elib
DLR-Header
DLR-Logo -> http://www.dlr.de
DLR Portal Home | Imprint | Privacy Policy | Contact | Deutsch
Fontsize: [-] Text [+]

Transitory microbial habitat in the hyperarid Atacama Desert

Schulze-Makuch, D. and Wagner, D. and Kounaves, S. and Mangelsdorf, K. and Devine, K.G. and de Vera, Jean Pierre Paul and Schmitt-Kopplin, P. and Grossart, H.-P. and Parro, V. and Kaupenjohann, M. and Galy, A. and Schneider, B. and Airo, A. and Frösler, J. and Davila, A.F. and Arens, F.L. and Cáceres, L. and Cornejo, F.S. and Carrizo, D. and Dartnell, L. and DiRuggiero, J. and Flury, M. and Ganzert, L. and Gessner, M.O. and Grathwohl, P. and Guan, L. and Heinz, J. and Hess, M. and Keppler, F. and Maus, D. and McKay, C. P. and Meckenstock, R.U. and Montgomery, W. and Oberlin, E.A. and Probst, A.J. and Sáenz, J.S. and Sattler, T. and Schirmack, J. and Sephton, M.A. and Schloter, M. and Uhl, J. and Valenzuela, B. and Vestergaard, G. and Wörmer, L. and Zamorano, P. (2018) Transitory microbial habitat in the hyperarid Atacama Desert. Proceedings of the National Academy of Science (PNAS), pp. 1-6. National Academy of Sciences. DOI: 10.1073/pnas.1714341115 ISSN 0027-8424

[img] PDF
2MB

Official URL: http://www.pnas.org/content/early/2018/02/20/1714341115

Abstract

Traces of life are nearly ubiquitous on Earth. However, a central unresolved question is whether these traces always indicate an active microbial community or whether, in extreme environments, such as hyperarid deserts, they instead reflect just dormant or dead cells. Although microbial biomass and diversity decrease with increasing aridity in the Atacama Desert, we provide multiple lines of evidence for the presence of an at times metabolically active, microbial community in one of the driest places on Earth. We base this observation on four major lines of evidence: (i) a physico-chemical characterization of the soil habitability after an exceptional rain event, (ii) identified biomolecules indicative of potentially active cells (e.g., presence of ATP, phospholipid fatty acids (PLFAs), metabolites, and enzymatic activity), (iii) measurements of in situ replication rates of genomes of uncultivated bacteria reconstructed from selected samples, and (iv) microbial community patterns specific to soil parameters and depths. We infer that the microbial populations have undergone selection and adaptation in response to their specific soil microenvironment and in particular to the degree of aridity. Collectively, our results Highlight that even the hyperarid Atacama Desert can provide a habitable environment for microorganisms that allows them to become metabolically active following an episodic increase in moisture and that once it decreases, so does the activity of the microbiota. These results have implications for the prospect of life on other planets such as Mars, which has transitioned from an earlier wetter environment to todays extreme hyperaridity.

Item URL in elib:https://elib.dlr.de/119141/
Document Type:Article
Title:Transitory microbial habitat in the hyperarid Atacama Desert
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Schulze-Makuch, D.TU Berlin, GermanyUNSPECIFIED
Wagner, D.Geoforschungszentrum, PotsdamUNSPECIFIED
Kounaves, S.Department of Chemistry, Tufts University, Medford, MA 02153; USAUNSPECIFIED
Mangelsdorf, K.Section Organic Geochemistry, GFZUNSPECIFIED
Devine, K.G.School of Human Sciences, London Metropolitan University, London N7 8BD, United KingdomUNSPECIFIED
de Vera, Jean Pierre Pauljean-pierre.devera (at) dlr.deUNSPECIFIED
Schmitt-Kopplin, P.Analytical BioGeoChemistry, Helmholtz Zentrum München, GermanyUNSPECIFIED
Grossart, H.-P.Institute of Biochemistry & Biology, University of Potsdam, 14476 PotsdamUNSPECIFIED
Parro, V.Centro de Astrobiología, INTA-CSIC, Madrid, SpainUNSPECIFIED
Kaupenjohann, M.Fachgebiet Bodenkunde, Technical University Berlin, 10623 Berlin, GermanyUNSPECIFIED
Galy, A.Centre de Recherches Pétrographiques et Géochimiques, CNRS, Université de Lorraine, FranceUNSPECIFIED
Schneider, B.Section Geomicrobiology, GFZ German Research Centre for Geosciences, 14473 Potsdam, GermanyUNSPECIFIED
Airo, A.Center of Astronomy & Astrophysics, Technical University Berlin, 10623 Berlin, GermanyUNSPECIFIED
Frösler, J.Biofilm Centre, University of Duisburg Essen, Germany.UNSPECIFIED
Davila, A.F.NASA Ames Research Center, Mountain View, CA 94043, USAUNSPECIFIED
Arens, F.L.Institute for Geological Sciences, Freie University Berlin, 12249 Berlin, GermanyUNSPECIFIED
Cáceres, L.Laboratorio de Microorganismos Extremófilos, University of Antofagasta, Antofagasta 02800, ChileUNSPECIFIED
Cornejo, F.S.Laboratorio de Microorganismos Extremófilos, University of Antofagasta, Antofagasta 02800, ChileUNSPECIFIED
Carrizo, D.Centro de Astrobiología, INTA-CSIC, Madrid, SpainUNSPECIFIED
Dartnell, L.Department of Life Sciences, University of Westminster, London UKUNSPECIFIED
DiRuggiero, J.Department of Biology, The John Hopkins University, Baltimore, MD 21218, USAUNSPECIFIED
Flury, M.Department of Crop & Soil Sciences, Washington State University, Pullman, WA 99164, USAUNSPECIFIED
Ganzert, L.Department of Experimental Limnology, Leibniz Institute of Freshwater Ecology and Inland Fisheries, 16775 Stechlin, GermanyUNSPECIFIED
Gessner, M.O.Department of Ecology, Technical University Berlin, 10587 Berlin, GermanyUNSPECIFIED
Grathwohl, P.Center for Applied Geosciences, University of Tübingen, 72074 Tübingen, GermanyUNSPECIFIED
Guan, L.Comparative Microbiome Analysis, Helmholtz Zentrum München, 85764 Oberschleissheim, GermanyUNSPECIFIED
Heinz, J.Center of Astronomy & Astrophysics, Technical University Berlin, 10623 Berlin, GermanyUNSPECIFIED
Hess, M.Systems Microbiology & Natural Products Laboratory, University of California, Davis, CA 95616, USAUNSPECIFIED
Keppler, F.Institute of Earth Sciences, Heidelberg University, 69120 Heidelberg, GermanyUNSPECIFIED
Maus, D.Center of Astronomy & Astrophysics, Technical University Berlin, 10623 Berlin, GermanyUNSPECIFIED
McKay, C. P.NASA, Moffett Field, USAUNSPECIFIED
Meckenstock, R.U.Biofilm Centre, University of Duisburg-Essen, 45141 Essen, GermanyUNSPECIFIED
Montgomery, W.Department of Earth Science & Engineering, Imperial College London, London SW72AZ, United KingdomUNSPECIFIED
Oberlin, E.A.Department of Chemistry, Tufts University, Medford, MA 02153, USAUNSPECIFIED
Probst, A.J.Biofilm Centre, University of Duisburg-Essen, 45141 Essen, GermanyUNSPECIFIED
Sáenz, J.S.Comparative Microbiome Analysis, Helmholtz Zentrum München, 85764 Oberschleissheim, GermanyUNSPECIFIED
Sattler, T.Institute of Earth Sciences, Heidelberg University, 69120 Heidelberg, GermanyUNSPECIFIED
Schirmack, J.Center of Astronomy & Astrophysics, Technical University Berlin, 10623 Berlin, GermanyUNSPECIFIED
Sephton, M.A.Department of Earth Science and Engineering, Imperial College, London SW7 2AZ, UKUNSPECIFIED
Schloter, M.Soil Science, Technical University München, 85354 Freising-Weihenstephan, GermanyUNSPECIFIED
Uhl, J.Analytical BioGeoChemistry, Helmholtz Zentrum München, 85764 Oberschleissheim, GermanyUNSPECIFIED
Valenzuela, B.Laboratorio de Microorganismos Extremófilos, University of Antofagasta, Antofagasta 02800, ChileUNSPECIFIED
Vestergaard, G.Comparative Microbiome Analysis, Helmholtz Zentrum München, 85764 Oberschleissheim, GermanyUNSPECIFIED
Wörmer, L.Center for Marine Environmental Sciences (MARUM), University of Bremen, 28359 Bremen, GermanyUNSPECIFIED
Zamorano, P.Laboratorio de Microorganismos Extremófilos, University of Antofagasta, Antofagasta 02800, ChileUNSPECIFIED
Date:26 February 2018
Journal or Publication Title:Proceedings of the National Academy of Science (PNAS)
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:Yes
DOI :10.1073/pnas.1714341115
Page Range:pp. 1-6
Publisher:National Academy of Sciences
ISSN:0027-8424
Status:Published
Keywords:Habitat; aridity; microbial activity; biomarker; Mars
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Space Science and Exploration
DLR - Research area:Raumfahrt
DLR - Program:R EW - Erforschung des Weltraums
DLR - Research theme (Project):R - Vorhaben Planetary Evolution and Life
Location: Berlin-Adlershof
Institutes and Institutions:Institute of Planetary Research > Leitungsbereich PF
Deposited By: de Vera, Dr. Jean Pierre Paul
Deposited On:19 Mar 2018 11:16
Last Modified:31 Jul 2019 20:16

Repository Staff Only: item control page

Browse
Search
Help & Contact
Information
electronic library is running on EPrints 3.3.12
Copyright © 2008-2017 German Aerospace Center (DLR). All rights reserved.