Strong linkage between active microbial communities and microbial carbon usage in a deglaciated terrain of the High Arctic
- Strong linkage between active microbial communities and microbial carbon usage in a deglaciated terrain of the High Arctic
- Other Titles
- 북극의 빙하후퇴지역에서 미생물 군집 구조와 탄소 이용 패턴 간의 연관성 연구
- Kim, Mincheol
Lee, Yoo Kyung
Gyeong, Hye Ryeon
- Carbon usage; Glacier retreat; Microbial succession
- Issue Date
- Kim, Mincheol, Lee, Yoo Kyung, Gyeong, Hye Ryeon. 2017. Strong linkage between active microbial communities and microbial carbon usage in a deglaciated terrain of the High Arctic. AGU Fall meeting 2017. 미국 뉴올리언스. 2017.12.11~2017.12.15.
- Soil microorganisms play pivotal roles in ecosystem development and carbon cycling in newly exposed glacier forelands. However, little is known about carbon utilization pattern by metabolically active microbes over the course of ecosystem succession in these nutrient-poor environments. We investigated RNA-based microbial community dynamics and its relation to microbial carbon usage along the chronosequence of a High Arctic glacier foreland. Among microbial taxa surveyed (bacteria, archaea and fungi), bacteria are among the most metabolically active taxa with a dominance of Cyanobacteria and Actinobacteria. There was a strong association between microbial carbon usage and active Actinobacterial communities, suggesting that member of Actinobacteria are actively involved in organic carbon degradation in glacier forelands. Both bacterial community and microbial carbon usage are converged towards later stage of succession, indicating that the composition of soil organic carbon plays important roles in structuring bacterial decomposer communities during ecosystem development.
- Conference Name
- AGU Fall meeting 2017
- Conference Place
- 미국 뉴올리언스
- Conference Date
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