Postdoctoral Research Fellowship in Microbial Biology for FY 2004

这一行动为2004财政年度的NSF微生物生物学博士后奖学金提供资金。 该研究金支持关于原生动物、微藻、真菌、古菌、细菌和病毒物种的基础生物学的培训和研究，这些物种通常不被视为模式生物。此外，它为最近的博士生获得微生物生物学的额外培训提供了机会，在既定科学家的赞助下获得研究经验，并拓宽他们的科学视野，超越本科和研究生培训期间的研究经验。 这些研究金的目的还在于协助新科学家进行跨传统学科的研究工作，并利用独特的研究资源、地点和设施，包括国外的地点。“多样性是微生物种群的基本属性，对于理解它们的生态作用非常重要。 这项研究涉及模拟微生物多样性的空间和时间模式，以了解是什么塑造了这种多样性。特别是，它调查了生活在不同类型的栖息地对微生物种群的多样性和遗传结构的影响，通过研究种群谱系树的标度特性和这些树的动态行为，使用分析结果和动态模拟，并将这些结果与洋葱伯克霍尔德菌的实验序列数据进行比较，一种广泛存在于许多不同生态环境中的细菌，在经济和流行病学上也很重要。

This action funds an NSF Postdoctoral Fellowship in Microbial biology for FY2004. The fellowship supports training and research on the basic biology of protozoan, microalgal, fungal, archaeal, bacterial and viral species that are not generally considered to be model organisms. Further, it provides opportunities for recent doctoral recipients to obtain additional training in microbial biology, to gain research experience under the sponsorship of established scientists, and to broaden their scientific horizons beyond the research experiences during the undergraduate and graduate training. These fellowships are further designed to assist new scientists to direct their research efforts across traditional disciplinary lines and to avail themselves of unique research resources, sites, and facilities, including foreign locations.The research and training plan is entitled "The effect of environment on microbial diversity." Diversity is a fundamental property of microbial populations and important to understanding their ecological role. This research involves modeling spatial and temporal patterns of microbial diversity to understand what shapes this diversity. In particular, it investigates the effect of living in different types of habitats on the diversity and genetic structure of microbial populations by studying the scaling properties of genealogical trees of populations and the dynamic behavior of these trees, using both analytic results and dynamic simulations, and comparing these results with experimental sequence data in Burkholderia cepacia, a widespread bacterium which is found in many different ecological niches and is also economically and epidemiologically important.