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Title: Comparison of Thaumarchaeotal populations from four deep sea basins

Journal Article · · FEMS Microbiology Ecology (Online)
 [1];  [2];  [2];  [3];  [4];  [4];  [5]
  1. Michigan Technological Univ., Houghton, MI (United States). Department of Biological Sciences
  2. Univ. of Tennessee, Knoxville, TN (United States). Department of Civil and Environmental Engineering
  3. Univ. of Tennessee, Knoxville, TN (United States). Center for Environmental Biotechnology and Bredesen Center
  4. Univ. of Tennessee, Knoxville, TN (United States). Department of Civil and Environmental Engineering and Center for Environmental Biotechnology
  5. Univ. of Tennessee, Knoxville, TN (United States). Department of Civil and Environmental Engineering, Center for Environmental Biotechnology, Bredesen Center, Department of Earth and Planetary Sciences, Department of Microbiology, and Institute for a Secure and Sustainable Environment; Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Biosciences Division
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The nitrogen cycle in the marine environment is strongly affected by ammonia-oxidizing Thaumarchaeota. In some marine settings, Thaumarchaeotes can comprise a large percentage of the prokaryotic population. To better understand the biogeographic patterns of Thaumarchaeotes, we sought to investigate differences in their abundance and phylogenetic diversity between geographically distinct basins. Samples were collected from four marine basins (The Caspian Sea, the Great Australian Bight, and the Central and Eastern Mediterranean). The concentration of bacterial and archaeal 16S rRNA genes and archaeal amoA genes were assessed using qPCR. Minimum entropy decomposition was used to elucidate the fine-scale diversity of Thaumarchaeotes. We demonstrated that there were significant differences in the abundance and diversity of Thaumarchaeotes between these four basins. The diversity of Thaumarchaeotal oligotypes differed between basins with many oligotypes only present in one of the four basins, which suggests that their distribution showed biogeographic patterning. There were also significant differences in Thaumarchaeotal community structure between these basins. This would suggest that geographically distant, yet geochemically similar basins may house distinct Thaumarchaeaotal populations. These findings suggest that Thaumarchaeota are very diverse and that biogeography in part contributes in determining the diversity and distribution of Thaumarchaeotes.

Research Organization:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States); Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
Sponsoring Organization:
USDOE Office of Science (SC)
Grant/Contract Number:
AC05-00OR22725; AC02-05CH11231
OSTI ID:
1415207
Alternate ID(s):
OSTI ID: 1479342
Journal Information:
FEMS Microbiology Ecology (Online), Vol. 93, Issue 11; ISSN 1574-6941
Publisher:
Federation of European Microbiological SocietiesCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 5 works
Citation information provided by
Web of Science

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Cited By (3)

Microbial Community Dynamics During Lake Ice Freezing journal April 2019
The Effect of Hydrostatic Pressure on Enrichments of Hydrocarbon Degrading Microbes From the Gulf of Mexico Following the Deepwater Horizon Oil Spill journal April 2018
Oil Hydrocarbon Degradation by Caspian Sea Microbial Communities journal May 2019

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59 BASIC BIOLOGICAL SCIENCES
54 ENVIRONMENTAL SCIENCES
Thaumarchaeota
qPCR
minimum entropy decomposition
biogeography