TY - JOUR
T1 - Biodiversity of cryopegs in permafrost
AU - Gilichinsky, David
AU - Rivkina, Elizaveta
AU - Bakermans, Corien
AU - Shcherbakova, Viktoria
AU - Petrovskaya, Lada
AU - Ozerskaya, Svetlana
AU - Ivanushkina, Natalia
AU - Kochkina, Galina
AU - Laurinavichuis, Kyastus
AU - Pecheritsina, Svetlana
AU - Fattakhova, Rushania
AU - Tiedje, James M.
N1 - Funding Information:
This work was supported by Russian Fund for Basic Research (Grant Nos. 04-04-48257, 04-05-64226, 03-04-48719, 03-04-48565) and NASA Astrobiology Institute Program.
PY - 2005/6/1
Y1 - 2005/6/1
N2 - This study describes the biodiversity of the indigenous microbial community in the sodium-chloride water brines (cryopegs) derived from ancient marine sediments and sandwiched within permafrost 100-120,000 years ago after the Arctic Ocean regression. Cryopegs remain liquid at the in situ temperature of -9 to -11°C and make up the only habitat on the Earth that is characterized by permanently subzero temperatures, high salinity, and the absence of external influence during geological time. From these cryopegs, anaerobic and aerobic, spore-less and spore-forming, halotolerant and halophilic, psychrophilic and psychrotrophic bacteria, mycelial fungi and yeast were isolated and their activity was detected below 0°C.
AB - This study describes the biodiversity of the indigenous microbial community in the sodium-chloride water brines (cryopegs) derived from ancient marine sediments and sandwiched within permafrost 100-120,000 years ago after the Arctic Ocean regression. Cryopegs remain liquid at the in situ temperature of -9 to -11°C and make up the only habitat on the Earth that is characterized by permanently subzero temperatures, high salinity, and the absence of external influence during geological time. From these cryopegs, anaerobic and aerobic, spore-less and spore-forming, halotolerant and halophilic, psychrophilic and psychrotrophic bacteria, mycelial fungi and yeast were isolated and their activity was detected below 0°C.
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U2 - 10.1016/j.femsec.2005.02.003
DO - 10.1016/j.femsec.2005.02.003
M3 - Article
C2 - 16329934
AN - SCOPUS:21144442490
SN - 0168-6496
VL - 53
SP - 117
EP - 128
JO - FEMS microbiology ecology
JF - FEMS microbiology ecology
IS - 1
ER -