Zobrazeno 1 - 10
of 29
pro vyhledávání: '"Timothy A. Kral"'
Publikováno v:
Microorganisms, Vol 6, Iss 2, p 34 (2018)
Although the martian environment is currently cold and dry, geomorphological features on the surface of the planet indicate relatively recent (
Externí odkaz:
https://doaj.org/article/e4d4f9be9093481c93dd82bd06d48f5f
Publikováno v:
Planetary and Space Science. 157:63-71
Polygonal ground and other geomorphological features reminiscent of recent freeze/thaw cycling are evident on Mars, despite the widespread belief that the planet is currently inhospitably cold and dry. On Earth, permafrost microbial communities are s
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d8805c47e9528fd488777c5ad24a688d
https://doi.org/10.1016/j.pss.2018.03.012
https://doi.org/10.1016/j.pss.2018.03.012
Autor:
Timothy A. Kral, R. L. Mickol
Publikováno v:
Planetary and Space Science. 153:79-88
Low pressure is often overlooked in terms of possible biocidal effects when considering a habitable environment on Mars. Few experiments have investigated the ability for microorganisms to actively grow under low pressure conditions, despite the atmo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ad4704847df9cbea47c840b0cd19cc6c
https://doi.org/10.1016/j.pss.2017.12.014
https://doi.org/10.1016/j.pss.2017.12.014
Publikováno v:
Planetary and Space Science. 136:15-24
Life as we know it requires liquid water and sufficient liquid water is highly unlikely on the surface of present-day Mars. However, according to thermal models there is a possibility of liquid water in the deep subsurface of Mars. Thus, the martian
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::94a278f3d1e4bfe52550241c854672c3
https://doi.org/10.1016/j.pss.2016.11.012
https://doi.org/10.1016/j.pss.2016.11.012
Autor:
Timothy H. Goodhart, Joshua D. Harpool, Stanley W. McSpadden, Timothy A. Kral, Graham L. McCracken, Christopher E. Hearnsberger
Publikováno v:
Planetary and Space Science. 120:87-95
In 2008, the Mars Phoenix Lander discovered perchlorate at its landing site, and in 2012, the Curiosity rover confirmed the presence of perchlorate on Mars. The research reported here was designed to determine if certain methanogens could grow in the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::040c2363af4f468a7c66a804d95516ac
https://doi.org/10.1016/j.pss.2015.11.014
https://doi.org/10.1016/j.pss.2015.11.014
Publikováno v:
Microorganisms; Volume 6; Issue 2; Pages: 34
Microorganisms, Vol 6, Iss 2, p 34 (2018)
Microorganisms
Microorganisms, Vol 6, Iss 2, p 34 (2018)
Microorganisms
Although the martian environment is currently cold and dry, geomorphological features on the surface of the planet indicate relatively recent (
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3af19a788cdd10e760f289bff736c7db
In order to examine the potential survivability of life in the Martian deep subsurface, we have investigated the effects of temperature (45°C, 55°C, and 65°C) and pressure (1 atm, 400 atm, 800 atm, and 1200 atm) on the growth, carbon isotopic data
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4ae5926d0d43aece728e4b1056daecbf
Autor:
Timothy A. Kral, Navita Sinha
Publikováno v:
Planetary and Space Science. 112:35-41
In order to characterize stable carbon (13C/12C) isotope fractionation of metabolically produced methane by methanogens in martian settings, Methanothermobacter wolfeii, Methanosarcina barkeri, and Methanobacterium formicicum were cultured on four di
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a20db9516c622239b86a43862d7740f6
https://doi.org/10.1016/j.pss.2015.04.011
https://doi.org/10.1016/j.pss.2015.04.011
Publikováno v:
Planetary and Space Science. 101:181-185
Methanogens, microorganisms in the domain Archaea, have been studied as life forms that might inhabit the subsurface of Mars. These organisms can use carbon dioxide as a carbon source, a compound that is abundant in the martian atmosphere. But if the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b62f67ae7ce58b908ff121218465e1e3
https://doi.org/10.1016/j.pss.2014.07.008
https://doi.org/10.1016/j.pss.2014.07.008
Autor:
Timothy A. Kral, S. Travis Altheide
Publikováno v:
Planetary and Space Science. 89:167-171
Any life existing in the martian environment must be able to deal with relatively extreme factors including desiccation, low pressure, and the presence of different martian regoliths. We have been studying methanogens, microorganisms in the domain Ar
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bb1945e2062ab37332c6f6cf26e98746
https://doi.org/10.1016/j.pss.2013.09.010
https://doi.org/10.1016/j.pss.2013.09.010