Factors controlling the distribution of archaeal tetraethers in terrestrial hot springs
Glycerol dialkyl glycerol tetraethers (GDGTs) found in hot springs reflect the abundance and community structure of Archaea in these extreme environments. The relationships between GDGTs, archaeal communities, and physical or geochemical variables are underexamined to date and when reported often re...
Published in: | Applied and Environmental Microbiology |
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American Society for Microbiology.
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Online Access: | https://doi.org/10.1128/AEM.02450-07 http://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0099-2240&volume=74&spage=3523&epage=3532&date=2008&atitle=Factors+controlling+the+distribution+of+archaeal+tetraethers+in+terrestrial+hot+springs http://hdl.handle.net/10722/124161 |
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ftunivhongkonghu:oai:hub.hku.hk:10722/124161 2023-05-15T16:59:25+02:00 Factors controlling the distribution of archaeal tetraethers in terrestrial hot springs Zhao, W Zhang, CL Li, S Romanek, C Perevalova, A Inskeep, W Li, Y Li, W Pi, Y Pearson, A 2008 https://doi.org/10.1128/AEM.02450-07 http://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0099-2240&volume=74&spage=3523&epage=3532&date=2008&atitle=Factors+controlling+the+distribution+of+archaeal+tetraethers+in+terrestrial+hot+springs http://hdl.handle.net/10722/124161 eng eng American Society for Microbiology. United States Applied and Environmental Microbiology http://www.scopus.com/mlt/select.url?eid=2-s2.0-44949100503&selection=ref&src=s&origin=recordpage Applied And Environmental Microbiology, 2008, v. 74 n. 11, p. 3523-3532 doi:10.1128/AEM.02450-07 3532 166838 WOS:000256460400024 0099-2240 11 http://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0099-2240&volume=74&spage=3523&epage=3532&date=2008&atitle=Factors+controlling+the+distribution+of+archaeal+tetraethers+in+terrestrial+hot+springs PMC2423032 18390673 eid_2-s2.0-44949100503 3523 http://hdl.handle.net/10722/124161 74 Applied and Environmental Microbiology. Copyright © American Society for Microbiology. Copyright © American Society for Microbiology, [insert journal name, volume number, page numbers, and year] Hot Springs - chemistry - microbiology Glyceryl Ethers - analysis China Crenarchaeota - chemistry - isolation and purification Soil - analysis Article 2008 ftunivhongkonghu https://doi.org/10.1128/AEM.02450-07 2023-01-14T15:33:36Z Glycerol dialkyl glycerol tetraethers (GDGTs) found in hot springs reflect the abundance and community structure of Archaea in these extreme environments. The relationships between GDGTs, archaeal communities, and physical or geochemical variables are underexamined to date and when reported often result in conflicting interpretations. Here, we examined profiles of GDGTs from pure cultures of Crenarchaeota and from terrestrial geothermal springs representing a wide distribution of locations, including Yellowstone National Park (United States), the Great Basin of Nevada and California (United States), Kamchatka (Russia), Tengchong thermal field (China), and Thailand. These samples had temperatures of 36.5 to 87°C and pH values of 3.0 to 9.2. GDGT abundances also were determined for three soil samples adjacent to some of the hot springs. Principal component analysis identified four factors that accounted for most of the variance among nine individual GDGTs, temperature, and pH. Significant correlations were observed between pH and the GDGTs crenarchaeol and GDGT-4 (four cyclopentane rings, m/z 1,294); pH correlated positively with crenarchaeol and inversely with GDGT-4. Weaker correlations were observed between temperature and the four factors. Three of the four GDGTs used in the marine TEX86 paleotemperature index (GDGT-1 to -3, but not crenarchaeol isomer) were associated with a single factor. No correlation was observed for GDGT-O (acyclic caldarchaeol): it is effectively its own variable. The biosynthetic mechanisms and exact archaeal community structures leading to these relationships remain unknown. However, the data in general show promise for the continued development of GDGT lipid-based physiochemical proxies for archaeal evolution and for paleo-ecology or paleoclimate studies. Copyright © 2008, American Society for Microbiology. All Rights Reserved. link_to_OA_fulltext Article in Journal/Newspaper Kamchatka University of Hong Kong: HKU Scholars Hub Applied and Environmental Microbiology 74 11 3523 3532 |
institution |
Open Polar |
collection |
University of Hong Kong: HKU Scholars Hub |
op_collection_id |
ftunivhongkonghu |
language |
English |
topic |
Hot Springs - chemistry - microbiology Glyceryl Ethers - analysis China Crenarchaeota - chemistry - isolation and purification Soil - analysis |
spellingShingle |
Hot Springs - chemistry - microbiology Glyceryl Ethers - analysis China Crenarchaeota - chemistry - isolation and purification Soil - analysis Zhao, W Zhang, CL Li, S Romanek, C Perevalova, A Inskeep, W Li, Y Li, W Pi, Y Pearson, A Factors controlling the distribution of archaeal tetraethers in terrestrial hot springs |
topic_facet |
Hot Springs - chemistry - microbiology Glyceryl Ethers - analysis China Crenarchaeota - chemistry - isolation and purification Soil - analysis |
description |
Glycerol dialkyl glycerol tetraethers (GDGTs) found in hot springs reflect the abundance and community structure of Archaea in these extreme environments. The relationships between GDGTs, archaeal communities, and physical or geochemical variables are underexamined to date and when reported often result in conflicting interpretations. Here, we examined profiles of GDGTs from pure cultures of Crenarchaeota and from terrestrial geothermal springs representing a wide distribution of locations, including Yellowstone National Park (United States), the Great Basin of Nevada and California (United States), Kamchatka (Russia), Tengchong thermal field (China), and Thailand. These samples had temperatures of 36.5 to 87°C and pH values of 3.0 to 9.2. GDGT abundances also were determined for three soil samples adjacent to some of the hot springs. Principal component analysis identified four factors that accounted for most of the variance among nine individual GDGTs, temperature, and pH. Significant correlations were observed between pH and the GDGTs crenarchaeol and GDGT-4 (four cyclopentane rings, m/z 1,294); pH correlated positively with crenarchaeol and inversely with GDGT-4. Weaker correlations were observed between temperature and the four factors. Three of the four GDGTs used in the marine TEX86 paleotemperature index (GDGT-1 to -3, but not crenarchaeol isomer) were associated with a single factor. No correlation was observed for GDGT-O (acyclic caldarchaeol): it is effectively its own variable. The biosynthetic mechanisms and exact archaeal community structures leading to these relationships remain unknown. However, the data in general show promise for the continued development of GDGT lipid-based physiochemical proxies for archaeal evolution and for paleo-ecology or paleoclimate studies. Copyright © 2008, American Society for Microbiology. All Rights Reserved. link_to_OA_fulltext |
format |
Article in Journal/Newspaper |
author |
Zhao, W Zhang, CL Li, S Romanek, C Perevalova, A Inskeep, W Li, Y Li, W Pi, Y Pearson, A |
author_facet |
Zhao, W Zhang, CL Li, S Romanek, C Perevalova, A Inskeep, W Li, Y Li, W Pi, Y Pearson, A |
author_sort |
Zhao, W |
title |
Factors controlling the distribution of archaeal tetraethers in terrestrial hot springs |
title_short |
Factors controlling the distribution of archaeal tetraethers in terrestrial hot springs |
title_full |
Factors controlling the distribution of archaeal tetraethers in terrestrial hot springs |
title_fullStr |
Factors controlling the distribution of archaeal tetraethers in terrestrial hot springs |
title_full_unstemmed |
Factors controlling the distribution of archaeal tetraethers in terrestrial hot springs |
title_sort |
factors controlling the distribution of archaeal tetraethers in terrestrial hot springs |
publisher |
American Society for Microbiology. |
publishDate |
2008 |
url |
https://doi.org/10.1128/AEM.02450-07 http://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0099-2240&volume=74&spage=3523&epage=3532&date=2008&atitle=Factors+controlling+the+distribution+of+archaeal+tetraethers+in+terrestrial+hot+springs http://hdl.handle.net/10722/124161 |
genre |
Kamchatka |
genre_facet |
Kamchatka |
op_relation |
Applied and Environmental Microbiology http://www.scopus.com/mlt/select.url?eid=2-s2.0-44949100503&selection=ref&src=s&origin=recordpage Applied And Environmental Microbiology, 2008, v. 74 n. 11, p. 3523-3532 doi:10.1128/AEM.02450-07 3532 166838 WOS:000256460400024 0099-2240 11 http://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0099-2240&volume=74&spage=3523&epage=3532&date=2008&atitle=Factors+controlling+the+distribution+of+archaeal+tetraethers+in+terrestrial+hot+springs PMC2423032 18390673 eid_2-s2.0-44949100503 3523 http://hdl.handle.net/10722/124161 74 |
op_rights |
Applied and Environmental Microbiology. Copyright © American Society for Microbiology. Copyright © American Society for Microbiology, [insert journal name, volume number, page numbers, and year] |
op_doi |
https://doi.org/10.1128/AEM.02450-07 |
container_title |
Applied and Environmental Microbiology |
container_volume |
74 |
container_issue |
11 |
container_start_page |
3523 |
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3532 |
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1766051679618203648 |