Details
| Original language | English |
|---|---|
| Article number | wrae173 |
| Journal | ISME Journal |
| Volume | 18 |
| Issue number | 1 |
| Early online date | 14 Sept 2024 |
| Publication status | Published - 2024 |
Abstract
Chemolithoautotrophic Hydrogenovibrio are ubiquitous and abundant at hydrothermal vents. They can oxidize sulfur, hydrogen, or iron, but none are known to use all three energy sources. This ability though would be advantageous in vents hallmarked by highly dynamic environmental conditions. We isolated three Hydrogenovibrio strains from vents along the Indian Ridge, which grow on all three electron donors. We present transcriptomic data from strains grown on iron, hydrogen, or thiosulfate with respective oxidation and autotrophic carbon dioxide (CO2) fixation rates, RubisCO activity, SEM, and EDX. Maximum estimates of one strain’s oxidation potential were 10, 24, and 952 mmol for iron, hydrogen, and thiosulfate oxidation and 0.3, 1, and 84 mmol CO2 fixation, respectively, per vent per hour indicating their relevance for element cycling in-situ. Several genes were up- or downregulated depending on the inorganic electron donor provided. Although no known genes of iron-oxidation were detected, upregulated transcripts suggested iron-acquisition and so far unknown iron-oxidation-pathways.
Keywords
- autotrophic CO fixation: Indian ridge, chemolithoautotrophy, hydrogen oxidizer, Hydrogenovibrio, hydrothermal vent environment bacteria, iron oxidizer, sulfur oxidizer
ASJC Scopus subject areas
- Immunology and Microbiology(all)
- Microbiology
- Agricultural and Biological Sciences(all)
- Ecology, Evolution, Behavior and Systematics
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In: ISME Journal, Vol. 18, No. 1, wrae173, 2024.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Oxidation of sulfur, hydrogen, and iron by metabolically versatile Hydrogenovibrio from deep sea hydrothermal vents
AU - Laufer-Meiser, Katja
AU - Alawi, Malik
AU - Böhnke, Stefanie
AU - Solterbeck, Claus Henning
AU - Schloesser, Jana
AU - Schippers, Axel
AU - Dirksen, Philipp
AU - Brüser, Thomas
AU - Henkel, Susann
AU - Fuss, Janina
AU - Perner, Mirjam
N1 - Publisher Copyright: © The Author(s) 2024.
PY - 2024
Y1 - 2024
N2 - Chemolithoautotrophic Hydrogenovibrio are ubiquitous and abundant at hydrothermal vents. They can oxidize sulfur, hydrogen, or iron, but none are known to use all three energy sources. This ability though would be advantageous in vents hallmarked by highly dynamic environmental conditions. We isolated three Hydrogenovibrio strains from vents along the Indian Ridge, which grow on all three electron donors. We present transcriptomic data from strains grown on iron, hydrogen, or thiosulfate with respective oxidation and autotrophic carbon dioxide (CO2) fixation rates, RubisCO activity, SEM, and EDX. Maximum estimates of one strain’s oxidation potential were 10, 24, and 952 mmol for iron, hydrogen, and thiosulfate oxidation and 0.3, 1, and 84 mmol CO2 fixation, respectively, per vent per hour indicating their relevance for element cycling in-situ. Several genes were up- or downregulated depending on the inorganic electron donor provided. Although no known genes of iron-oxidation were detected, upregulated transcripts suggested iron-acquisition and so far unknown iron-oxidation-pathways.
AB - Chemolithoautotrophic Hydrogenovibrio are ubiquitous and abundant at hydrothermal vents. They can oxidize sulfur, hydrogen, or iron, but none are known to use all three energy sources. This ability though would be advantageous in vents hallmarked by highly dynamic environmental conditions. We isolated three Hydrogenovibrio strains from vents along the Indian Ridge, which grow on all three electron donors. We present transcriptomic data from strains grown on iron, hydrogen, or thiosulfate with respective oxidation and autotrophic carbon dioxide (CO2) fixation rates, RubisCO activity, SEM, and EDX. Maximum estimates of one strain’s oxidation potential were 10, 24, and 952 mmol for iron, hydrogen, and thiosulfate oxidation and 0.3, 1, and 84 mmol CO2 fixation, respectively, per vent per hour indicating their relevance for element cycling in-situ. Several genes were up- or downregulated depending on the inorganic electron donor provided. Although no known genes of iron-oxidation were detected, upregulated transcripts suggested iron-acquisition and so far unknown iron-oxidation-pathways.
KW - autotrophic CO fixation: Indian ridge
KW - chemolithoautotrophy
KW - hydrogen oxidizer
KW - Hydrogenovibrio
KW - hydrothermal vent environment bacteria
KW - iron oxidizer
KW - sulfur oxidizer
UR - http://www.scopus.com/inward/record.url?scp=85205401588&partnerID=8YFLogxK
U2 - 10.1093/ismejo/wrae173
DO - 10.1093/ismejo/wrae173
M3 - Article
C2 - 39276367
AN - SCOPUS:85205401588
VL - 18
JO - ISME Journal
JF - ISME Journal
SN - 1751-7362
IS - 1
M1 - wrae173
ER -