Deep Sea Microbes Probed by Incoherent Neutron Scattering Under High Hydrostatic Pressure
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Judith Peters
,
Nicolas Martinez
Abstract
The majority of the biosphere is a high pressure environment. Around 70% of the marine biosphere lies at depths below 1000 m, i.e. at pressures of 100 bars or higher. To survive in these environments, deep-biosphere organisms have adapted to life at high pressure. In vitro studies showed that the activity of certain proteins originating from deep-sea organisms is less affected by high pressure than that of enzymes from surface organisms . However, the genetic and structural bases for this increased pressure resistance are still unknown. Elastic incoherent neutron scattering studies, which provide access to information about molecular dynamics, constitute a very promising approach to decipher the structural adaptation in proteins living under high pressure. This approach has been used in the past to investigate the adaptation of biological systems to temperature and salinity and proved to be essential and complementary to structural studies. Here first investigations of high pressure effects on cell dynamics are presented using Thermococcales as models.
©2014 Walter de Gruyter Berlin/Boston
Articles in the same Issue
- Frontmatter
- Editorial
- Special Issue Commemorating the Paper “The Diffraction of X-rays by Crystals” by William Lawrence Bragg (ZPC, 104, 337–348 (1923); Nobel Lecture, September 6, 1922)
- Historical Paper
- The Diffraction of X-rays by Crystals
- Packing Effects of N-Ras Binding to a DOPC Membrane – a Neutron Reflectivity and TIRF Spectroscopy High-Pressure Study
- High Pressure X-ray Studies of Lipid Membranes and Lipid Phase Transitions
- Microscopic Structure Analysis in Disordered Materials using Anomalous X-ray Scattering
- Comparison of the Microstructure of Stimuli Responsive Zwitterionic PNIPAM-co-Sulfobetaine Microgels with PNIPAM Microgels and Classical Hard-Sphere Systems
- The Internal Network Dynamics of Poly(NIPAM) Based Copolymer Micro- and Macrogels: A Comparative Neutron Spin-Echo Study
- Configuration Determination of Transition Metal Complexes by Multiple Scattering EXAFS Analysis: A Case Study
- Review Article
- Ptychographic X-ray Microscopy with the Vacuum Imaging Apparatus HORST
- The Interaction of Bio-Molecules with Lipid Membranes Studied by X-ray Diffraction
- Deep Sea Microbes Probed by Incoherent Neutron Scattering Under High Hydrostatic Pressure
- X-ray Reflectometry and Related Surface Near X-ray Scattering Methods
Articles in the same Issue
- Frontmatter
- Editorial
- Special Issue Commemorating the Paper “The Diffraction of X-rays by Crystals” by William Lawrence Bragg (ZPC, 104, 337–348 (1923); Nobel Lecture, September 6, 1922)
- Historical Paper
- The Diffraction of X-rays by Crystals
- Packing Effects of N-Ras Binding to a DOPC Membrane – a Neutron Reflectivity and TIRF Spectroscopy High-Pressure Study
- High Pressure X-ray Studies of Lipid Membranes and Lipid Phase Transitions
- Microscopic Structure Analysis in Disordered Materials using Anomalous X-ray Scattering
- Comparison of the Microstructure of Stimuli Responsive Zwitterionic PNIPAM-co-Sulfobetaine Microgels with PNIPAM Microgels and Classical Hard-Sphere Systems
- The Internal Network Dynamics of Poly(NIPAM) Based Copolymer Micro- and Macrogels: A Comparative Neutron Spin-Echo Study
- Configuration Determination of Transition Metal Complexes by Multiple Scattering EXAFS Analysis: A Case Study
- Review Article
- Ptychographic X-ray Microscopy with the Vacuum Imaging Apparatus HORST
- The Interaction of Bio-Molecules with Lipid Membranes Studied by X-ray Diffraction
- Deep Sea Microbes Probed by Incoherent Neutron Scattering Under High Hydrostatic Pressure
- X-ray Reflectometry and Related Surface Near X-ray Scattering Methods
