Interactions between temperature and energy supply drive microbial communities in hydrothermal sediment.

Lagostina, Lorenzo, Frandsen, Søs, MacGregor, Barbara J., Glombitza, Clemens, Deng, Longhui, Fiskal, Annika, Li, Jiaqi, Doll, Mechthild, Geilert, Sonja , Schmidt, Mark , Scholz, Florian, Bernasconi, Stefano Michele, Jørgensen, Bo Barker, Hensen, Christian , Teske, Andreas and Lever, Mark Alexander (2021) Interactions between temperature and energy supply drive microbial communities in hydrothermal sediment. Open Access Communications Biology, 4 . Art.Nr. 1006. DOI 10.1038/s42003-021-02507-1.

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Supplementary data:

Abstract

Temperature and bioavailable energy control the distribution of life on Earth, and interact with each other due to the dependency of biological energy requirements on temperature. Here we analyze how temperature-energy interactions structure sediment microbial communities in two hydrothermally active areas of Guaymas Basin. Sites from one area experience advective input of thermogenically produced electron donors by seepage from deeper layers, whereas sites from the other area are diffusion-dominated and electron donor-depleted. In both locations, Archaea dominate at temperatures >45 °C and Bacteria at temperatures <10 °C. Yet, at the phylum level and below, there are clear differences. Hot seep sites have high proportions of typical hydrothermal vent and hot spring taxa. By contrast, high-temperature sites without seepage harbor mainly novel taxa belonging to phyla that are widespread in cold subseafloor sediment. Our results suggest that in hydrothermal sediments temperature determines domain-level dominance, whereas temperature-energy interactions structure microbial communities at the phylum-level and below.

Document Type: Article
Keywords: Microbial life in anaerobe deep sea sediment, evolutionary history of bacteria and archaea, Gulf of California, Guaymas Basin
Research affiliation: OceanRep > GEOMAR > FB2 Marine Biogeochemistry > FB2-MG Marine Geosystems
Main POF Topic: PT6: Marine Life
Refereed: Yes
Open Access Journal?: Yes
Publisher: Nature Research
Projects: MAKS, FLOWS
Expeditions/Models/Experiments:
Date Deposited: 31 Aug 2021 13:38
Last Modified: 07 Feb 2024 15:37
URI: https://oceanrep.geomar.de/id/eprint/53918

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