Culturable bacteria isolated from seven high-altitude ice cores on the Tibetan Plateau
Microorganisms are the most abundant organisms on Earth, and microbial abundance records preserved in ice cores have been connected to records of environmental change. As an alternative to high resolution abundance records, which can be difficult to recover, we used culture-dependent and culture-ind...
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Cambridge University Press
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ftdoajarticles:oai:doaj.org/article:d774f888161248258ad022f389385ead 2023-05-15T16:39:15+02:00 Culturable bacteria isolated from seven high-altitude ice cores on the Tibetan Plateau YONGQIN LIU JOHN C. PRISCU TANDONG YAO TRISTA J. VICK-MAJORS ALEXANDER B. MICHAUD LIANG SHENG 2019-02-01T00:00:00Z https://doi.org/10.1017/jog.2018.86 https://doaj.org/article/d774f888161248258ad022f389385ead EN eng Cambridge University Press https://www.cambridge.org/core/product/identifier/S0022143018000862/type/journal_article https://doaj.org/toc/0022-1430 https://doaj.org/toc/1727-5652 doi:10.1017/jog.2018.86 0022-1430 1727-5652 https://doaj.org/article/d774f888161248258ad022f389385ead Journal of Glaciology, Vol 65, Pp 29-38 (2019) ice core microbiology mountain glaciers Environmental sciences GE1-350 Meteorology. Climatology QC851-999 article 2019 ftdoajarticles https://doi.org/10.1017/jog.2018.86 2023-03-12T01:30:59Z Microorganisms are the most abundant organisms on Earth, and microbial abundance records preserved in ice cores have been connected to records of environmental change. As an alternative to high resolution abundance records, which can be difficult to recover, we used culture-dependent and culture-independent methods to examine bacteria in glacier ice from the Tibetan Plateau (TP). We recovered a total of 887 bacterial isolates from ice cores of up to 164 m in depth retrieved from seven glaciers, located across the TP. These isolates were related to 53 genera in the Actinobacteria, Firmicutes, Bacteroidetes, and Proteobacteria, with 13 major genera accounting for 78% of isolates. Most of the genera were common across the geographic region covered by our sampling, but there were differences in the genera recovered from different depths in the ice, with the deepest portions of the ice cores dominated by a single genus (Sporosarcina). Because microorganisms deposited on glaciers must survive atmospheric transport under a range of temperatures, temperature tolerance should be an important survival mechanism. We tested isolate growth across a range of temperatures (0–35 °C), and found psychrotolerance to be common. Together, our results show that ice depth, and by extension age, are characterized by different types of microorganisms, providing new information about microbial records in ice. Article in Journal/Newspaper ice core Journal of Glaciology Directory of Open Access Journals: DOAJ Articles Journal of Glaciology 65 249 29 38 |
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Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
ice core microbiology mountain glaciers Environmental sciences GE1-350 Meteorology. Climatology QC851-999 |
spellingShingle |
ice core microbiology mountain glaciers Environmental sciences GE1-350 Meteorology. Climatology QC851-999 YONGQIN LIU JOHN C. PRISCU TANDONG YAO TRISTA J. VICK-MAJORS ALEXANDER B. MICHAUD LIANG SHENG Culturable bacteria isolated from seven high-altitude ice cores on the Tibetan Plateau |
topic_facet |
ice core microbiology mountain glaciers Environmental sciences GE1-350 Meteorology. Climatology QC851-999 |
description |
Microorganisms are the most abundant organisms on Earth, and microbial abundance records preserved in ice cores have been connected to records of environmental change. As an alternative to high resolution abundance records, which can be difficult to recover, we used culture-dependent and culture-independent methods to examine bacteria in glacier ice from the Tibetan Plateau (TP). We recovered a total of 887 bacterial isolates from ice cores of up to 164 m in depth retrieved from seven glaciers, located across the TP. These isolates were related to 53 genera in the Actinobacteria, Firmicutes, Bacteroidetes, and Proteobacteria, with 13 major genera accounting for 78% of isolates. Most of the genera were common across the geographic region covered by our sampling, but there were differences in the genera recovered from different depths in the ice, with the deepest portions of the ice cores dominated by a single genus (Sporosarcina). Because microorganisms deposited on glaciers must survive atmospheric transport under a range of temperatures, temperature tolerance should be an important survival mechanism. We tested isolate growth across a range of temperatures (0–35 °C), and found psychrotolerance to be common. Together, our results show that ice depth, and by extension age, are characterized by different types of microorganisms, providing new information about microbial records in ice. |
format |
Article in Journal/Newspaper |
author |
YONGQIN LIU JOHN C. PRISCU TANDONG YAO TRISTA J. VICK-MAJORS ALEXANDER B. MICHAUD LIANG SHENG |
author_facet |
YONGQIN LIU JOHN C. PRISCU TANDONG YAO TRISTA J. VICK-MAJORS ALEXANDER B. MICHAUD LIANG SHENG |
author_sort |
YONGQIN LIU |
title |
Culturable bacteria isolated from seven high-altitude ice cores on the Tibetan Plateau |
title_short |
Culturable bacteria isolated from seven high-altitude ice cores on the Tibetan Plateau |
title_full |
Culturable bacteria isolated from seven high-altitude ice cores on the Tibetan Plateau |
title_fullStr |
Culturable bacteria isolated from seven high-altitude ice cores on the Tibetan Plateau |
title_full_unstemmed |
Culturable bacteria isolated from seven high-altitude ice cores on the Tibetan Plateau |
title_sort |
culturable bacteria isolated from seven high-altitude ice cores on the tibetan plateau |
publisher |
Cambridge University Press |
publishDate |
2019 |
url |
https://doi.org/10.1017/jog.2018.86 https://doaj.org/article/d774f888161248258ad022f389385ead |
genre |
ice core Journal of Glaciology |
genre_facet |
ice core Journal of Glaciology |
op_source |
Journal of Glaciology, Vol 65, Pp 29-38 (2019) |
op_relation |
https://www.cambridge.org/core/product/identifier/S0022143018000862/type/journal_article https://doaj.org/toc/0022-1430 https://doaj.org/toc/1727-5652 doi:10.1017/jog.2018.86 0022-1430 1727-5652 https://doaj.org/article/d774f888161248258ad022f389385ead |
op_doi |
https://doi.org/10.1017/jog.2018.86 |
container_title |
Journal of Glaciology |
container_volume |
65 |
container_issue |
249 |
container_start_page |
29 |
op_container_end_page |
38 |
_version_ |
1766029580901023744 |