Tectonic and geological setting influence hot spring microbiology.

Autor: Colman DR; Department of Microbiology and Cell Biology, Montana State University, Bozeman, Montana, USA., Veach A; Department of Integrative Biology, University of Texas at San Antonio, San Antonio, Texas, USA., Stefánsson A; Institute of Earth Sciences, University of Iceland, Reykjavik, Iceland., Wurch L; Biosciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee, USA.; Department of Biology, James Madison University, Harrisonburg, Virginia, USA., Belisle BS; Biosciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee, USA., Podar PT; School of Engineering, Vanderbilt University, Nashville, Tennessee, USA., Yang Z; Biosciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee, USA., Klingeman D; Biosciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee, USA., Senba K; Department of Microbiology, Beppu University, Beppu, Oita, Japan., Murakami KS; Department of Biochemistry and Molecular Biology, Pennsylvania State University, University Park, State College, Pennsylvania, USA., Kristjánsson JK; Hripa ehf, Budardalur, Iceland., Björnsdóttir SH; Life and Environmental Sciences, University of Iceland, Reykjavik, Iceland., Boyd ES; Department of Microbiology and Cell Biology, Montana State University, Bozeman, Montana, USA., Podar M; Biosciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee, USA.
Jazyk: angličtina
Zdroj: Environmental microbiology [Environ Microbiol] 2023 Nov; Vol. 25 (11), pp. 2481-2497. Date of Electronic Publication: 2023 Aug 08.
DOI: 10.1111/1462-2920.16472
Abstrakt: Hydrothermal systems form at divergent and convergent boundaries of lithospheric plates and within plates due to weakened crust and mantle plumes, playing host to diverse microbial ecosystems. Little is known of how differences in tectonic setting influence the geochemical and microbial compositions of these hydrothermal ecosystems. Here, coordinated geochemical and microbial community analyses were conducted on 87 high-temperature (>65°C) water and sediment samples from hot springs in Yellowstone National Park, Wyoming, USA (n = 41; mantle plume setting), Iceland (n = 41, divergent boundary), and Japan (n = 5; convergent boundary). Region-specific variation in geochemistry and sediment-associated 16S rRNA gene amplicon sequence variant (ASV) composition was observed, with 16S rRNA gene assemblages being nearly completely distinguished by region and pH being the most explanatory parameter within regions. Several low abundance ASVs exhibited cosmopolitan distributions across regions, while most high-abundance ASVs were only identified in specific regions. The presence of some cosmopolitan ASVs across regions argues against dispersal limitation primarily shaping the distribution of taxa among regions. Rather, the results point to local tectonic and geologic characteristics shaping the geochemistry of continental hydrothermal systems that then select for distinct microbial assemblages. These results provide new insights into the co-evolution of hydrothermal systems and their microbial communities.
(© 2023 Applied Microbiology International and John Wiley & Sons Ltd.)
Databáze: MEDLINE
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