SGR: Pathogenic bacteria may emerge with warming arctic tundra: A concern for human health

SGR：北极苔原变暖可能会出现致病细菌：对人类健康的担忧

• 批准号: 2211256
• 负责人: Linda Nicholas-Figueroa
• 金额: $ 20万
• 依托单位: Ilisagvik College
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2022
• 资助国家: 美国
• 起止时间: 2022-09-01 至 2024-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=2211256&HistoricalAwards=false
• 关键词: SGR; Pathogenic; bacteria; may; emerge

A goal of the Tribal Colleges and Universities Program (TCUP) is to increase the science, technology, engineering, and mathematics (STEM) instructional and research capacities of specific institutions of higher education that serve the Nation's Indigenous students. Expanding the research capacity at these institutions increases the opportunities for students to pursue challenging, rewarding careers in STEM fields, supports research studies in areas that may be locally relevant and encourages faculty members to look beyond the traditional classroom for intellectual and professional growth. This two-year research project submitted by Ilisagvik College aligns directly with these goals. Building on a previous study to comprehensively assess bacterial species by type and abundance present in the soil of the arctic tundra, the study engages undergraduate and secondary school students in faculty-led research in which soil samples will be collected, genetically sequenced, and quantified, to identify and inventory pathogenic species of bacteria. Data generated will contribute to crucial information for tracking the ramifications of changes in climate as potentially pathogenic bacteria are released due to tundra thawing. Along with the broader impacts the study supports related to public health, additional impacts are realized through involving students in real-world research relevant to their communities and stimulating student interest in STEM degrees and careers.Continuing research that has been ongoing for 5+ years and involving Ilisagvik College faculty and student researchers, this project will engage in a comprehensive assessment of microbial species, measuring the composition and abundance of bacterial species that are present in three layers of arctic tundra soil in Utqiaġvik, Alaska through dependent and independent culturing, DNA extraction, DNA sequencing, and analysis. The study focuses on looking for pathogenic species relevant to public health including Mycobacterium simulans. Using an ice-core drill, soil samples will be collected in January, February, March, April, September, and October 2022 – 2024 from the Barrow Environmental Observatory located in Utqiaġvik, AK. Researchers will engage in gene sequencing and measuring the abundance of actively transcribing bacterial species that are present in the samples. This work holds significant intellectual value to advance arctic climate research in its contribution to the body of data required to track and analyze the potential ramifications of pathogens released due to tundra thaw. Additionally, by mentoring students in conducting place-based research that affects them directly, the project encourages students to pursue STEM educational pathways and careers.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.

部落学院和大学方案的一个目标是提高为全国土著学生服务的特定高等教育机构的科学、技术、工程和数学（STEM）教学和研究能力。扩大这些机构的研究能力增加了学生在STEM领域追求具有挑战性，有价值的职业生涯的机会，支持可能与当地相关的领域的研究，并鼓励教师超越传统课堂，寻求智力和专业成长。这个由Ilisagvik学院提交的为期两年的研究项目直接与这些目标相一致。在以前的研究的基础上，全面评估北极苔原土壤中存在的细菌种类的类型和丰度，该研究让本科生和中学生参与教师主导的研究，其中土壤样本将被收集，基因测序和量化，以识别和库存致病细菌种类。产生的数据将有助于跟踪气候变化的后果的关键信息，因为潜在的致病细菌是由于苔原解冻释放。沿着该研究支持与公共卫生相关的更广泛的影响，通过让学生参与与他们的社区相关的现实世界研究并激发学生对STEM学位和职业的兴趣，实现了额外的影响。该项目将参与伊利萨维克学院教师和学生研究人员的持续研究，已经持续了5年多，该项目将对微生物物种进行全面评估，通过独立和非独立培养、DNA提取、DNA测序和分析，测量存在于阿拉斯加Utqiagivik的北极苔原土壤三层中的细菌物种的组成和丰度。该研究的重点是寻找与公共卫生相关的致病物种，包括模拟分枝杆菌。使用冰芯钻，土壤样本将于2022年1月，2月，3月，4月，9月和10月从位于AK Utqiagivik的巴罗环境观测站收集。研究人员将进行基因测序，并测量样本中存在的活跃转录细菌物种的丰度。这项工作具有重要的知识价值，以推进北极气候研究，在其贡献的数据体所需的跟踪和分析的潜在后果，由于冻土解冻释放的病原体。此外，通过指导学生进行直接影响他们的地方性研究，该项目鼓励学生追求STEM教育途径和职业。该奖项反映了NSF的法定使命，并通过使用基金会的智力价值和更广泛的影响审查标准进行评估，被认为值得支持。