Collaborative Research: Testing the Drivers and Scale-dependency of Plant-fungal Bacterial Community Co-assembly Across the Arctic

合作研究：测试北极地区植物-真菌细菌群落共组装的驱动因素和规模依赖性

• 批准号: 1603710
• 负责人: Donald Walker
• 金额: $ 19.9万
• 依托单位: University of Alaska Fairbanks Campus
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2016
• 资助国家: 美国
• 起止时间: 2016-09-01 至 2021-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1603710&HistoricalAwards=false
• 关键词: Collaborative; Research; Testing; Drivers; Scale

Proposed Award AbstractArctic vegetation is rapidly changing in response to broad-scale Arctic warming. The investigators of this proposal argue that only by exploring how plants, soil microbes, and soil fungal communities interact and evolve together can we truly understand how vegetation may change in the future. Using over 3500 soil samples that have been collected across the arctic, along with environmental and plant data at the same sites, the investigators will employ new genetic and statistical techniques to understand the complex plant-microbe-fungal relations. While the work tackles a number of basic ecological questions, it will also provide insights into the controls determining how vegetation may change in the near future.The University of New Mexico is a certified Hispanic Serving Institution and of the 1600 undergraduate Biology majors, over 30% are Hispanic. Taylor and Takacs-Vesbach will provide project related research experience to these and other under-represented students. Taylor and Takacs-Vesbach are currently mentor students through three STEM programs based in the Biology department. A letter of support is provided by the Director of the UNM Minority Access to Research Careers (MARC) Program, which commits him to helping the program recruit MARC Program Scholars for training in microbiome methods. The proposal includes for the training of a female post-doctoral scientist at the University of Alaska, Fairbanks.The investigators pose a series of hypotheses that focus on the ecological drivers of community assembly (dispersal, environmental filtering, competition, facilitation, niche partitioning, neutral processes) across five Arctic biomes. They will use over 3500 soil samples that have been collected along two latitudinal transects, each of which includes all five Arctic bioclimatic subzones and
spans 1700 kilometers north to south. Using their extensive sampling and next-generation-sequencing-derived data on community composition of soil fungi and bacteria that are already in hand, combined with data on plant communities at the same sites (which will be augmented with limited sequencing of plant phylogenetic markers), the investigators seek to examine the fundamental patterns of community assembly in each of the three Kingdoms at hierarchical spatial and ecological scales.

拟议的奖项抽象的植被正在响应大规模的北极变暖而迅速变化。 该提案的研究人员认为，只有通过探索植物，土壤微生物和土壤真菌群落如何相互作用和发展，我们才能真正了解未来的植被可能会发生变化。 研究人员将使用已在北极收集的3500多种土壤样品，以及在同一地点的环境和植物数据，研究人员将采用新的遗传和统计技术来了解复杂的植物 - 菌关系。 尽管这项工作解决了许多基本的生态问题，但它还将提供有关确定植被如何在不久的将来发生变化的控制的见解。新墨西哥大学是一家经过认证的西班牙裔美国人服务机构，在1600名本科生物学专业的专业中，超过30％的人是西班牙裔。 泰勒（Taylor）和Takacs-Vesbach将为这些和其他代表性不足的学生提供项目相关的研究经验。 泰勒（Taylor）和Takacs-Vesbach目前是通过生物学系的三个STEM计划指导学生的。 UNM少数民族访问研究职业（MARC）计划的主任提供了支持信，该计划致力于帮助该计划招募MARC计划学者进行微生物组方法的培训。该提案包括培训阿拉斯加大学的一位女性后科学家。 他们将使用沿两个纬度样带收集的3500多种土壤样品，每个土壤样品包括所有五个北极生物气候子区域，并且跨度为1700公里。 利用其广泛的取样和下一代序列的衍生的有关土壤真菌和细菌社区组成的数据，这些数据已经掌握在手头，并结合了相同地点的植物群落的数据（将通过有限的植物系统发育标记的测序来增强植物群落），调查员试图研究每个范围的社区群体和绩效的基础，并在三位王位的绩效中进行了研究。