Dimensions: Collaborative Research: The Cyanobacterial Bloom Microbial Interactome as a Model for Understanding Patterns in Functional Biodiversity

维度：合作研究：蓝藻水华微生物相互作用组作为理解功能生物多样性模式的模型

基本信息

批准号：
1831096
负责人：
Hans Paerl
金额：
$ 41.16万
依托单位：
University of North Carolina at Chapel Hill
依托单位国家：
美国
项目类别：
Standard Grant
财政年份：
2018
资助国家：
美国
起止时间：
2018-08-01 至 2024-07-31
项目状态：
已结题

来源：
https://www.nsf.gov/awardsearch/showAward?AWD_ID=1831096&HistoricalAwards=false
关键词：
Dimensions Collaborative Research Cyanobacterial Bloom

项目摘要

In recent years, harmful outbreaks of toxic cyanobacteria have reached new levels in water bodies all over the world. These cyanobacterial blooms are threatening freshwater lakes. The toxins pose substantial health risks to humans, pets, livestock, and wildlife. Rather than focusing strictly on nutrients and climate like previous research, this project explores the complex bacterial communities that co-occur with cyanobacteria. The project will test the hypothesis that cyanobacteria are supported through a mutually beneficial relationship with a mixture of other bacteria species. This project will make new discoveries about how to mitigate cyanobacterial blooms by comparing different ones across the world during important periods in their life cycles. This project will develop an enhanced understanding of the interactions between cyanobacteria and associated species. This project involves researchers at four U.S. institutions, one of which focuses on undergraduate education. There will be training of at least five Ph.D. and 20 undergraduate students. The project will specifically recruit under-represented minorities into STEM fields to help prepare a diverse scientific workforce.This project will study the fundamental interactions driving one of the most common environmental problems: freshwater toxic cyanobacterial blooms. The central hypothesis is that these blooms constitute complex interactions of cyanobacterial species and associated bacteria. These groups of bacteria co-evolved to form a community of synergistic species, each with unique metabolic capabilities that are critical to the growth, maintenance, and demise of the bloom. Three approaches will be used: (1) a global survey of cyanobacterial blooms throughout the phases of the bloom, (2) a targeted series of metagenomic surveys, and (3) experimental work in the lab and field at sites in China and North America. This project will also explore the roles of nutrient inputs, nutrient ratios, and various forms of nitrogen. New analyses will investigate the taxonomic identities and functional outcomes of these cyanobacterial communities. The results of this project will lead to improved predictions about the toxicity of blooms threatening human activities. This research aims to mitigate harmful cyanobacterial blooms by using a realistic approach based on community ecology and evolutionary biology.This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.

近年来，有害蓝细菌的有害爆发已在世界各地的水体中达到了新水平。这些蓝细菌的开花正在威胁淡水湖泊。毒素对人类，宠物，牲畜和野生动植物构成了强大的健康风险。该项目并没有像以前的研究那样严格关注营养和气候，而是探索了与蓝细菌共同发生的复杂细菌群落。该项目将通过与其他细菌的混合物互惠关系来检验蓝细菌得到支持的假设。该项目将通过在生活周期中的重要时期比较世界各地的不同蓝细菌盛开，从而使新发现有关如何减轻蓝细菌的开花。该项目将增强对蓝细菌与相关物种之间相互作用的了解。该项目涉及美国四个机构的研究人员，其中一个侧重于本科教育。至少将培训五个博士学位。和20名本科生。该项目将专门将代表性不足的少数群体招募到STEM领域，以帮助准备多样化的科学劳动力。该项目将研究驱动最常见环境问题之一的基本互动：淡水有毒的蓝细菌盛开。中心假设是这些花朵构成了蓝细菌和相关细菌的复杂相互作用。这些细菌群体共同进化，形成了一个协同物种的社区，每个物种具有独特的代谢能力，对盛开的生长，维持和消亡至关重要。将使用三种方法：（1）在整个盛开阶段的全球蓝细菌盛开调查，（2）一系列有针对性的元基因组调查，以及（3）在中国和北美地区的实验室和现场进行实验性工作。该项目还将探讨营养输入，营养比和各种形式的氮的作用。新的分析将研究这些蓝细菌群落的分类身份和功能结果。该项目的结果将改善有关威胁人类活动的开花毒性的预测。这项研究旨在通过使用基于社区生态学和进化生物学的现实方法来减轻有害的蓝细菌盛开。该奖项反映了NSF的法定任务，并被认为是通过基金会的智力优点和更广泛的影响来通过评估来支持的。

项目成果

期刊论文数量（28）

专著数量（0）

科研奖励数量（0）

会议论文数量（0）

专利数量（0）

Ancient DNA reveals potentially toxic cyanobacteria increasing with climate change

古代DNA揭示潜在有毒蓝细菌随着气候变化而增加

DOI：
10.1016/j.watres.2022.119435
发表时间：
2022
期刊：
Water Research
影响因子：
12.8
作者：
Jifeng Zhang;Kun Shi;Hans W.Paerl;Kathleen M.Ruhl;Yanli Yuan;Rong Wang;Jie Chen;Mengjuan Ge;Lingling Zheng;Zhiping Zhang;Boqiang Qin;Jianbao Liu;John P. Smol
通讯作者：
John P. Smol

Nitrogen fixation does not axiomatically lead to phosphorus limitation in aquatic ecosystems

固氮不会理所当然地导致水生生态系统中磷的限制

DOI：
10.1111/oik.05246
发表时间：
2018
期刊：
Oikos
影响因子：
3.4
作者：
van Gerven, Luuk P.;Kuiper, Jan J.;Mooij, Wolf M.;Janse, Jan H.;Paerl, Hans W.;de Klein, Jeroen J.
通讯作者：
de Klein, Jeroen J.

Cyanobacterial blooms