Skip to main content
×
Home
    • Aa
    • Aa
  • Get access
    Check if you have access via personal or institutional login
  • Cited by 38
  • Cited by
    This article has been cited by the following publications. This list is generated based on data provided by CrossRef.

    Bulat, Sergey A. 2016. Microbiology of the subglacial Lake Vostok: first results of borehole-frozen lake water analysis and prospects for searching for lake inhabitants. Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, Vol. 374, Issue. 2059, p. 20140292.


    Karlov, Denis S. Marie, Dominique Sumbatyan, Danil A. Chuvochina, Maria S. Kulichevskaya, Irina S. Alekhina, Irina A. and Bulat, Sergey A. 2016. Microbial communities within the water column of freshwater Lake Radok, East Antarctica: predominant 16S rDNA phylotypes and bacterial cultures. Polar Biology,


    Laybourn-Parry, Johanna and Pearce, David 2016. Heterotrophic bacteria in Antarctic lacustrine and glacial environments. Polar Biology,


    Leitchenkov, German L. Antonov, Anton V. Luneov, Pavel I. and Lipenkov, Vladimir Ya. 2016. Geology and environments of subglacial Lake Vostok. Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, Vol. 374, Issue. 2059, p. 20140302.


    Lipenkov, Vladimir Ya. Ekaykin, Alexey A. Polyakova, Ekaterina V. and Raynaud, Dominique 2016. Characterization of subglacial Lake Vostok as seen from physical and isotope properties of accreted ice. Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, Vol. 374, Issue. 2059, p. 20140303.


    Karaevskaya, E. S. Demchenko, L. S. Demidov, N. E. Rivkina, E. M. Bulat, S. A. and Gilichinsky, D. A. 2014. Archaeal diversity in permafrost deposits of Bunger Hills Oasis and King George Island (Antarctica) according to the 16S rRNA gene sequencing. Microbiology, Vol. 83, Issue. 4, p. 398.


    Mousis, Olivier Lakhlifi, Azzedine Picaud, Sylvain Pasek, Matthew and Chassefière, Eric 2013. On the Abundances of Noble and Biologically Relevant Gases in Lake Vostok, Antarctica. Astrobiology, Vol. 13, Issue. 4, p. 380.


    Priscu, J.C. Christner, B.C. Foreman, C.M. and Royston-Bishop, G. 2013. Encyclopedia of Quaternary Science.


    Rogers, Scott Shtarkman, Yury Koçer, Zeynep Edgar, Robyn Veerapaneni, Ram and D'Elia, Tom 2013. Ecology of Subglacial Lake Vostok (Antarctica), Based on Metagenomic/Metatranscriptomic Analyses of Accretion Ice. Biology, Vol. 2, Issue. 2, p. 629.


    Sinha, Rupesh Kumar and Krishnan, Kottekkatu Padinchati 2013. Novel opportunity for understanding origin and evolution of life: perspectives on the exploration of subglacial environment of Lake Vostok, Antarctica. Annals of Microbiology, Vol. 63, Issue. 2, p. 409.


    Wilkins, David Yau, Sheree Williams, Timothy J. Allen, Michelle A. Brown, Mark V. DeMaere, Matthew Z. Lauro, Federico M. and Cavicchioli, Ricardo 2013. Key microbial drivers in Antarctic aquatic environments. FEMS Microbiology Reviews, Vol. 37, Issue. 3, p. 303.


    Pearce, David A. and Laybourn-Parry, Johanna 2012. Antarctic Ecosystems.


    Bulat, Sergey A. Alekhina, Irina A. Marie, Dominique Martins, Jean and Petit, Jean Robert 2011. Searching for life in extreme environments relevant to Jovian’s Europa: Lessons from subglacial ice studies at Lake Vostok (East Antarctica). Advances in Space Research, Vol. 48, Issue. 4, p. 697.


    Chuvochina, M. S. Alekhina, I. A. Normand, P. Petit, J. -R. and Bulat, S. A. 2011. Three events of Saharan dust deposition on the Mont Blanc glacier associated with different snow-colonizing bacterial phylotypes. Microbiology, Vol. 80, Issue. 1, p. 125.


    Karlov, D. S. Marie, D. Chuvochina, M. S. Alekhina, I. A. and Bulat, S. A. 2011. Microbial communities of water column of Lake Radok, East Antarctica, dominated by abundant actinobacterium “Candidatus Planktophila limnetica”. Microbiology, Vol. 80, Issue. 4, p. 576.


    Kennicutt, Mahlon C. and Siegert, Martin J. 2011. Antarctic Subglacial Aquatic Environments.


    Leichenkov, G. L. Belyavsky, B. V. Antonov, A. V. Rodionov, N. V. and Sergeev, S. A. 2011. First information about the geology of central antarctica based on study of mineral inclusions in ice cores of the Vostok station borehole. Doklady Earth Sciences, Vol. 440, Issue. 1, p. 1207.


    Lorenz, Ralph D. Gleeson, Damhnait Prieto-Ballesteros, Olga Gomez, Felipe Hand, Kevin and Bulat, Sergey 2011. Analog environments for a Europa lander mission. Advances in Space Research, Vol. 48, Issue. 4, p. 689.


    Lukin, Valery and Bulat, Sergey 2011. Antarctic Subglacial Aquatic Environments.


    Margesin, Rosa and Miteva, Vanya 2011. Diversity and ecology of psychrophilic microorganisms. Research in Microbiology, Vol. 162, Issue. 3, p. 346.


    ×
  • International Journal of Astrobiology, Volume 3, Issue 1
  • January 2004, pp. 1-12

DNA signature of thermophilic bacteria from the aged accretion ice of Lake Vostok, Antarctica: implications for searching for life in extreme icy environments

  • Sergey A. Bulat (a1) (a2) (a3), Irina A. Alekhina (a1), Michel Blot (a2), Jean-Robert Petit (a3), Martine de Angelis (a3), Dietmar Wagenbach (a4), Vladimir Ya. Lipenkov (a5), Lada P. Vasilyeva (a1), Dominika M. Wloch (a2), Dominique Raynaud (a3) and Valery V. Lukin (a5)
  • DOI: http://dx.doi.org/10.1017/S1473550404001879
  • Published online: 05 August 2004
Abstract

We have used 16S ribosomal genes to estimate the bacterial contents of Lake Vostok accretion ice samples at 3551 m and 3607 m, both containing sediment inclusions and formed 20000–15000 yr ago. Decontamination proved to be a critical issue, and we used stringent ice chemistry-based procedures and comprehensive biological controls in order to restrain contamination. As a result, up to now we have only recognized one 16S rDNA bacterial phylotype with confident relevance to the lake environment. It was found in one sample at 3607 m depth and represents the extant thermophilic facultative chemolithoautotroph Hydrogenophilus thermoluteolus of beta-Proteobacteria, and until now had only been found in hot springs. No confident findings were detected in the sample at 3551 m, and all other phylotypes revealed (a total of 16 phylotypes, 336 clones including controls) are presumed to be contaminants. It seems that the Lake Vostok accretion ice is actually microbe-free, indicating that the water body should also be hosting a highly sparse life. The message of thermophilic bacteria suggests that a geothermal system exists beneath the cold water body of Lake Vostok, what is supported by the geological setting, the long-term seismotectonic evidence from 4He degassing and the ‘18O shift’ of the Vostok accretion ice. The seismotectonic activity that seems to operate in deep faults beneath the lake could sustain thermophilic chemolithoautotrophic microbial communities. Such a primary production scenario for Lake Vostok may have relevance for icy planets and the approaches used for estimating microbial contents in accretion ice are clearly relevant for searching for extraterrestrial life.

Copyright
Recommend this journal

Email your librarian or administrator to recommend adding this journal to your organisation's collection.

International Journal of Astrobiology
  • ISSN: 1473-5504
  • EISSN: 1475-3006
  • URL: /core/journals/international-journal-of-astrobiology
Please enter your name
Please enter a valid email address
Who would you like to send this to? *
×

Keywords: