反映了微生物生物学领域的紧迫问题。为了加强这项工作的广泛影响,调查人员将与以下组织协调开展外联活动:NTL-LTER校园科学方案,该方案通过为高中教师举办讲习班促进基于探究的学习;生物教育中心,该中心正在为初中和高中科学和数学教师开发虚拟专业发展资源;威斯康星大学麦迪逊分校的人计划,为代表性不足的高中生组织暑期课程; NSF资助的中心为教学,研究和学习的整合,促进研究生,博士后和教师的专业发展。研究小组将继续利用这些现有的项目向公众展示淡水微生物是湖泊生态系统的关键组成部分,以深刻的方式影响水质和养分循环。

项目成果

期刊论文数量(2)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
Diversity, distribution, and expression of opsin genes in freshwater lakes
  • DOI:
    10.1111/mec.16891
  • 发表时间:
    2023-03-07
  • 期刊:
  • 影响因子:
    4.9
  • 作者:
    He, Shaomei;Linz, Alexandra M.;McMahon, Katherine D.
  • 通讯作者:
    McMahon, Katherine D.
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Katherine McMahon其他文献

The effect of depressive symptoms and optimism on the risk of spontaneous abortion among innercity women.
抑郁症状和乐观情绪对内城区妇女自然流产风险的影响。
  • DOI:
  • 发表时间:
    2003
  • 期刊:
  • 影响因子:
    0
  • 作者:
    D. Nelson;Katherine McMahon;M. Joffe;C. Brensinger
  • 通讯作者:
    C. Brensinger
Harnessing diversity and antagonism within the pig skin microbiota to identify novel mediators of colonization resistance to methicillin-resistant emStaphylococcus aureus/em
利用猪皮肤微生物群内的多样性和拮抗作用来确定对耐甲氧西林金黄色葡萄球菌定植抗性的新型介质
  • DOI:
    10.1128/msphere.00177-23
  • 发表时间:
    2023-07-05
  • 期刊:
  • 影响因子:
    3.100
  • 作者:
    Monica Wei;Laurice Flowers;Simon A. B. Knight;Qi Zheng;Sofia Murga-Garrido;Aayushi Uberoi;Jamie Ting-Chun Pan;Jasmine Walsh;Erin Schroeder;Emily W. Chu;Amy Campbell;Daniel Shin;Charles W. Bradley;Raimon Duran-Struuck;Elizabeth A. Grice;Katherine McMahon
  • 通讯作者:
    Katherine McMahon
AN UNUSUAL CASE OF CARDIOGENIC SHOCK IN A CARDIO-ONCOLOGIC PATIENT
  • DOI:
    10.1016/s0735-1097(23)03912-8
  • 发表时间:
    2023-03-07
  • 期刊:
  • 影响因子:
  • 作者:
    Katherine McMahon;Kathleen Morris;Amit C. Patel;Ashwin Kumar Ravichandran;Sunit-Preet Singh Chaudhry;Christopher Thomas Salerno;Rafael Samuel Garcia-Cortes
  • 通讯作者:
    Rafael Samuel Garcia-Cortes
TAKOTSUBO CARDIOMYOPATHY: UPDATING THE PROPOSED MECHANISM
  • DOI:
    10.1016/s0735-1097(22)03741-x
  • 发表时间:
    2022-03-08
  • 期刊:
  • 影响因子:
  • 作者:
    Katherine McMahon;James Adlam;Cameron Stepler;Ashwin Kumar Ravichandran
  • 通讯作者:
    Ashwin Kumar Ravichandran
Identification of Genes Required for Long-Term Survival of emLegionella pneumophila/em in Water
嗜肺军团菌在水中长期存活所需基因的鉴定
  • DOI:
    10.1128/msphere.00454-22
  • 发表时间:
    2023-02-28
  • 期刊:
  • 影响因子:
    3.100
  • 作者:
    Philipp Aurass;Seongok Kim;Victor Pinedo;Felipe Cava;Ralph R. Isberg;Katherine McMahon
  • 通讯作者:
    Katherine McMahon

Katherine McMahon的其他文献

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{{ truncateString('Katherine McMahon', 18)}}的其他基金

Unrecognized microbial sources of methyl mercury in freshwater lakes
淡水湖中未被识别的甲基汞微生物来源
  • 批准号:
    1935173
  • 财政年份:
    2020
  • 资助金额:
    $ 81.27万
  • 项目类别:
    Standard Grant
Regulatory Signaling Logic In Self-Assembled Microbial Communities During Oscillating Environmental Conditions
振荡环境条件下自组装微生物群落的调节信号逻辑
  • 批准号:
    1518130
  • 财政年份:
    2015
  • 资助金额:
    $ 81.27万
  • 项目类别:
    Standard Grant
INSPIRE Track 1: Microbial systems biology in freshwater lakes: a new framework for scaling from genes to ecosystems
INSPIRE 轨道 1:淡水湖中的微生物系统生物学:从基因扩展到生态系统的新框架
  • 批准号:
    1344254
  • 财政年份:
    2014
  • 资助金额:
    $ 81.27万
  • 项目类别:
    Continuing Grant
Eco-Systems Biology of Polyphosphate Accumulating Consortia
聚磷酸盐积累聚生体的生态系统生物学
  • 批准号:
    0967646
  • 财政年份:
    2010
  • 资助金额:
    $ 81.27万
  • 项目类别:
    Standard Grant
MSB: Dissertation Research: Methanotroph dynamics in response to lake mixing
MSB:论文研究:甲烷氧化菌动力学响应湖泊混合
  • 批准号:
    0910297
  • 财政年份:
    2009
  • 资助金额:
    $ 81.27万
  • 项目类别:
    Standard Grant
CAREER: Microbes and phosphorus: integrating engineering principles, ecology, and student learning to study eutrophication of freshwater lakes
职业:微生物和磷:整合工程原理、生态学和学生学习来研究淡水湖泊的富营养化
  • 批准号:
    0644949
  • 财政年份:
    2007
  • 资助金额:
    $ 81.27万
  • 项目类别:
    Standard Grant
Dissertation Research: EXPLORING THE DIFFERENTIAL UPTAKE AND BREAKDOWN OF PHOSPHORUS BY FRESHWATER BACTERIAL POPULATIONS
论文研究:探索淡水细菌对磷的吸收和分解的差异
  • 批准号:
    0710059
  • 财政年份:
    2007
  • 资助金额:
    $ 81.27万
  • 项目类别:
    Standard Grant
SGER: An Autonomous Microbial Genosensor for Freshwater Microbial Ecology
SGER:用于淡水微生物生态学的自主微生物基因传感器
  • 批准号:
    0639044
  • 财政年份:
    2006
  • 资助金额:
    $ 81.27万
  • 项目类别:
    Standard Grant
SGER: The Enhanced Biological Phosphorus Removal Metaproteome
SGER:增强型生物除磷元蛋白质组
  • 批准号:
    0634304
  • 财政年份:
    2006
  • 资助金额:
    $ 81.27万
  • 项目类别:
    Standard Grant
Collaborative Research: Mechanism of Enhanced Biological Phosphorus Removal
合作研究:强化生物除磷机理
  • 批准号:
    0332136
  • 财政年份:
    2003
  • 资助金额:
    $ 81.27万
  • 项目类别:
    Continuing Grant

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合作研究:铁和钼同位素的成土分馏:土壤氧化还原状态、有机质和铁(羟基)氧化物组成的作用
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