Dataset Information

The Piezo-Hyperthermophilic Archaeon Thermococcus piezophilus Regulates Its Energy Efficiency System to Cope With Large Hydrostatic Pressure Variations.

ABSTRACT: Deep-sea ecosystems share a common physical parameter, namely high hydrostatic pressure (HHP). Some of the microorganisms isolated at great depths have a high physiological plasticity to face pressure variations. The adaptive strategies by which deep-sea microorganisms cope with HHP variations remain to be elucidated, especially considering the extent of their biotopes on Earth. Herein, we investigated the gene expression patterns of Thermococcus piezophilus, a piezohyperthermophilic archaeon isolated from the deepest hydrothermal vent known to date, under sub-optimal, optimal and supra-optimal pressures (0.1, 50, and 90 MPa, respectively). At stressful pressures [sub-optimal (0.1 MPa) and supra-optimal (90 MPa) conditions], no classical stress response was observed. Instead, we observed an unexpected transcriptional modulation of more than a hundred gene clusters, under the putative control of the master transcriptional regulator SurR, some of which are described as being involved in energy metabolism. This suggests a fine-tuning effect of HHP on the SurR regulon. Pressure could act on gene regulation, in addition to modulating their expression.

SUBMITTER: Moalic Y

PROVIDER: S-EPMC8595942 | biostudies-literature | 2021

REPOSITORIES: biostudies-literature

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The Piezo-Hyperthermophilic Archaeon <i>Thermococcus piezophilus</i> Regulates Its Energy Efficiency System to Cope With Large Hydrostatic Pressure Variations.

Moalic Yann Y Hartunians Jordan J Dalmasso Cécile C Courtine Damien D Georges Myriam M Oger Philippe P Shao Zongze Z Jebbar Mohamed M Alain Karine K

Frontiers in microbiology 20211103

Deep-sea ecosystems share a common physical parameter, namely high hydrostatic pressure (HHP). Some of the microorganisms isolated at great depths have a high physiological plasticity to face pressure variations. The adaptive strategies by which deep-sea microorganisms cope with HHP variations remain to be elucidated, especially considering the extent of their biotopes on Earth. Herein, we investigated the gene expression patterns of <i>Thermococcus piezophilus</i>, a piezohyperthermophilic arch ...[more]

PMID: 34803948

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Dataset Information

The Piezo-Hyperthermophilic Archaeon Thermococcus piezophilus Regulates Its Energy Efficiency System to Cope With Large Hydrostatic Pressure Variations.

Publications

The Piezo-Hyperthermophilic Archaeon <i>Thermococcus piezophilus</i> Regulates Its Energy Efficiency System to Cope With Large Hydrostatic Pressure Variations.

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