Enhancing expertise in archaeal taxonomy: Classical and molecular-based monographic research of the Nanoarchaeota

增强古菌分类学方面的专业知识：纳米古菌的经典和分子专题研究

基本信息

批准号：
1134877
负责人：
Anna-Louise Reysenbach
金额：
$ 72.5万
依托单位：
Portland State University
依托单位国家：
美国
项目类别：
Continuing Grant
财政年份：
2011
资助国家：
美国
起止时间：
2011-08-01 至 2017-07-31
项目状态：
已结题

来源：
https://www.nsf.gov/awardsearch/showAward?AWD_ID=1134877&HistoricalAwards=false
关键词：
Enhancing expertise archaeal taxonomy Classical

项目摘要

Despite a ubiquitous distribution, the group of microorganisms known as Archaea still remains the most unexplored of life's domains. Among the Archaea, one organism (Nanoarchaeum equitans) is crucial for deciphering the history of the archaeal domain, yet there is only one characterized representative of this group. This heat-loving microbe grows and divides at the surface of another archaeon suggesting an obligate symbiotic, possibly ectoparasitic, lifestyle. The evolutionary placement of this organism is controversial and provides unique problems in taxonomy for training the next generation of microbial taxonomists. The major goal of this project is to clarify the pivotal position of the Nanoarchaetoa in the Tree of Life. This information will greatly expand our understanding of the taxonomy and physiology of this group as well as our understanding of microbial systematics. In addition, the project will provide a unique opportunity to address how a symbiotic versus free-living lifestyle has impacted genome architecture, rate of evolution, and gene acquisition or loss in Archaea.This project offers research opportunities and training to undergraduates, graduate students, and a post-doctoral research associate in classical and molecular approaches to taxonomy, bioinformatics, phylogenetic analyses, and novel concepts and controversies in modern microbial taxonomy. In addition, the project will provide hands-on experience in microbial taxonomic research to local high school students.

尽管分布无处不在，但被称为古细菌的微生物仍仍然是生命领域中最尚未探索的。在古细菌中，一种有机体（纳米结构equitans）对于破译古细菌域的历史至关重要，但只有一个代表该群体的特征。这种热爱热的微生物在另一个考古的表面生长和分裂，表明具有强制性共生，可能是外发性的生活方式。这种生物的进化放置是有争议的，并在分类学方面为培训下一代微生物分类学家提供了独特的问题。该项目的主要目的是阐明纳米章鱼在生命之树中的关键位置。这些信息将大大扩展我们对该组的分类学和生理学的理解，以及我们对微生物系统学的理解。此外，该项目将提供一个独特的机会，以解决共生与自由生活的生活方式如何影响基因组架构，进化速度以及古细菌的基因获取或损失。该项目为本科生提供研究机会和培训，以对本科生，研究生和分类概念，分类和分类学概念，ph and ph and ph and ph and-nofical and ph and ph and ph and ph and ph and ph。现代微生物分类法的争议。此外，该项目将为当地的高中生提供微生物分类研究的实践经验。