Matches in SemOpenAlex for { <https://semopenalex.org/work/W3096001609> ?p ?o ?g. }
Showing items 1 to 40 of
40
with 100 items per page.
- W3096001609 abstract "<p>Ultraviolet (UV) irradiation on the surface of Mars is an important factor a&#64256;ecting the survivability of microorganisms on Mars. The possibility of Martian brines made from Fe<sub>2</sub>(SO<sub>4</sub>)<sub>3</sub>, MnSO<sub>4</sub>, and MgSO<sub>4</sub> salts providing a habitable niche on Mars via attenuation of UV radiation was investigated on the bacteria Bacillus subtilis and Enterococcus faecalis. Results demonstrated that it is possible for brines containing Fe<sub>2</sub>(SO<sub>4</sub>)<sub>3 </sub>on Mars to provide protection from harmful UV radiation, even at concentrations as low as 0.5%. Brines made from MnSO<sub>4</sub> and MgSO<sub>4</sub>, did not provide significant UV protection and most spores/cells died over the course of short-term experiments.</p> <p>However, Fe<sub>2</sub>(SO<sub>4</sub>)<sub>3 </sub>brines are strongly acidic, and thus, were lethal to E. faecalis. In contrast, B. subtilis, as a spore-forming bacterium resistant to pH extremes, was una&#64256;ected by the acidic conditions of the brines and did not experience any significant lethal e&#64256;ects. Any extant microbial life in Martian Fe<sub>2</sub>(SO<sub>4</sub>)<sub>3 </sub>brines (if present) would need to be capable of surviving acidic environments, if these brines are to be considered a possible habitable niche.</p> <p>The results from this work are important to both the search for life on planets with an atmosphere unable to significantly attenuate UV radiation (i.e., like Mars); and for planetary protection, since it is possible that terrestrial bacteria in the genus Bacillus are likely to survive in Fe-sulfate brines on Mars.</p> <p>Furthermore, preliminary work on UV and photosynthetically active radiation (PAR) light transmission and scattering through simulated Martian regolith and rock samples are also presented. Regoliths that block UV but allow for PAR would be likely candidates for supporting bacterial life.</p>" @default.
- W3096001609 created "2020-11-09" @default.
- W3096001609 creator A5011633187 @default.
- W3096001609 creator A5054021455 @default.
- W3096001609 creator A5080452009 @default.
- W3096001609 creator A5084900973 @default.
- W3096001609 date "2020-10-08" @default.
- W3096001609 modified "2023-09-25" @default.
- W3096001609 title "UV Protection of Bacteria Under Simulated Martian Conditions" @default.
- W3096001609 doi "https://doi.org/10.5194/epsc2020-59" @default.
- W3096001609 hasPublicationYear "2020" @default.
- W3096001609 type Work @default.
- W3096001609 sameAs 3096001609 @default.
- W3096001609 citedByCount "0" @default.
- W3096001609 crossrefType "posted-content" @default.
- W3096001609 hasAuthorship W3096001609A5011633187 @default.
- W3096001609 hasAuthorship W3096001609A5054021455 @default.
- W3096001609 hasAuthorship W3096001609A5080452009 @default.
- W3096001609 hasAuthorship W3096001609A5084900973 @default.
- W3096001609 hasConcept C185592680 @default.
- W3096001609 hasConcept C55493867 @default.
- W3096001609 hasConceptScore W3096001609C185592680 @default.
- W3096001609 hasConceptScore W3096001609C55493867 @default.
- W3096001609 hasLocation W30960016091 @default.
- W3096001609 hasOpenAccess W3096001609 @default.
- W3096001609 hasPrimaryLocation W30960016091 @default.
- W3096001609 hasRelatedWork W14175365 @default.
- W3096001609 hasRelatedWork W16804319 @default.
- W3096001609 hasRelatedWork W19828149 @default.
- W3096001609 hasRelatedWork W29611032 @default.
- W3096001609 hasRelatedWork W35075831 @default.
- W3096001609 hasRelatedWork W3587113 @default.
- W3096001609 hasRelatedWork W44300803 @default.
- W3096001609 hasRelatedWork W4814856 @default.
- W3096001609 hasRelatedWork W50255103 @default.
- W3096001609 hasRelatedWork W52159732 @default.
- W3096001609 isParatext "false" @default.
- W3096001609 isRetracted "false" @default.
- W3096001609 magId "3096001609" @default.
- W3096001609 workType "article" @default.