Collaborative Research: The Consequences of Phage-Bacteria Coevolution in Aquatic Environments
合作研究:水生环境中噬菌体-细菌共同进化的后果
基本信息
- 批准号:0714628
- 负责人:
- 金额:$ 0.42万
- 依托单位:
- 依托单位国家:美国
- 项目类别:Standard Grant
- 财政年份:2006
- 资助国家:美国
- 起止时间:2006-10-01 至 2007-02-28
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
Marine viruses are extremely abundant and diverse. Studies suggest these viruses are important in regulating microbial abundance and diversity and thus may influence nutrient cycling in marine ecosystems. Despite their ecological importance, little is known about the population biology of marine viruses or how these viruses interact with their hosts. This project is examining the coevolution of bacteria and their viruses (phage) in diverse communities and the effect phage/bacteria interactions have on overall bacterial mortality rates. The research is employing a two-pronged approach that will bridge laboratory microcosms with natural communities of marine cyanobacteria and cyanophage. First, natural isolates of cyanobacteria (Synechococcus spp.) and cyanophages are being used to examine whether Synechococcus and cyanophage undergo coevolution, whether phosphate availability changes the outcome of these interactions, and the consequences of these interactions on host mortality. Second, the hypotheses generated in laboratory experiments are being tested in natural marine communities. Synechococcus and cyanophage strains are being isolated from Rhode Island coastal waters over the course of two years. This time series are being used to detect if coevolution is occurring and how it affects the genotypic and phenotypic diversity of cyanobacteria and cyanophages in the natural environment. This project is the first to test whether cyanobacteria and cyanophage undergo coevolution and whether coevolution is likely to occur on a time scale important to their population dynamics. Furthermore, the experiments are examining the consequences of viruses on marine host populations from a population biology perspective, whereas previous studies have examined only aggregate measures of phage-caused mortality.
海洋病毒极其丰富且多样。 研究表明,这些病毒对于调节微生物丰度和多样性很重要,因此可能影响海洋生态系统的养分循环。 尽管海洋病毒具有重要的生态意义,但人们对海洋病毒的种群生物学或这些病毒如何与其宿主相互作用知之甚少。该项目正在研究不同群落中细菌及其病毒(噬菌体)的共同进化,以及噬菌体/细菌相互作用对细菌总体死亡率的影响。该研究采用双管齐下的方法,将实验室微观世界与海洋蓝藻和噬藻体的自然群落联系起来。 首先,使用蓝藻(聚球藻属)和噬藻体的天然分离物来检查聚球藻和噬藻体是否进行共同进化,磷酸盐的可用性是否会改变这些相互作用的结果,以及这些相互作用对宿主死亡率的影响。 其次,实验室实验中产生的假设正在自然海洋群落中得到检验。 两年来,从罗德岛州沿海水域分离出了聚球藻和噬藻体菌株。 该时间序列用于检测协同进化是否正在发生以及它如何影响自然环境中蓝细菌和噬藻体的基因型和表型多样性。 该项目是第一个测试蓝细菌和噬藻体是否经历共同进化以及共同进化是否可能在对其种群动态重要的时间尺度上发生的项目。此外,这些实验从群体生物学的角度研究了病毒对海洋宿主群体的影响,而之前的研究仅研究了噬菌体引起的死亡率的总体指标。
项目成果
期刊论文数量(0)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
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Jennifer Martiny其他文献
Soil microbiome interventions for carbon sequestration and climate mitigation
用于碳封存和气候缓解的土壤微生物组干预措施
- DOI:
10.1128/msystems.01129-24 - 发表时间:
2024-12-16 - 期刊:
- 影响因子:4.600
- 作者:
Gwyn A. Beattie;Anna Edlund;Nwadiuto Esiobu;Jack Gilbert;Mette Haubjerg Nicolaisen;Janet K. Jansson;Paul Jensen;Marco Keiluweit;Jay T. Lennon;Jennifer Martiny;Vanessa R. Minnis;Dianne Newman;Raquel Peixoto;Christopher Schadt;Jan Roelof van der Meer - 通讯作者:
Jan Roelof van der Meer
Jennifer Martiny的其他文献
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{{ truncateString('Jennifer Martiny', 18)}}的其他基金
BEE: Testing a phylogenetic trait framework for soil microbiomes
BEE:测试土壤微生物组的系统发育特征框架
- 批准号:
2113004 - 财政年份:2021
- 资助金额:
$ 0.42万 - 项目类别:
Standard Grant
National Conference of Microbiome Centers; June 25-26, 2019; Irvine, CA
全国微生物组中心会议;
- 批准号:
1925761 - 财政年份:2019
- 资助金额:
$ 0.42万 - 项目类别:
Standard Grant
DISSERTATION RESEARCH: A trait-based approach to characterize microbial community composition
论文研究:基于性状的方法来表征微生物群落组成
- 批准号:
1601106 - 财政年份:2016
- 资助金额:
$ 0.42万 - 项目类别:
Standard Grant
Collaborative proposal: Cyanophage-Synechococcus interactions in complex communities
合作提案:复杂群落中的噬藻体-聚球藻相互作用
- 批准号:
1332740 - 财政年份:2013
- 资助金额:
$ 0.42万 - 项目类别:
Standard Grant
Collaborative research: Evolutionary ecology of marine cyanophages
合作研究:海洋噬藻体的进化生态学
- 批准号:
1031783 - 财政年份:2010
- 资助金额:
$ 0.42万 - 项目类别:
Standard Grant
RAPID: El Nino and the controls of marine virus diversity
RAPID:厄尔尼诺现象和海洋病毒多样性的控制
- 批准号:
1005388 - 财政年份:2009
- 资助金额:
$ 0.42万 - 项目类别:
Standard Grant
CAREER: Integrating Bacterial Diversity into Environmental Change Research and Education
职业:将细菌多样性纳入环境变化研究和教育
- 批准号:
0701494 - 财政年份:2006
- 资助金额:
$ 0.42万 - 项目类别:
Continuing Grant
CAREER: Integrating Bacterial Diversity into Environmental Change Research and Education
职业:将细菌多样性纳入环境变化研究和教育
- 批准号:
0347324 - 财政年份:2004
- 资助金额:
$ 0.42万 - 项目类别:
Continuing Grant
Collaborative Research: The Consequences of Phage-Bacteria Coevolution in Aquatic Environments
合作研究:水生环境中噬菌体-细菌共同进化的后果
- 批准号:
0315645 - 财政年份:2003
- 资助金额:
$ 0.42万 - 项目类别:
Standard Grant
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