Record details

Title
    First steps towards the remote detection of radiation resistant life forms
Author
    Adachi, T.
    Getty, S. A.
    Kletetschka, Günther
Conference
    Japan Geoscience Union Meeting 2008 (25.05.2008-30.05.2008 : Chiba, Japonsko)
Language
    anglicky
Publication type
    abstrakt
Source title - monograph
    Japan Geoscience Union Meeting 2008
Pages
    P222-001-P222-001
Notes
    Překlad názvu: První kroky k detekci radiačně rezistentních organismů na dálku
    Rozsah: 1 s. : CD-ROM
    Výzkumný záměr: CEZ:AV0Z30130516
Subject category
    DNA detection
    microelectronics
    radiations
    silicon nanovires
    space
Keyword
    Detection
    First
    Forms
    Life
    Radiation
    Remote
    Resistant
    Steps
    Towards
Abstract (in english)
   Extraterrestrial space is where life may have existed or still exists. Given our experience with terrestrial life we identify terrestrial organisms that are able to withstand significant doses of radiations. These are radiodurans (prokaryotes) and tardigrada and rotifera (eukaryotes). Radiation resistant organisms can repair very efficiently double strand brakes (DSBs) of DNA and this seems to be significant advantage in resistance against radiation. Recent progress in understanding the radiation resistance in D. radiodurans is leading us to conduct an analysis of other radiation tolerant bacteria in an attempt to determine whether they are using similar or different strategies and to attempt answer the question of whether convergent evolution for radiation resistance (and/or desiccation tolerance) has taken place. There may be 3 or 4 groups of genes for the complete radiation resistance. At the top of our list is the PprA gene and the Ddr[ABCD] genes.
Contributor
    AV ČR Brno, Geologický ústav
Contributor code
    AV ČR, GLÚ
Source format
    U
Import date
    8. 8. 2012