Microbial taxonomic diversity and adaptation mechanisms in lithic ecosystems of the northern Victoria Land, Antarctica
Abstract
Rock is one of the best habitat for microorganisms in Antarctica, providing the good condition to avoid strong sunlight and wind. Furthermore, geochemistry in rock can provide as nutrients for microorganisms. Barren rock can be considered as an ecosystem by fouling, which is defined as the settlement of organisms and their growth. These life forms have the specialized mechanism to adapt the harsh environmental conditions such as a below subzero temperature, a unique annual light/dark cycle, wind chill and limited water availability and nutrient supply. However, little is known about the microbial communities and their adaptation mechanisms in this harsh environments. In this study, we focus on the microbial ecology in order to understand what kind of microorganisms are present based on culture-dependent and -independent methods collected barren rock samples from the northern Victoria Land, Antarctica. Additionally, we present the complete genome sequence of Cryobacterium arcticum PAMC 27867, one of the isolates from these rock samples, in order to understand the microbial adaptation strategies in lithic ecosystems, Antarctica.
- Publication:
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AGU Fall Meeting Abstracts
- Pub Date:
- December 2016
- Bibcode:
- 2016AGUFM.B14D..05K
- Keywords:
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- 0419 Biomineralization;
- BIOGEOSCIENCESDE: 1039 Alteration and weathering processes;
- GEOCHEMISTRYDE: 1040 Radiogenic isotope geochemistry;
- GEOCHEMISTRYDE: 1041 Stable isotope geochemistry;
- GEOCHEMISTRY