کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9437715 | 1299850 | 2005 | 12 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Biodiversity of cryopegs in permafrost
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کلمات کلیدی
موضوعات مرتبط
علوم زیستی و بیوفناوری
علوم محیط زیست
بوم شناسی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
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 â9 to â11 °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.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: FEMS Microbiology Ecology - Volume 53, Issue 1, 1 June 2005, Pages 117-128
Journal: FEMS Microbiology Ecology - Volume 53, Issue 1, 1 June 2005, Pages 117-128
نویسندگان
David Gilichinsky, Elizaveta Rivkina, Corien Bakermans, Viktoria Shcherbakova, Lada Petrovskaya, Svetlana Ozerskaya, Natalia Ivanushkina, Galina Kochkina, Kyastus Laurinavichuis, Svetlana Pecheritsina, Rushania Fattakhova, James M. Tiedje,