Production of carbon-containing pyrite spherules induced by hyperthermophilic Thermococcales: a biosignature?
| dc.rights.license | open | en_US |
| hal.structure.identifier | Research On Carbon-rich Key Samples [IMPMC] [IMPMC_ROCKS] | |
| dc.contributor.author | TRUONG, Chloé | |
| hal.structure.identifier | Research On Carbon-rich Key Samples [IMPMC] [IMPMC_ROCKS] | |
| dc.contributor.author | BERNARD, Sylvain | |
| hal.structure.identifier | Minéralogie Environnementale [IMPMC] [IMPMC_MINENV] | |
| dc.contributor.author | MORIN, Guillaume | |
| hal.structure.identifier | Minéralogie Environnementale [IMPMC] [IMPMC_MINENV] | |
| dc.contributor.author | LE PAPE, Pierre | |
| hal.structure.identifier | Minéralogie Environnementale [IMPMC] [IMPMC_MINENV] | |
| dc.contributor.author | BAYA, Camille | |
| hal.structure.identifier | Environnements et Paléoenvironnements OCéaniques [EPOC] | |
| dc.contributor.author | MERROT, Pauline | |
| hal.structure.identifier | Institut de Biologie Intégrative de la Cellule [I2BC] | |
| dc.contributor.author | GORLAS, Aurore | |
| hal.structure.identifier | Biominéralogie : histoire, mécanismes et applications [IMPMC] [IMPMC_BIOMIN] | |
| hal.structure.identifier | Institut universitaire de France [IUF] | |
| dc.contributor.author | GUYOT, François | |
| dc.date.accessioned | 2024-01-24T15:11:50Z | |
| dc.date.available | 2024-01-24T15:11:50Z | |
| dc.date.issued | 2023-05-25 | |
| dc.identifier.issn | 1664-302X | en_US |
| dc.identifier.uri | https://oskar-bordeaux.fr/handle/20.500.12278/187498 | |
| dc.description.abstractEn | Thermococcales, a major order of hyperthermophilic archaea inhabiting iron- and sulfur-rich anaerobic parts of hydrothermal deep-sea vents, are known to induce the formation of iron phosphates, greigite (Fe 3 S 4 ) and abundant quantities of pyrite (FeS 2 ), including pyrite spherules. In the present study, we report the characterization of the sulfide and phosphate minerals produced in the presence of Thermococcales using X-ray diffraction, synchrotron-based X ray absorption spectroscopy and scanning and transmission electron microscopies. Mixed valence Fe(II)-Fe(III) phosphates are interpreted as resulting from the activity of Thermococcales controlling phosphorus–iron–sulfur dynamics. The pyrite spherules (absent in abiotic control) consist of an assemblage of ultra-small nanocrystals of a few ten nanometers in size, showing coherently diffracting domain sizes of few nanometers. The production of these spherules occurs via a sulfur redox swing from S 0 to S –2 and then to S –1 , involving a comproportionation of (-II) and (0) oxidation states of sulfur, as supported by S-XANES data. Importantly, these pyrite spherules sequester biogenic organic compounds in small but detectable quantities, possibly making them good biosignatures to be searched for in extreme environments. | |
| dc.description.sponsorship | Les HYPERthermophiles et leur mécanisme de BIOMINeralisation - ANR-20-CE02-0001 | en_US |
| dc.language.iso | EN | en_US |
| dc.subject.en | archaea biosignatures hydrothermal vents pyrite greigite | |
| dc.subject.en | archaea | |
| dc.subject.en | biosignatures | |
| dc.subject.en | hydrothermal vents | |
| dc.subject.en | pyrite | |
| dc.subject.en | greigite | |
| dc.title.en | Production of carbon-containing pyrite spherules induced by hyperthermophilic Thermococcales: a biosignature? | |
| dc.type | Article de revue | en_US |
| dc.identifier.doi | 10.3389/fmicb.2023.1145781 | en_US |
| dc.subject.hal | Planète et Univers [physics]/Sciences de la Terre/Minéralogie | en_US |
| dc.subject.hal | Chimie/Cristallographie | en_US |
| dc.subject.hal | Sciences du Vivant [q-bio]/Microbiologie et Parasitologie | en_US |
| bordeaux.journal | Frontiers in Microbiology | en_US |
| bordeaux.volume | 14 | en_US |
| bordeaux.hal.laboratories | EPOC : Environnements et Paléoenvironnements Océaniques et Continentaux - UMR 5805 | en_US |
| bordeaux.institution | Université de Bordeaux | en_US |
| bordeaux.institution | CNRS | en_US |
| bordeaux.peerReviewed | oui | en_US |
| bordeaux.inpress | non | en_US |
| bordeaux.import.source | hal | |
| hal.identifier | hal-04202920 | |
| hal.version | 1 | |
| hal.popular | non | en_US |
| hal.audience | Internationale | en_US |
| hal.export | false | |
| workflow.import.source | hal | |
| dc.rights.cc | Pas de Licence CC | en_US |
| bordeaux.COinS | ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Frontiers%20in%20Microbiology&rft.date=2023-05-25&rft.volume=14&rft.eissn=1664-302X&rft.issn=1664-302X&rft.au=TRUONG,%20Chlo%C3%A9&BERNARD,%20Sylvain&MORIN,%20Guillaume&LE%20PAPE,%20Pierre&BAYA,%20Camille&rft.genre=article |
