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Zeitschrift für Physikalische Chemie

International journal of research in physical chemistry and chemical physics

Editor-in-Chief: Rademann, Klaus

12 Issues per year


IMPACT FACTOR 2016: 1.012

CiteScore 2016: 0.99

SCImago Journal Rank (SJR) 2016: 0.463
Source Normalized Impact per Paper (SNIP) 2016: 0.470

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2196-7156
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Volume 228, Issue 10-12 (Dec 2014)

Issues

Deep Sea Microbes Probed by Incoherent Neutron Scattering Under High Hydrostatic Pressure

Judith Peters
  • Corresponding author
  • Univ. Grenoble Alpes, IBS, F-38044 Grenoble, France
  • Institut Laue Langevin, F-38042 Grenoble Cedex 9, France
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  • Other articles by this author:
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/ Nicolas Martinez
  • Univ. Grenoble Alpes, IBS, F-38044 Grenoble, France
  • Institut Laue Langevin, F-38042 Grenoble Cedex 9, France
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/ Grégoire Michoud
  • Laboratoire de Microbiologie des Environnements Extrêmes, UMR 6197, CNRS Ifremer UBO, IUEM Technopole Brest-Iroise, F-29280 Plouzane, France
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/ Anaïs Cario
  • Laboratoire de Géologie de Lyon, UMR CNRS 5276, Ecole Normale Supérieure de Lyon, F-69364 LYON cedex 07, France
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/ Bruno Franzetti / Philippe Oger
  • Laboratoire de Géologie de Lyon, UMR CNRS 5276, Ecole Normale Supérieure de Lyon, F-69364 LYON cedex 07, France
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/ Mohamed Jebbar
  • Laboratoire de Microbiologie des Environnements Extrêmes, UMR 6197, CNRS Ifremer UBO, IUEM Technopole Brest-Iroise, F-29280 Plouzane, France
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Published Online: 2014-07-22 | DOI: https://doi.org/10.1515/zpch-2014-0547

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.

Keywords: Neutron Scattering; Molecular Dynamics; High Pressure; Deep Sea Microbes

About the article

Accepted: 2014-07-08

Received: 2014-06-03

Published Online: 2014-07-22

Published in Print: 2014-12-28


Citation Information: Zeitschrift für Physikalische Chemie, ISSN (Online) 2196-7156, ISSN (Print) 0942-9352, DOI: https://doi.org/10.1515/zpch-2014-0547.

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©2014 Walter de Gruyter Berlin/Boston. Copyright Clearance Center

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