Sort by
Items per page

Send to

Choose Destination

Search results

Items: 1 to 50 of 70


Paleo-Rock-Hosted Life on Earth and the Search on Mars: A Review and Strategy for Exploration.

Onstott TC, Ehlmann BL, Sapers H, Coleman M, Ivarsson M, Marlow JJ, Neubeck A, Niles P.

Astrobiology. 2019 Jun 25. doi: 10.1089/ast.2018.1960. [Epub ahead of print]


Predominance of Anaerobic, Spore-Forming Bacteria in Metabolically Active Microbial Communities from Ancient Siberian Permafrost.

Liang R, Lau M, Vishnivetskaya T, Lloyd KG, Wang W, Wiggins J, Miller J, Pfiffner S, Rivkina EM, Onstott TC.

Appl Environ Microbiol. 2019 Jul 18;85(15). pii: e00560-19. doi: 10.1128/AEM.00560-19. Print 2019 Aug 1.


Denitrifiers, nitrogen-fixing bacteria and N2O soil gas flux in high Arctic ice-wedge polygon cryosols.

Altshuler I, Ronholm J, Layton A, Onstott TC, W Greer C, Whyte LG.

FEMS Microbiol Ecol. 2019 May 1;95(5). pii: fiz049. doi: 10.1093/femsec/fiz049.


New ecosystems in the deep subsurface follow the flow of water driven by geological activity.

Borgonie G, Magnabosco C, García-Moyano A, Linage-Alvarez B, Ojo AO, Freese LB, Van Jaarsveld C, Van Rooyen C, Kuloyo O, Cason ED, Vermeulen J, Pienaar C, Van Heerden E, Sherwood Lollar B, Onstott TC, Mundle SOC.

Sci Rep. 2019 Mar 1;9(1):3310. doi: 10.1038/s41598-019-39699-w.


Draft Genome Sequence of "Candidatus Bathyarchaeota" Archaeon BE326-BA-RLH, an Uncultured Denitrifier and Putative Anaerobic Methanotroph from South Africa's Deep Continental Biosphere.

Harris RL, Lau MCY, Cadar A, Bartlett DH, Cason E, van Heerden E, Onstott TC.

Microbiol Resour Announc. 2018 Nov 21;7(20). pii: e01295-18. doi: 10.1128/MRA.01295-18. eCollection 2018 Nov.


Valuing Life-Detection Missions.

Kite ES, Gaidos E, Onstott TC.

Astrobiology. 2018 Jul;18(7):834-840. doi: 10.1089/ast.2017.1813. No abstract available.


Viable Nematodes from Late Pleistocene Permafrost of the Kolyma River Lowland.

Shatilovich AV, Tchesunov AV, Neretina TV, Grabarnik IP, Gubin SV, Vishnivetskaya TA, Onstott TC, Rivkina EM.

Dokl Biol Sci. 2018 May;480(1):100-102. doi: 10.1134/S0012496618030079. Epub 2018 Jul 16.


Taxonomic and Functional Compositions Impacted by the Quality of Metatranscriptomic Assemblies.

Lau MCY, Harris RL, Oh Y, Yi MJ, Behmard A, Onstott TC.

Front Microbiol. 2018 Jun 20;9:1235. doi: 10.3389/fmicb.2018.01235. eCollection 2018.


Fluctuations in populations of subsurface methane oxidizers in coordination with changes in electron acceptor availability.

Magnabosco C, Timmers PHA, Lau MCY, Borgonie G, Linage-Alvarez B, Kuloyo O, Alleva R, Kieft TL, Slater GF, van Heerden E, Sherwood Lollar B, Onstott TC.

FEMS Microbiol Ecol. 2018 Jul 1;94(7). doi: 10.1093/femsec/fiy089.


Erratum for Edwards et al., "Draft Genome Sequence of Uncultured Upland Soil Cluster Gammaproteobacteria Gives Molecular Insights into High-Affinity Methanotrophy".

Edwards CR, Onstott TC, Miller JM, Wiggins JB, Wang W, Lee CK, Cary SC, Pointing SB, Lau MCY.

Genome Announc. 2017 Sep 7;5(36). pii: e00962-17. doi: 10.1128/genomeA.00962-17. No abstract available.


Draft Genome Sequence of Uncultured Upland Soil Cluster Gammaproteobacteria Gives Molecular Insights into High-Affinity Methanotrophy.

Edwards CR, Onstott TC, Miller JM, Wiggins JB, Wang W, Lee CK, Cary SC, Pointing SB, Lau MCY.

Genome Announc. 2017 Apr 27;5(17). pii: e00047-17. doi: 10.1128/genomeA.00047-17. Erratum in: Genome Announc. 2017 Sep 7;5(36):.


An oligotrophic deep-subsurface community dependent on syntrophy is dominated by sulfur-driven autotrophic denitrifiers.

Lau MC, Kieft TL, Kuloyo O, Linage-Alvarez B, van Heerden E, Lindsay MR, Magnabosco C, Wang W, Wiggins JB, Guo L, Perlman DH, Kyin S, Shwe HH, Harris RL, Oh Y, Yi MJ, Purtschert R, Slater GF, Ono S, Wei S, Li L, Sherwood Lollar B, Onstott TC.

Proc Natl Acad Sci U S A. 2016 Dec 6;113(49):E7927-E7936. Epub 2016 Nov 21.


Hydrogen Isotopic Composition of Arctic and Atmospheric CH4 Determined by a Portable Near-Infrared Cavity Ring-Down Spectrometer with a Cryogenic Pre-Concentrator.

Chen Y, Lehmann KK, Peng Y, Pratt LM, White JR, Cadieux SB, Sherwood Lollar B, Lacrampe-Couloume G, Onstott TC.

Astrobiology. 2016 Oct;16(10):787-797. Epub 2016 Sep 22.


Atmospheric CH4 oxidation by Arctic permafrost and mineral cryosols as a function of water saturation and temperature.

Stackhouse B, Lau MC, Vishnivetskaya T, Burton N, Wang R, Southworth A, Whyte L, Onstott TC.

Geobiology. 2017 Jan;15(1):94-111. doi: 10.1111/gbi.12193. Epub 2016 Jul 29.


Eukaryotic opportunists dominate the deep-subsurface biosphere in South Africa.

Borgonie G, Linage-Alvarez B, Ojo AO, Mundle SO, Freese LB, Van Rooyen C, Kuloyo O, Albertyn J, Pohl C, Cason ED, Vermeulen J, Pienaar C, Litthauer D, Van Niekerk H, Van Eeden J, Sherwood Lollar B, Onstott TC, Van Heerden E.

Nat Commun. 2015 Nov 24;6:8952. doi: 10.1038/ncomms9952.


Deep subsurface mine stalactites trap endemic fissure fluid Archaea, Bacteria, and Nematoda possibly originating from ancient seas.

Borgonie G, Linage-Alvarez B, Ojo A, Shivambu S, Kuloyo O, Cason ED, Maphanga S, Vermeulen JG, Litthauer D, Ralston CD, Onstott TC, Sherwood-Lollar B, Van Heerden E.

Front Microbiol. 2015 Aug 11;6:833. doi: 10.3389/fmicb.2015.00833. eCollection 2015.


A metagenomic window into carbon metabolism at 3 km depth in Precambrian continental crust.

Magnabosco C, Ryan K, Lau MC, Kuloyo O, Sherwood Lollar B, Kieft TL, van Heerden E, Onstott TC.

ISME J. 2016 Mar;10(3):730-41. doi: 10.1038/ismej.2015.150. Epub 2015 Sep 1.


An active atmospheric methane sink in high Arctic mineral cryosols.

Lau MC, Stackhouse BT, Layton AC, Chauhan A, Vishnivetskaya TA, Chourey K, Ronholm J, Mykytczuk NC, Bennett PC, Lamarche-Gagnon G, Burton N, Pollard WH, Omelon CR, Medvigy DM, Hettich RL, Pfiffner SM, Whyte LG, Onstott TC.

ISME J. 2015 Aug;9(8):1904. doi: 10.1038/ismej.2015.112. No abstract available.


Single cell genomics indicates horizontal gene transfer and viral infections in a deep subsurface Firmicutes population.

Labonté JM, Field EK, Lau M, Chivian D, Van Heerden E, Wommack KE, Kieft TL, Onstott TC, Stepanauskas R.

Front Microbiol. 2015 Apr 22;6:349. doi: 10.3389/fmicb.2015.00349. eCollection 2015.


An active atmospheric methane sink in high Arctic mineral cryosols.

Lau MC, Stackhouse BT, Layton AC, Chauhan A, Vishnivetskaya TA, Chourey K, Ronholm J, Mykytczuk NC, Bennett PC, Lamarche-Gagnon G, Burton N, Pollard WH, Omelon CR, Medvigy DM, Hettich RL, Pfiffner SM, Whyte LG, Onstott TC.

ISME J. 2015 Aug;9(8):1880-91. doi: 10.1038/ismej.2015.13. Epub 2015 Apr 14. Erratum in: ISME J. 2015 Aug;9(8):1904.


Comparisons of the composition and biogeographic distribution of the bacterial communities occupying South African thermal springs with those inhabiting deep subsurface fracture water.

Magnabosco C, Tekere M, Lau MC, Linage B, Kuloyo O, Erasmus M, Cason E, van Heerden E, Borgonie G, Kieft TL, Olivier J, Onstott TC.

Front Microbiol. 2014 Dec 17;5:679. doi: 10.3389/fmicb.2014.00679. eCollection 2014.


The contribution of the Precambrian continental lithosphere to global H2 production.

Lollar BS, Onstott TC, Lacrampe-Couloume G, Ballentine CJ.

Nature. 2014 Dec 18;516(7531):379-82. doi: 10.1038/nature14017.


Direct measurements of methane emissions from abandoned oil and gas wells in Pennsylvania.

Kang M, Kanno CM, Reid MC, Zhang X, Mauzerall DL, Celia MA, Chen Y, Onstott TC.

Proc Natl Acad Sci U S A. 2014 Dec 23;111(51):18173-7. doi: 10.1073/pnas.1408315111. Epub 2014 Dec 8.


Metagenomes from thawing low-soil-organic-carbon mineral cryosols and permafrost of the canadian high arctic.

Chauhan A, Layton AC, Vishnivetskaya TA, Williams D, Pfiffner SM, Rekepalli B, Stackhouse B, Lau MC, Phelps TJ, Mykytczuk N, Ronholm J, Whyte L, Onstott TC, Sayler GS.

Genome Announc. 2014 Nov 20;2(6). pii: e01217-14. doi: 10.1128/genomeA.01217-14.


Phylogeny and phylogeography of functional genes shared among seven terrestrial subsurface metagenomes reveal N-cycling and microbial evolutionary relationships.

Lau MC, Cameron C, Magnabosco C, Brown CT, Schilkey F, Grim S, Hendrickson S, Pullin M, Sherwood Lollar B, van Heerden E, Kieft TL, Onstott TC.

Front Microbiol. 2014 Oct 31;5:531. doi: 10.3389/fmicb.2014.00531. eCollection 2014.


Trends and future challenges in sampling the deep terrestrial biosphere.

Wilkins MJ, Daly RA, Mouser PJ, Trexler R, Sharma S, Cole DR, Wrighton KC, Biddle JF, Denis EH, Fredrickson JK, Kieft TL, Onstott TC, Peterson L, Pfiffner SM, Phelps TJ, Schrenk MO.

Front Microbiol. 2014 Sep 12;5:481. doi: 10.3389/fmicb.2014.00481. eCollection 2014.


Methanogen community composition and rates of methane consumption in Canadian High Arctic permafrost soils.

Allan J, Ronholm J, Mykytczuk NC, Greer CW, Onstott TC, Whyte LG.

Environ Microbiol Rep. 2014 Apr;6(2):136-44. doi: 10.1111/1758-2229.12139. Epub 2014 Jan 23.


Does aspartic acid racemization constrain the depth limit of the subsurface biosphere?

Onstott TC, Magnabosco C, Aubrey AD, Burton AS, Dworkin JP, Elsila JE, Grunsfeld S, Cao BH, Hein JE, Glavin DP, Kieft TL, Silver BJ, Phelps TJ, van Heerden E, Opperman DJ, Bada JL.

Geobiology. 2014 Jan;12(1):1-19. doi: 10.1111/gbi.12069. Epub 2013 Dec 2.


Measurement of the 13C/12C of atmospheric CH4 using near-infrared (NIR) cavity ring-down spectroscopy.

Chen Y, Lehmann KK, Kessler J, Sherwood Lollar B, Lacrampe Couloume G, Onstott TC.

Anal Chem. 2013 Dec 3;85(23):11250-7. doi: 10.1021/ac401605s. Epub 2013 Nov 19.


Commercial DNA extraction kits impact observed microbial community composition in permafrost samples.

Vishnivetskaya TA, Layton AC, Lau MC, Chauhan A, Cheng KR, Meyers AJ, Murphy JR, Rogers AW, Saarunya GS, Williams DE, Pfiffner SM, Biggerstaff JP, Stackhouse BT, Phelps TJ, Whyte L, Sayler GS, Onstott TC.

FEMS Microbiol Ecol. 2014 Jan;87(1):217-30. doi: 10.1111/1574-6941.12219. Epub 2013 Oct 17.


Mobile hydrocarbon microspheres from >2-billion-year-old carbon-bearing seams in the South African deep subsurface.

Wanger G, Moser D, Hay M, Myneni S, Onstott TC, Southam G.

Geobiology. 2012 Nov;10(6):496-505. doi: 10.1111/j.1472-4669.2012.00340.x. Epub 2012 Aug 20.


A carbon free filter for collection of large volume samples of cellular biomass from oligotrophic waters.

Mailloux BJ, Dochenetz A, Bishop M, Dong H, Ziolkowski LA, Wommack KE, Sakowski EG, Onstott TC, Slater GF.

J Microbiol Methods. 2012 Sep;90(3):145-51. doi: 10.1016/j.mimet.2012.04.016. Epub 2012 May 3.


Microbes in thawing permafrost: the unknown variable in the climate change equation.

Graham DE, Wallenstein MD, Vishnivetskaya TA, Waldrop MP, Phelps TJ, Pfiffner SM, Onstott TC, Whyte LG, Rivkina EM, Gilichinsky DA, Elias DA, Mackelprang R, VerBerkmoes NC, Hettich RL, Wagner D, Wullschleger SD, Jansson JK.

ISME J. 2012 Apr;6(4):709-12. doi: 10.1038/ismej.2011.163. Epub 2011 Nov 17. No abstract available.


Lessons learned from bacterial transport research at the South Oyster Site.

Scheibe TD, Hubbard SS, Onstott TC, Deflaun MF.

Ground Water. 2011 Sep-Oct;49(5):745-63. doi: 10.1111/j.1745-6584.2011.00831.x. Epub 2011 Jun 15. Review.


Nematoda from the terrestrial deep subsurface of South Africa.

Borgonie G, García-Moyano A, Litthauer D, Bert W, Bester A, van Heerden E, Möller C, Erasmus M, Onstott TC.

Nature. 2011 Jun 2;474(7349):79-82. doi: 10.1038/nature09974.


Hydrogeology, chemical and microbial activity measurement through deep permafrost.

Stotler RL, Frape SK, Freifeld BM, Holden B, Onstott TC, Ruskeeniemi T, Chan E.

Ground Water. 2011 May-Jun;49(3):348-64. doi: 10.1111/j.1745-6584.2010.00724.x.


Coupling hydrocarbon degradation to anaerobic respiration and mineral diagenesis: theoretical constraints.

Onstott TC, Hinton SM, Silver BJ, King HE Jr.

Geobiology. 2010 Jan;8(1):69-88. doi: 10.1111/j.1472-4669.2009.00224.x.


Microbial communities in subpermafrost saline fracture water at the Lupin Au mine, Nunavut, Canada.

Onstott TC, McGown DJ, Bakermans C, Ruskeeniemi T, Ahonen L, Telling J, Soffientino B, Pfiffner SM, Sherwood-Lollar B, Frape S, Stotler R, Johnson EJ, Vishnivetskaya TA, Rothmel R, Pratt LM.

Microb Ecol. 2009 Nov;58(4):786-807. doi: 10.1007/s00248-009-9553-5. Epub 2009 Jul 1.


Sulfur isotope enrichment during maintenance metabolism in the thermophilic sulfate-reducing bacterium Desulfotomaculum putei.

Davidson MM, Bisher ME, Pratt LM, Fong J, Southam G, Pfiffner SM, Reches Z, Onstott TC.

Appl Environ Microbiol. 2009 Sep;75(17):5621-30. doi: 10.1128/AEM.02948-08. Epub 2009 Jun 26.


Survivability of Psychrobacter cryohalolentis K5 under simulated martian surface conditions.

Smith DJ, Schuerger AC, Davidson MM, Pacala SW, Bakermans C, Onstott TC.

Astrobiology. 2009 Mar;9(2):221-8. doi: 10.1089/ast.2007.0231.


A high-resolution chemical and structural study of framboidal pyrite formed within a low-temperature bacterial biofilm.

MacLean LC, Tyliszczak T, Gilbert PU, Zhou D, Pray TJ, Onstott TC, Southam G.

Geobiology. 2008 Dec;6(5):471-80. doi: 10.1111/j.1472-4669.2008.00174.x.


Environmental genomics reveals a single-species ecosystem deep within Earth.

Chivian D, Brodie EL, Alm EJ, Culley DE, Dehal PS, DeSantis TZ, Gihring TM, Lapidus A, Lin LH, Lowry SR, Moser DP, Richardson PM, Southam G, Wanger G, Pratt LM, Andersen GL, Hazen TC, Brockman FJ, Arkin AP, Onstott TC.

Science. 2008 Oct 10;322(5899):275-8. doi: 10.1126/science.1155495.


Challenges for coring deep permafrost on Earth and Mars.

Pfiffner SM, Onstott TC, Ruskeeniemi T, Talikka M, Bakermans C, McGown D, Chan E, Johnson A, Phelps TJ, Le Puil M, Difurio SA, Pratt LM, Stotler R, Frape S, Telling J, Lollar BS, Neill I, Zerbin B.

Astrobiology. 2008 Jun;8(3):623-38. doi: 10.1089/ast.2007.0159.


Stars of the terrestrial deep subsurface: a novel 'star-shaped' bacterial morphotype from a South African platinum mine.

Wanger G, Onstott TC, Southam G.

Geobiology. 2008 Jun;6(3):325-30. doi: 10.1111/j.1472-4669.2008.00163.x. Erratum in: Geobiology. 2008 Aug;6(4):421.


Hydrogeologic controls on episodic H2 release from precambrian fractured rocks--energy for deep subsurface life on earth and mars.

Sherwood Lollar B, Voglesonger K, Lin LH, Lacrampe-Couloume G, Telling J, Abrajano TA, Onstott TC, Pratt LM.

Astrobiology. 2007 Dec;7(6):971-86. doi: 10.1089/ast.2006.0096.


Long-term sustainability of a high-energy, low-diversity crustal biome.

Lin LH, Wang PL, Rumble D, Lippmann-Pipke J, Boice E, Pratt LM, Sherwood Lollar B, Brodie EL, Hazen TC, Andersen GL, DeSantis TZ, Moser DP, Kershaw D, Onstott TC.

Science. 2006 Oct 20;314(5798):479-82.


Isolation and characterization of a Geobacillus thermoleovorans strain from an ultra-deep South African gold mine.

Deflaun MF, Fredrickson JK, Dong H, Pfiffner SM, Onstott TC, Balkwill DL, Streger SH, Stackebrandt E, Knoessen S, van Heerden E.

Syst Appl Microbiol. 2007 Mar;30(2):152-64. Epub 2006 May 18.


Martian CH(4): sources, flux, and detection.

Onstott TC, McGown D, Kessler J, Lollar BS, Lehmann KK, Clifford SM.

Astrobiology. 2006 Apr;6(2):377-95.


Desulfotomaculum and Methanobacterium spp. dominate a 4- to 5-kilometer-deep fault.

Moser DP, Gihring TM, Brockman FJ, Fredrickson JK, Balkwill DL, Dollhopf ME, Lollar BS, Pratt LM, Boice E, Southam G, Wanger G, Baker BJ, Pfiffner SM, Lin LH, Onstott TC.

Appl Environ Microbiol. 2005 Dec;71(12):8773-83.


Physical versus chemical effects on bacterial and bromide transport as determined from on site sediment column pulse experiments.

Hall JA, Mailloux BJ, Onstott TC, Scheibe TD, Fuller ME, Dong H, DeFlaun MF.

J Contam Hydrol. 2005 Feb;76(3-4):295-314. Epub 2005 Jan 11.


Supplemental Content

Loading ...
Support Center