Microbial membrane lipid adaptations to high hydrostatic pressure in the marine environment [PDF]
Frontiers in Molecular Biosciences, 2023 The deep-sea is characterized by extreme conditions, such as high hydrostatic pressure (HHP) and near-freezing temperature. Piezophiles, microorganisms adapted to high pressure, have developed key strategies to maintain the integrity of their lipid ...
Anandi Tamby +4 more
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The Mystery of Piezophiles: Understudied Microorganisms from the Deep, Dark Subsurface [PDF]
Microorganisms, 2023 Microorganisms that can withstand high pressure within an environment are termed piezophiles. These organisms are considered extremophiles and inhabit the deep marine or terrestrial subsurface.
Gabrielle Scheffer, Lisa M. Gieg
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Distinctive gene and protein characteristics of extremely piezophilic Colwellia [PDF]
BMC Genomics, 2020 Background The deep ocean is characterized by low temperatures, high hydrostatic pressures, and low concentrations of organic matter. While these conditions likely select for distinct genomic characteristics within prokaryotes, the attributes ...
Logan M. Peoples +8 more
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N-terminus GTPase domain of the cytoskeleton protein FtsZ plays a critical role in its adaptation to high hydrostatic pressure [PDF]
Frontiers in MicrobiologyStudies in model microorganisms showed that cell division is highly vulnerable to high hydrostatic pressure (HHP). Disassembly of FtsZ filaments induced by HHP results in the failure of cell division and formation of filamentous cells in E. coli.
Xue-Hua Cui +11 more
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Physiological and genomic features of Paraoceanicella profunda gen. nov., sp. nov., a novel piezophile isolated from deep seawater of the Mariana Trench [PDF]
MicrobiologyOpen, 2020 A novel piezophilic alphaproteobacterium, strain D4M1T, was isolated from deep seawater of the Mariana Trench. 16S rRNA gene analysis showed that strain D4M1T was most closely related to Oceanicella actignis PRQ‐67T (94.2%), Oceanibium sediminis O448T ...
Ping Liu +8 more
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Pressure Adaptations in Deep-Sea Moritella Dihydrofolate Reductases: Compressibility versus Stability [PDF]
Biology, 2021 Proteins from “pressure-loving” piezophiles appear to adapt by greater compressibility via larger total cavity volume. However, larger cavities in proteins have been associated with lower unfolding pressures.
Ryan W. Penhallurick, Toshiko Ichiye
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Adaptation Strategies to High Hydrostatic Pressures in Pseudothermotoga species Revealed by Transcriptional Analyses [PDF]
Microorganisms, 2023 Pseudothermotoga elfii strain DSM9442 and P. elfii subsp. lettingae strain DSM14385 are hyperthermophilic bacteria. P. elfii DSM9442 is a piezophile and was isolated from a depth of over 1600 m in an oil-producing well in Africa. P.
Romain Fenouil +12 more
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Molecular Responses to High Hydrostatic Pressure in Eukaryotes: Genetic Insights from Studies on Saccharomyces cerevisiae [PDF]
Biology, 2021 High hydrostatic pressure is common mechanical stress in nature and is also experienced by the human body. Organisms in the Challenger Deep of the Mariana Trench are habitually exposed to pressures up to 110 MPa.
Fumiyoshi Abe
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The Piezo-Hyperthermophilic Archaeon Thermococcus piezophilus Regulates Its Energy Efficiency System to Cope With Large Hydrostatic Pressure Variations [PDF]
Frontiers in Microbiology, 2021 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
Yann Moalic +16 more
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Rate and Extent of Growth of a Model Extremophile, Archaeoglobus fulgidus, Under High Hydrostatic Pressures [PDF]
Frontiers in Microbiology, 2020 High hydrostatic pressure (HHP) batch cultivation of a model extremophile, Archaeoglobus fulgidus type strain VC-16, was performed to explore how elevated pressures might affect microbial growth and physiology in the deep marine biosphere.
Gina C. Oliver +3 more
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