Perchlorate and halophilic prokaryotes: implications for possible halophilic life on Mars
Abstract In view of the finding of perchlorate among the salts detected by the Phoenix Lander on Mars, we investigated the relationships of halophilic heterotrophic microorganisms (archaea of the family Halobacteriaceae and the bacterium Halomonas elongata) toward perchlorate. All strains tested gre...
Ausführliche Beschreibung
Gespeichert in:
| Autor*in: |
Oren, Aharon [verfasserIn] Elevi Bardavid, Rahel [verfasserIn] Mana, Lily [verfasserIn] |
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E-Artikel |
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| Sprache: |
Englisch |
| Erschienen: |
2013 |
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| Schlagwörter: |
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Enthalten in: Extremophiles - Springer-Verlag, 2001, 18(2013), 1 vom: 23. Okt., Seite 75-80 |
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volume:18 ; year:2013 ; number:1 ; day:23 ; month:10 ; pages:75-80 |
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10.1007/s00792-013-0594-9 |
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| 520 | |a Abstract In view of the finding of perchlorate among the salts detected by the Phoenix Lander on Mars, we investigated the relationships of halophilic heterotrophic microorganisms (archaea of the family Halobacteriaceae and the bacterium Halomonas elongata) toward perchlorate. All strains tested grew well in NaCl-based media containing 0.4 M perchlorate, but at the highest perchlorate concentrations, tested cells were swollen or distorted. Some species (Haloferax mediterranei, Haloferax denitrificans, Haloferax gibbonsii, Haloarcula marismortui, Haloarcula vallismortis) could use perchlorate as an electron acceptor for anaerobic growth. Although perchlorate is highly oxidizing, its presence at a concentration of 0.2 M for up to 2 weeks did not negatively affect the ability of a yeast extract-based medium to support growth of the archaeon Halobacterium salinarum. These findings show that presence of perchlorate among the salts on Mars does not preclude the possibility of halophilic life. If indeed the liquid brines that may exist on Mars are inhabited by salt-requiring or salt-tolerant microorganisms similar to the halophiles on Earth, presence of perchlorate may even be stimulatory when it can serve as an electron acceptor for respiratory activity in the anaerobic Martian environment. | ||
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10.1007/s00792-013-0594-9 doi (DE-627)SPR007862091 (SPR)s00792-013-0594-9-e DE-627 ger DE-627 rakwb eng Oren, Aharon verfasserin aut Perchlorate and halophilic prokaryotes: implications for possible halophilic life on Mars 2013 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Abstract In view of the finding of perchlorate among the salts detected by the Phoenix Lander on Mars, we investigated the relationships of halophilic heterotrophic microorganisms (archaea of the family Halobacteriaceae and the bacterium Halomonas elongata) toward perchlorate. All strains tested grew well in NaCl-based media containing 0.4 M perchlorate, but at the highest perchlorate concentrations, tested cells were swollen or distorted. Some species (Haloferax mediterranei, Haloferax denitrificans, Haloferax gibbonsii, Haloarcula marismortui, Haloarcula vallismortis) could use perchlorate as an electron acceptor for anaerobic growth. Although perchlorate is highly oxidizing, its presence at a concentration of 0.2 M for up to 2 weeks did not negatively affect the ability of a yeast extract-based medium to support growth of the archaeon Halobacterium salinarum. These findings show that presence of perchlorate among the salts on Mars does not preclude the possibility of halophilic life. If indeed the liquid brines that may exist on Mars are inhabited by salt-requiring or salt-tolerant microorganisms similar to the halophiles on Earth, presence of perchlorate may even be stimulatory when it can serve as an electron acceptor for respiratory activity in the anaerobic Martian environment. Perchlorate (dpeaa)DE-He213 Halophilic archaea (dpeaa)DE-He213 Anaerobic respiration (dpeaa)DE-He213 Mars (dpeaa)DE-He213 Elevi Bardavid, Rahel verfasserin aut Mana, Lily verfasserin aut Enthalten in Extremophiles Springer-Verlag, 2001 18(2013), 1 vom: 23. Okt., Seite 75-80 (DE-627)SPR007852657 nnns volume:18 year:2013 number:1 day:23 month:10 pages:75-80 https://dx.doi.org/10.1007/s00792-013-0594-9 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER AR 18 2013 1 23 10 75-80 |
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10.1007/s00792-013-0594-9 doi (DE-627)SPR007862091 (SPR)s00792-013-0594-9-e DE-627 ger DE-627 rakwb eng Oren, Aharon verfasserin aut Perchlorate and halophilic prokaryotes: implications for possible halophilic life on Mars 2013 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Abstract In view of the finding of perchlorate among the salts detected by the Phoenix Lander on Mars, we investigated the relationships of halophilic heterotrophic microorganisms (archaea of the family Halobacteriaceae and the bacterium Halomonas elongata) toward perchlorate. All strains tested grew well in NaCl-based media containing 0.4 M perchlorate, but at the highest perchlorate concentrations, tested cells were swollen or distorted. Some species (Haloferax mediterranei, Haloferax denitrificans, Haloferax gibbonsii, Haloarcula marismortui, Haloarcula vallismortis) could use perchlorate as an electron acceptor for anaerobic growth. Although perchlorate is highly oxidizing, its presence at a concentration of 0.2 M for up to 2 weeks did not negatively affect the ability of a yeast extract-based medium to support growth of the archaeon Halobacterium salinarum. These findings show that presence of perchlorate among the salts on Mars does not preclude the possibility of halophilic life. If indeed the liquid brines that may exist on Mars are inhabited by salt-requiring or salt-tolerant microorganisms similar to the halophiles on Earth, presence of perchlorate may even be stimulatory when it can serve as an electron acceptor for respiratory activity in the anaerobic Martian environment. Perchlorate (dpeaa)DE-He213 Halophilic archaea (dpeaa)DE-He213 Anaerobic respiration (dpeaa)DE-He213 Mars (dpeaa)DE-He213 Elevi Bardavid, Rahel verfasserin aut Mana, Lily verfasserin aut Enthalten in Extremophiles Springer-Verlag, 2001 18(2013), 1 vom: 23. Okt., Seite 75-80 (DE-627)SPR007852657 nnns volume:18 year:2013 number:1 day:23 month:10 pages:75-80 https://dx.doi.org/10.1007/s00792-013-0594-9 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER AR 18 2013 1 23 10 75-80 |
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10.1007/s00792-013-0594-9 doi (DE-627)SPR007862091 (SPR)s00792-013-0594-9-e DE-627 ger DE-627 rakwb eng Oren, Aharon verfasserin aut Perchlorate and halophilic prokaryotes: implications for possible halophilic life on Mars 2013 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Abstract In view of the finding of perchlorate among the salts detected by the Phoenix Lander on Mars, we investigated the relationships of halophilic heterotrophic microorganisms (archaea of the family Halobacteriaceae and the bacterium Halomonas elongata) toward perchlorate. All strains tested grew well in NaCl-based media containing 0.4 M perchlorate, but at the highest perchlorate concentrations, tested cells were swollen or distorted. Some species (Haloferax mediterranei, Haloferax denitrificans, Haloferax gibbonsii, Haloarcula marismortui, Haloarcula vallismortis) could use perchlorate as an electron acceptor for anaerobic growth. Although perchlorate is highly oxidizing, its presence at a concentration of 0.2 M for up to 2 weeks did not negatively affect the ability of a yeast extract-based medium to support growth of the archaeon Halobacterium salinarum. These findings show that presence of perchlorate among the salts on Mars does not preclude the possibility of halophilic life. If indeed the liquid brines that may exist on Mars are inhabited by salt-requiring or salt-tolerant microorganisms similar to the halophiles on Earth, presence of perchlorate may even be stimulatory when it can serve as an electron acceptor for respiratory activity in the anaerobic Martian environment. Perchlorate (dpeaa)DE-He213 Halophilic archaea (dpeaa)DE-He213 Anaerobic respiration (dpeaa)DE-He213 Mars (dpeaa)DE-He213 Elevi Bardavid, Rahel verfasserin aut Mana, Lily verfasserin aut Enthalten in Extremophiles Springer-Verlag, 2001 18(2013), 1 vom: 23. Okt., Seite 75-80 (DE-627)SPR007852657 nnns volume:18 year:2013 number:1 day:23 month:10 pages:75-80 https://dx.doi.org/10.1007/s00792-013-0594-9 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER AR 18 2013 1 23 10 75-80 |
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10.1007/s00792-013-0594-9 doi (DE-627)SPR007862091 (SPR)s00792-013-0594-9-e DE-627 ger DE-627 rakwb eng Oren, Aharon verfasserin aut Perchlorate and halophilic prokaryotes: implications for possible halophilic life on Mars 2013 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Abstract In view of the finding of perchlorate among the salts detected by the Phoenix Lander on Mars, we investigated the relationships of halophilic heterotrophic microorganisms (archaea of the family Halobacteriaceae and the bacterium Halomonas elongata) toward perchlorate. All strains tested grew well in NaCl-based media containing 0.4 M perchlorate, but at the highest perchlorate concentrations, tested cells were swollen or distorted. Some species (Haloferax mediterranei, Haloferax denitrificans, Haloferax gibbonsii, Haloarcula marismortui, Haloarcula vallismortis) could use perchlorate as an electron acceptor for anaerobic growth. Although perchlorate is highly oxidizing, its presence at a concentration of 0.2 M for up to 2 weeks did not negatively affect the ability of a yeast extract-based medium to support growth of the archaeon Halobacterium salinarum. These findings show that presence of perchlorate among the salts on Mars does not preclude the possibility of halophilic life. If indeed the liquid brines that may exist on Mars are inhabited by salt-requiring or salt-tolerant microorganisms similar to the halophiles on Earth, presence of perchlorate may even be stimulatory when it can serve as an electron acceptor for respiratory activity in the anaerobic Martian environment. Perchlorate (dpeaa)DE-He213 Halophilic archaea (dpeaa)DE-He213 Anaerobic respiration (dpeaa)DE-He213 Mars (dpeaa)DE-He213 Elevi Bardavid, Rahel verfasserin aut Mana, Lily verfasserin aut Enthalten in Extremophiles Springer-Verlag, 2001 18(2013), 1 vom: 23. Okt., Seite 75-80 (DE-627)SPR007852657 nnns volume:18 year:2013 number:1 day:23 month:10 pages:75-80 https://dx.doi.org/10.1007/s00792-013-0594-9 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER AR 18 2013 1 23 10 75-80 |
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10.1007/s00792-013-0594-9 doi (DE-627)SPR007862091 (SPR)s00792-013-0594-9-e DE-627 ger DE-627 rakwb eng Oren, Aharon verfasserin aut Perchlorate and halophilic prokaryotes: implications for possible halophilic life on Mars 2013 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Abstract In view of the finding of perchlorate among the salts detected by the Phoenix Lander on Mars, we investigated the relationships of halophilic heterotrophic microorganisms (archaea of the family Halobacteriaceae and the bacterium Halomonas elongata) toward perchlorate. All strains tested grew well in NaCl-based media containing 0.4 M perchlorate, but at the highest perchlorate concentrations, tested cells were swollen or distorted. Some species (Haloferax mediterranei, Haloferax denitrificans, Haloferax gibbonsii, Haloarcula marismortui, Haloarcula vallismortis) could use perchlorate as an electron acceptor for anaerobic growth. Although perchlorate is highly oxidizing, its presence at a concentration of 0.2 M for up to 2 weeks did not negatively affect the ability of a yeast extract-based medium to support growth of the archaeon Halobacterium salinarum. These findings show that presence of perchlorate among the salts on Mars does not preclude the possibility of halophilic life. If indeed the liquid brines that may exist on Mars are inhabited by salt-requiring or salt-tolerant microorganisms similar to the halophiles on Earth, presence of perchlorate may even be stimulatory when it can serve as an electron acceptor for respiratory activity in the anaerobic Martian environment. Perchlorate (dpeaa)DE-He213 Halophilic archaea (dpeaa)DE-He213 Anaerobic respiration (dpeaa)DE-He213 Mars (dpeaa)DE-He213 Elevi Bardavid, Rahel verfasserin aut Mana, Lily verfasserin aut Enthalten in Extremophiles Springer-Verlag, 2001 18(2013), 1 vom: 23. Okt., Seite 75-80 (DE-627)SPR007852657 nnns volume:18 year:2013 number:1 day:23 month:10 pages:75-80 https://dx.doi.org/10.1007/s00792-013-0594-9 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER AR 18 2013 1 23 10 75-80 |
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Perchlorate and halophilic prokaryotes: implications for possible halophilic life on Mars |
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Abstract In view of the finding of perchlorate among the salts detected by the Phoenix Lander on Mars, we investigated the relationships of halophilic heterotrophic microorganisms (archaea of the family Halobacteriaceae and the bacterium Halomonas elongata) toward perchlorate. All strains tested grew well in NaCl-based media containing 0.4 M perchlorate, but at the highest perchlorate concentrations, tested cells were swollen or distorted. Some species (Haloferax mediterranei, Haloferax denitrificans, Haloferax gibbonsii, Haloarcula marismortui, Haloarcula vallismortis) could use perchlorate as an electron acceptor for anaerobic growth. Although perchlorate is highly oxidizing, its presence at a concentration of 0.2 M for up to 2 weeks did not negatively affect the ability of a yeast extract-based medium to support growth of the archaeon Halobacterium salinarum. These findings show that presence of perchlorate among the salts on Mars does not preclude the possibility of halophilic life. If indeed the liquid brines that may exist on Mars are inhabited by salt-requiring or salt-tolerant microorganisms similar to the halophiles on Earth, presence of perchlorate may even be stimulatory when it can serve as an electron acceptor for respiratory activity in the anaerobic Martian environment. |
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Abstract In view of the finding of perchlorate among the salts detected by the Phoenix Lander on Mars, we investigated the relationships of halophilic heterotrophic microorganisms (archaea of the family Halobacteriaceae and the bacterium Halomonas elongata) toward perchlorate. All strains tested grew well in NaCl-based media containing 0.4 M perchlorate, but at the highest perchlorate concentrations, tested cells were swollen or distorted. Some species (Haloferax mediterranei, Haloferax denitrificans, Haloferax gibbonsii, Haloarcula marismortui, Haloarcula vallismortis) could use perchlorate as an electron acceptor for anaerobic growth. Although perchlorate is highly oxidizing, its presence at a concentration of 0.2 M for up to 2 weeks did not negatively affect the ability of a yeast extract-based medium to support growth of the archaeon Halobacterium salinarum. These findings show that presence of perchlorate among the salts on Mars does not preclude the possibility of halophilic life. If indeed the liquid brines that may exist on Mars are inhabited by salt-requiring or salt-tolerant microorganisms similar to the halophiles on Earth, presence of perchlorate may even be stimulatory when it can serve as an electron acceptor for respiratory activity in the anaerobic Martian environment. |
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Abstract In view of the finding of perchlorate among the salts detected by the Phoenix Lander on Mars, we investigated the relationships of halophilic heterotrophic microorganisms (archaea of the family Halobacteriaceae and the bacterium Halomonas elongata) toward perchlorate. All strains tested grew well in NaCl-based media containing 0.4 M perchlorate, but at the highest perchlorate concentrations, tested cells were swollen or distorted. Some species (Haloferax mediterranei, Haloferax denitrificans, Haloferax gibbonsii, Haloarcula marismortui, Haloarcula vallismortis) could use perchlorate as an electron acceptor for anaerobic growth. Although perchlorate is highly oxidizing, its presence at a concentration of 0.2 M for up to 2 weeks did not negatively affect the ability of a yeast extract-based medium to support growth of the archaeon Halobacterium salinarum. These findings show that presence of perchlorate among the salts on Mars does not preclude the possibility of halophilic life. If indeed the liquid brines that may exist on Mars are inhabited by salt-requiring or salt-tolerant microorganisms similar to the halophiles on Earth, presence of perchlorate may even be stimulatory when it can serve as an electron acceptor for respiratory activity in the anaerobic Martian environment. |
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Perchlorate and halophilic prokaryotes: implications for possible halophilic life on Mars |
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Elevi Bardavid, Rahel Mana, Lily |
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