Collaborative Research: Microbially Mediated Alteration of Volcanic Glass using McMurdo Extreme Environments as Natural Laboratories

合作研究：利用麦克默多极端环境作为自然实验室，微生物介导的火山玻璃改变

• 批准号: 0739696
• 负责人: Laurie Connell
• 金额: $ 16.86万
• 依托单位: University of Maine
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2008
• 资助国家: 美国
• 起止时间: 2008-09-01 至 2015-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0739696&HistoricalAwards=false
• 关键词: Collaborative; Research; Microbially; Mediated; Alteration

This project studies the microbial processes that alter volcanic glass, which is critical to understanding the earliest life on earth. To understand the environmental controls on these processes, this project uses the extreme environments of the McMurdo region of Antarctica as a natural laboratory. Volcanic glass substrates are placed in hydrothermal systems, lakes, and other areas for two to four years to identify colonizing microbial consortia and the chemical processes of microbe-glass interaction. Recovered experiments are analyzed to explore the role of eukaryotic and prokaryotic organisms, and the relevance of autotrophs during colonization and biofilm formation using microscopic, molecular and culture techniques. The broader impacts include graduate and undergraduate student participation in research and K-12 outreach and teacher training.

该项目研究改变火山玻璃的微生物过程，这对于理解地球上最早的寿命至关重要。为了了解这些过程的环境控制，该项目将南极麦克默多地区的极端环境作为天然实验室。将火山玻璃基板放置在水热系统，湖泊和其他区域中，为期两到四年，以鉴定定植微生物联盟和微生物玻璃相互作用的化学过程。分析了恢复的实验，以探索真核和原核生物的作用，以及使用微观，分子和培养技术在定植和生物膜形成过程中自养生的相关性。更广泛的影响包括研究生和本科生参与研究以及K-12外展和教师培训。