Analysis of the microbial community and geochemistry of a sediment core from Great Slave Lake, Canada
Sediment cores taken from Great SlaveLake, Canada, were analysed to investigate theirmetabolically active microbial populations and geochemistry. The amplification of cDNA detectedmetabolically active bacterial (50 separate bands)and archaeal (49 separate band) communities. The bacterial communities...
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Online Access: | https://nrl.northumbria.ac.uk/id/eprint/4116/ https://doi.org/10.1007/s10482-010-9500-y |
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ftunivnorthumb:oai:nrl.northumbria.ac.uk:4116 2023-05-15T16:23:06+02:00 Analysis of the microbial community and geochemistry of a sediment core from Great Slave Lake, Canada Lim, Jesmine Woodward, John Tulaczyk, Slawek Christoffersen, Poul Cummings, Stephen 2011 https://nrl.northumbria.ac.uk/id/eprint/4116/ https://doi.org/10.1007/s10482-010-9500-y unknown Springer Lim, Jesmine, Woodward, John, Tulaczyk, Slawek, Christoffersen, Poul and Cummings, Stephen (2011) Analysis of the microbial community and geochemistry of a sediment core from Great Slave Lake, Canada. Antonie van Leeuwenhoek, 99 (2). pp. 423-430. ISSN 0003-6072 C700 Molecular Biology Biophysics and Biochemistry C900 Others in Biological Sciences Article PeerReviewed 2011 ftunivnorthumb https://doi.org/10.1007/s10482-010-9500-y 2022-09-25T05:52:22Z Sediment cores taken from Great SlaveLake, Canada, were analysed to investigate theirmetabolically active microbial populations and geochemistry. The amplification of cDNA detectedmetabolically active bacterial (50 separate bands)and archaeal (49 separate band) communities. The bacterial communities were further resolved indicating active actinobacterial and c-proteobacterial communities(36 and 43 individual bands respectively).Redundancy discriminate analysis and Monte Carlopermutation testing demonstrated the significantimpact of geochemical parameters on microbial community structures. Geochemical analyses suggest that the upper 0.4 m represents soil weathering and erosion in the lake catchment. An increase in organic carbon in the lower core suggests either more primary productivity, indicating warmer climate conditions, associated with Holocene Climatic Optimum conditions pre 5,000 years BP or change from a reducing environment in the lower core to an oxidizing environment during more recent deposition. Drivers for bacterial, archaeal and actinobacterial community structures were sediment particle size, and its mineral composition. Depth also significantly affected cproteobacterial community structure. In contrast the organic carbon content did not significantly shape the microbial community structures within the sediment. This study indicates that geochemical parameters significantly contribute to microbial community structure in these sediments. Article in Journal/Newspaper Great Slave Lake Northumbria University, Newcastle: Northumbria Research Link (NRL) Canada Great Slave Lake ENVELOPE(-114.001,-114.001,61.500,61.500) Antonie van Leeuwenhoek 99 2 423 430 |
institution |
Open Polar |
collection |
Northumbria University, Newcastle: Northumbria Research Link (NRL) |
op_collection_id |
ftunivnorthumb |
language |
unknown |
topic |
C700 Molecular Biology Biophysics and Biochemistry C900 Others in Biological Sciences |
spellingShingle |
C700 Molecular Biology Biophysics and Biochemistry C900 Others in Biological Sciences Lim, Jesmine Woodward, John Tulaczyk, Slawek Christoffersen, Poul Cummings, Stephen Analysis of the microbial community and geochemistry of a sediment core from Great Slave Lake, Canada |
topic_facet |
C700 Molecular Biology Biophysics and Biochemistry C900 Others in Biological Sciences |
description |
Sediment cores taken from Great SlaveLake, Canada, were analysed to investigate theirmetabolically active microbial populations and geochemistry. The amplification of cDNA detectedmetabolically active bacterial (50 separate bands)and archaeal (49 separate band) communities. The bacterial communities were further resolved indicating active actinobacterial and c-proteobacterial communities(36 and 43 individual bands respectively).Redundancy discriminate analysis and Monte Carlopermutation testing demonstrated the significantimpact of geochemical parameters on microbial community structures. Geochemical analyses suggest that the upper 0.4 m represents soil weathering and erosion in the lake catchment. An increase in organic carbon in the lower core suggests either more primary productivity, indicating warmer climate conditions, associated with Holocene Climatic Optimum conditions pre 5,000 years BP or change from a reducing environment in the lower core to an oxidizing environment during more recent deposition. Drivers for bacterial, archaeal and actinobacterial community structures were sediment particle size, and its mineral composition. Depth also significantly affected cproteobacterial community structure. In contrast the organic carbon content did not significantly shape the microbial community structures within the sediment. This study indicates that geochemical parameters significantly contribute to microbial community structure in these sediments. |
format |
Article in Journal/Newspaper |
author |
Lim, Jesmine Woodward, John Tulaczyk, Slawek Christoffersen, Poul Cummings, Stephen |
author_facet |
Lim, Jesmine Woodward, John Tulaczyk, Slawek Christoffersen, Poul Cummings, Stephen |
author_sort |
Lim, Jesmine |
title |
Analysis of the microbial community and geochemistry of a sediment core from Great Slave Lake, Canada |
title_short |
Analysis of the microbial community and geochemistry of a sediment core from Great Slave Lake, Canada |
title_full |
Analysis of the microbial community and geochemistry of a sediment core from Great Slave Lake, Canada |
title_fullStr |
Analysis of the microbial community and geochemistry of a sediment core from Great Slave Lake, Canada |
title_full_unstemmed |
Analysis of the microbial community and geochemistry of a sediment core from Great Slave Lake, Canada |
title_sort |
analysis of the microbial community and geochemistry of a sediment core from great slave lake, canada |
publisher |
Springer |
publishDate |
2011 |
url |
https://nrl.northumbria.ac.uk/id/eprint/4116/ https://doi.org/10.1007/s10482-010-9500-y |
long_lat |
ENVELOPE(-114.001,-114.001,61.500,61.500) |
geographic |
Canada Great Slave Lake |
geographic_facet |
Canada Great Slave Lake |
genre |
Great Slave Lake |
genre_facet |
Great Slave Lake |
op_relation |
Lim, Jesmine, Woodward, John, Tulaczyk, Slawek, Christoffersen, Poul and Cummings, Stephen (2011) Analysis of the microbial community and geochemistry of a sediment core from Great Slave Lake, Canada. Antonie van Leeuwenhoek, 99 (2). pp. 423-430. ISSN 0003-6072 |
op_doi |
https://doi.org/10.1007/s10482-010-9500-y |
container_title |
Antonie van Leeuwenhoek |
container_volume |
99 |
container_issue |
2 |
container_start_page |
423 |
op_container_end_page |
430 |
_version_ |
1766011282602852352 |