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Puente-Sánchez F, Arce-Rodríguez A, Oggerin M, García-Villadangos M, Moreno-Paz M, Blanco Y, Rodríguez N, Bird L, Lincoln SA, Tornos F, Prieto-Ballesteros O, Freeman KH, Pieper DH, Timmis KN, Amils R, Parro V. Viable cyanobacteria in the deep continental subsurface. Proc Natl Acad Sci U S A 2018; 115:10702-10707. [PMID: 30275328 PMCID: PMC6196553 DOI: 10.1073/pnas.1808176115] [Citation(s) in RCA: 87] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Cyanobacteria are ecologically versatile microorganisms inhabiting most environments, ranging from marine systems to arid deserts. Although they possess several pathways for light-independent energy generation, until now their ecological range appeared to be restricted to environments with at least occasional exposure to sunlight. Here we present molecular, microscopic, and metagenomic evidence that cyanobacteria predominate in deep subsurface rock samples from the Iberian Pyrite Belt Mars analog (southwestern Spain). Metagenomics showed the potential for a hydrogen-based lithoautotrophic cyanobacterial metabolism. Collectively, our results suggest that they may play an important role as primary producers within the deep-Earth biosphere. Our description of this previously unknown ecological niche for cyanobacteria paves the way for models on their origin and evolution, as well as on their potential presence in current or primitive biospheres in other planetary bodies, and on the extant, primitive, and putative extraterrestrial biospheres.
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Affiliation(s)
- Fernando Puente-Sánchez
- Department of Molecular Evolution, Centro de Astrobiología, Instituto Nacional de Técnica Aeroespacial-Consejo Superior de Investigaciones Científicas (INTA-CSIC), 28850 Torrejón de Ardoz, Madrid, Spain;
| | - Alejandro Arce-Rodríguez
- Institute of Microbiology, Technical University Braunschweig, D-38023 Braunschweig, Germany
- Microbial Interactions and Processes Group, Helmholtz Zentrum für Infektionsforschung, 38124 Braunschweig, Germany
| | - Monike Oggerin
- Department of Planetology and Habitability, Centro de Astrobiología, INTA-CSIC, 28850 Torrejón de Ardoz, Madrid, Spain
| | - Miriam García-Villadangos
- Department of Molecular Evolution, Centro de Astrobiología, Instituto Nacional de Técnica Aeroespacial-Consejo Superior de Investigaciones Científicas (INTA-CSIC), 28850 Torrejón de Ardoz, Madrid, Spain
| | - Mercedes Moreno-Paz
- Department of Molecular Evolution, Centro de Astrobiología, Instituto Nacional de Técnica Aeroespacial-Consejo Superior de Investigaciones Científicas (INTA-CSIC), 28850 Torrejón de Ardoz, Madrid, Spain
| | - Yolanda Blanco
- Department of Molecular Evolution, Centro de Astrobiología, Instituto Nacional de Técnica Aeroespacial-Consejo Superior de Investigaciones Científicas (INTA-CSIC), 28850 Torrejón de Ardoz, Madrid, Spain
| | - Nuria Rodríguez
- Department of Planetology and Habitability, Centro de Astrobiología, INTA-CSIC, 28850 Torrejón de Ardoz, Madrid, Spain
| | - Laurence Bird
- Department of Geosciences, The Pennsylvania State University, University Park, PA 16802
| | - Sara A Lincoln
- Department of Geosciences, The Pennsylvania State University, University Park, PA 16802
| | - Fernando Tornos
- Instituto de Geociencias, CSIC-Universidad Complutense de Madrid, 28040 Madrid, Spain
| | - Olga Prieto-Ballesteros
- Department of Planetology and Habitability, Centro de Astrobiología, INTA-CSIC, 28850 Torrejón de Ardoz, Madrid, Spain
| | - Katherine H Freeman
- Department of Geosciences, The Pennsylvania State University, University Park, PA 16802
| | - Dietmar H Pieper
- Microbial Interactions and Processes Group, Helmholtz Zentrum für Infektionsforschung, 38124 Braunschweig, Germany
| | - Kenneth N Timmis
- Institute of Microbiology, Technical University Braunschweig, D-38023 Braunschweig, Germany
| | - Ricardo Amils
- Department of Planetology and Habitability, Centro de Astrobiología, INTA-CSIC, 28850 Torrejón de Ardoz, Madrid, Spain
- Centro de Biología Molecular Severo Ochoa, CSIC-Universidad Autónoma de Madrid, 28049 Madrid, Spain
| | - Víctor Parro
- Department of Molecular Evolution, Centro de Astrobiología, Instituto Nacional de Técnica Aeroespacial-Consejo Superior de Investigaciones Científicas (INTA-CSIC), 28850 Torrejón de Ardoz, Madrid, Spain
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Kos P, Plenio H. A Fluorescent Molecular Probe for the Detection of Hydrogen Based on Oxidative Addition Reactions with Crabtree‐Type Hydrogenation Catalysts. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201506918] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Pavlo Kos
- Organometallic Chemistry, Technische Universität Darmstadt, Alarich‐Weiss‐Strasse 12, 64287 Darmstadt (Germany)
| | - Herbert Plenio
- Organometallic Chemistry, Technische Universität Darmstadt, Alarich‐Weiss‐Strasse 12, 64287 Darmstadt (Germany)
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Kos P, Plenio H. A Fluorescent Molecular Probe for the Detection of Hydrogen Based on Oxidative Addition Reactions with Crabtree-Type Hydrogenation Catalysts. Angew Chem Int Ed Engl 2015; 54:13293-6. [PMID: 26358887 DOI: 10.1002/anie.201506918] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2015] [Indexed: 01/10/2023]
Abstract
A Crabtree-type Ir(I) complex tagged with a fluorescent dye (bodipy) was synthesized. The oxidative addition of H2 converts the weakly fluorescent Ir(I) complex (Φ=0.038) into a highly fluorescent Ir(III) species (Φ=0.51). This fluorogenic reaction can be utilized for the detection of H2 and to probe the oxidative addition step in the catalytic hydrogenation of olefins.
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Affiliation(s)
- Pavlo Kos
- Organometallic Chemistry, Technische Universität Darmstadt, Alarich-Weiss-Strasse 12, 64287 Darmstadt (Germany)
| | - Herbert Plenio
- Organometallic Chemistry, Technische Universität Darmstadt, Alarich-Weiss-Strasse 12, 64287 Darmstadt (Germany).
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D'Adamo S, Jinkerson RE, Boyd ES, Brown SL, Baxter BK, Peters JW, Posewitz MC. Evolutionary and biotechnological implications of robust hydrogenase activity in halophilic strains of Tetraselmis. PLoS One 2014; 9:e85812. [PMID: 24465722 PMCID: PMC3897525 DOI: 10.1371/journal.pone.0085812] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2013] [Accepted: 12/02/2013] [Indexed: 11/19/2022] Open
Abstract
Although significant advances in H2 photoproduction have recently been realized in fresh water algae (e.g. Chlamydomonas reinhardtii), relatively few studies have focused on H2 production and hydrogenase adaptations in marine or halophilic algae. Salt water organisms likely offer several advantages for biotechnological H2 production due to the global abundance of salt water, decreased H2 and O2 solubility in saline and hypersaline systems, and the ability of extracellular NaCl levels to influence metabolism. We screened unialgal isolates obtained from hypersaline ecosystems in the southwest United States and identified two distinct halophilic strains of the genus Tetraselmis (GSL1 and QNM1) that exhibit both robust fermentative and photo H2-production activities. The influence of salinity (3.5%, 5.5% and 7.0% w/v NaCl) on H2 production was examined during anoxic acclimation, with the greatest in vivo H2-production rates observed at 7.0% NaCl. These Tetraselmis strains maintain robust hydrogenase activity even after 24 h of anoxic acclimation and show increased hydrogenase activity relative to C. reinhardtii after extended anoxia. Transcriptional analysis of Tetraselmis GSL1 enabled sequencing of the cDNA encoding the FeFe-hydrogenase structural enzyme (HYDA) and its maturation proteins (HYDE, HYDEF and HYDG). In contrast to freshwater Chlorophyceae, the halophilic Tetraselmis GSL1 strain likely encodes a single HYDA and two copies of HYDE, one of which is fused to HYDF. Phylogenetic analyses of HYDA and concatenated HYDA, HYDE, HYDF and HYDG in Tetraselmis GSL1 fill existing knowledge gaps in the evolution of algal hydrogenases and indicate that the algal hydrogenases sequenced to date are derived from a common ancestor. This is consistent with recent hypotheses that suggest fermentative metabolism in the majority of eukaryotes is derived from a common base set of enzymes that emerged early in eukaryotic evolution with subsequent losses in some organisms.
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Affiliation(s)
- Sarah D'Adamo
- Department of Chemistry and Geochemistry, Colorado School of Mines, Golden, Colorado, United States of America
| | - Robert E. Jinkerson
- Department of Chemistry and Geochemistry, Colorado School of Mines, Golden, Colorado, United States of America
| | - Eric S. Boyd
- Department of Microbiology and the Thermal Biology Institute, Montana State University, Bozeman, Montana, United States of America
| | - Susan L. Brown
- Center for Marine Microbial Ecology and Diversity, University of Hawaii, Honolulu, Hawaii, United States of America
| | - Bonnie K. Baxter
- Department of Biology and the Great Salt Lake Institute, Westminster College, Salt Lake City, Utah, United States of America
| | - John W. Peters
- Department of Microbiology and the Thermal Biology Institute, Montana State University, Bozeman, Montana, United States of America
- Department of Chemistry and Biochemistry, Montana State University, Bozeman, Montana, United States of America
| | - Matthew C. Posewitz
- Department of Chemistry and Geochemistry, Colorado School of Mines, Golden, Colorado, United States of America
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