KOPRI Repository

Endolithic microbial communities of different types of rocks in Svalbard

Cited 0 time in wos
Cited 0 time in scopus
Endolithic microbial communities of different types of rocks in Svalbard
Choe, Yong-Hoe
Kim, Mincheol
Woo, Jusun
Lee, Mi Jung
Lee, Yoo Kyung
EndolithMicrobial community
Issue Date
Choe, Yong-Hoe, et al. 2015. Endolithic microbial communities of different types of rocks in Svalbard. Microgravity conference in 2016. Incheon. 2016.04.21.-22.
Extreme environmental conditions such as those found in the polar regions on Earth are thought to explore the limits of life and the strategies evolved by microorganisms to adapt to extreme environments. The high Arctic has been long considered a suitable terrestrial analogue to Mars in many geological and astrobiological aspects. We used a combination of pyro-sequencing and microscopy methods to examine endolithic microbial communities on five different rock types (sandstone, limestone, basalt, granite, and travertine). Bacterial communities showed slight variation between different rock types. Bacterial communities were dominated by Actinobacteria, Proteobacteria, Chloroflexi, Bacteroidetes, and Acidobacteria. Blast result revealed that dominant endolithic OTUs in this environment are highly affiliated with those found in soils or rocks of Arctic and Antarctica, suggesting 'niche conservatism' occurs at a global scale. Mantel test was performed to further explore the correlations between endolithic microbial community and chemical composition of rocks, and showed significant positive correlations between bacterial communities and most of the major elements including Si, Al, Fe, Mg, P, K, and Ti. This study shows that endolithic communities are associated with the type of rock and its localities.
Conference Name
Microgravity conference in 2016
Conference Place
Conference Date
Appears in Collections  
2014-2016, Environmental Change Studies Based on The Arctic Dasan Station: in terms of Geology, Atmospheric Science, and Ecology (14-16) / Lee; Yookyung (PE14030; PE15030; PE16030)
Files in This Item

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.