Mini-Review: Probing the limits of extremophilic life in extraterrestrial environment-simulated experiments

Astrobiology is a relatively recent scientific field that seeks to understand the origin and dynamics of life in the Universe. Several hypotheses have been proposed to explain life in the cosmic context throughout human history, but only now, technology has allowed many of them to be tested. Laborat...

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Autores principales:	Lage, C.A.S., Dalmaso, G.Z.L., Teixeira, L.C.R.S., Bendia, A.G., Paulino-Lima, I.G., Galante, D., Janot-Pacheco, E., Abrevaya, X.C., Azúa-Bustos, A., Pelizzari, V.H., Rosado, A.S.
Formato:	JOUR
Materias:	Astrobiology Cosmic dust Extremophiles Panspermia Ultraviolet carbon experimental study extremophile hydrogen laboratory method microorganism nitrogen oxygen solar radiation terrestrial environment
Acceso en línea:	http://hdl.handle.net/20.500.12110/paper_14735504_v11_n4_p251_Lage
Aporte de:	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires

id	todo:paper_14735504_v11_n4_p251_Lage
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spelling	todo:paper_14735504_v11_n4_p251_Lage2023-10-03T16:18:11Z Mini-Review: Probing the limits of extremophilic life in extraterrestrial environment-simulated experiments Lage, C.A.S. Dalmaso, G.Z.L. Teixeira, L.C.R.S. Bendia, A.G. Paulino-Lima, I.G. Galante, D. Janot-Pacheco, E. Abrevaya, X.C. Azúa-Bustos, A. Pelizzari, V.H. Rosado, A.S. Astrobiology Cosmic dust Extremophiles Panspermia Ultraviolet carbon experimental study extremophile hydrogen laboratory method microorganism nitrogen oxygen solar radiation terrestrial environment Astrobiology is a relatively recent scientific field that seeks to understand the origin and dynamics of life in the Universe. Several hypotheses have been proposed to explain life in the cosmic context throughout human history, but only now, technology has allowed many of them to be tested. Laboratory experiments have been able to show how chemical elements essential to life, such as carbon, nitrogen, oxygen and hydrogen combine in biologically important compounds. Interestingly, these compounds are ubiquitous. How these compounds were combined to the point of originating cells and complex organisms is still to be unveiled by science. However, our 4.5 billion years old Solar system appeared in a 10 billion years old Universe. Thus, simple cells such as micro-organisms may have had time to form in planets older than ours or in other suitable places in the Universe. One hypothesis related to the appearance of life on Earth is called panspermia, which predicts that microbial life could have been formed in the Universe billions of years ago, travelling between planets, and inseminating units of life that could have become more complex in habitable planets such as Earth. A project designed to test the viability of extremophile micro-organisms exposed to simulated extraterrestrial environments is in progress at the Carlos Chagas Filho Institute of Biophysics (UFRJ, Brazil) to test whether microbial life could withstand inhospitable environments. Radiation-resistant (known or novel ones) micro-organisms collected from extreme terrestrial environments have been exposed (at synchrotron accelerators) to intense radiation sources simulating Solar radiation, capable of emitting radiation in a few hours equivalent to many years of accumulated doses. The results obtained in these experiments reveal an interesting possibility of the existence of microbial life beyond Earth. Copyright © Cambridge University Press 2012. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_14735504_v11_n4_p251_Lage
institution	Universidad de Buenos Aires
institution_str	I-28
repository_str	R-134
collection	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic	Astrobiology Cosmic dust Extremophiles Panspermia Ultraviolet carbon experimental study extremophile hydrogen laboratory method microorganism nitrogen oxygen solar radiation terrestrial environment
spellingShingle	Astrobiology Cosmic dust Extremophiles Panspermia Ultraviolet carbon experimental study extremophile hydrogen laboratory method microorganism nitrogen oxygen solar radiation terrestrial environment Lage, C.A.S. Dalmaso, G.Z.L. Teixeira, L.C.R.S. Bendia, A.G. Paulino-Lima, I.G. Galante, D. Janot-Pacheco, E. Abrevaya, X.C. Azúa-Bustos, A. Pelizzari, V.H. Rosado, A.S. Mini-Review: Probing the limits of extremophilic life in extraterrestrial environment-simulated experiments
topic_facet	Astrobiology Cosmic dust Extremophiles Panspermia Ultraviolet carbon experimental study extremophile hydrogen laboratory method microorganism nitrogen oxygen solar radiation terrestrial environment
description	Astrobiology is a relatively recent scientific field that seeks to understand the origin and dynamics of life in the Universe. Several hypotheses have been proposed to explain life in the cosmic context throughout human history, but only now, technology has allowed many of them to be tested. Laboratory experiments have been able to show how chemical elements essential to life, such as carbon, nitrogen, oxygen and hydrogen combine in biologically important compounds. Interestingly, these compounds are ubiquitous. How these compounds were combined to the point of originating cells and complex organisms is still to be unveiled by science. However, our 4.5 billion years old Solar system appeared in a 10 billion years old Universe. Thus, simple cells such as micro-organisms may have had time to form in planets older than ours or in other suitable places in the Universe. One hypothesis related to the appearance of life on Earth is called panspermia, which predicts that microbial life could have been formed in the Universe billions of years ago, travelling between planets, and inseminating units of life that could have become more complex in habitable planets such as Earth. A project designed to test the viability of extremophile micro-organisms exposed to simulated extraterrestrial environments is in progress at the Carlos Chagas Filho Institute of Biophysics (UFRJ, Brazil) to test whether microbial life could withstand inhospitable environments. Radiation-resistant (known or novel ones) micro-organisms collected from extreme terrestrial environments have been exposed (at synchrotron accelerators) to intense radiation sources simulating Solar radiation, capable of emitting radiation in a few hours equivalent to many years of accumulated doses. The results obtained in these experiments reveal an interesting possibility of the existence of microbial life beyond Earth. Copyright © Cambridge University Press 2012.
format	JOUR
author	Lage, C.A.S. Dalmaso, G.Z.L. Teixeira, L.C.R.S. Bendia, A.G. Paulino-Lima, I.G. Galante, D. Janot-Pacheco, E. Abrevaya, X.C. Azúa-Bustos, A. Pelizzari, V.H. Rosado, A.S.
author_facet	Lage, C.A.S. Dalmaso, G.Z.L. Teixeira, L.C.R.S. Bendia, A.G. Paulino-Lima, I.G. Galante, D. Janot-Pacheco, E. Abrevaya, X.C. Azúa-Bustos, A. Pelizzari, V.H. Rosado, A.S.
author_sort	Lage, C.A.S.
title	Mini-Review: Probing the limits of extremophilic life in extraterrestrial environment-simulated experiments
title_short	Mini-Review: Probing the limits of extremophilic life in extraterrestrial environment-simulated experiments
title_full	Mini-Review: Probing the limits of extremophilic life in extraterrestrial environment-simulated experiments
title_fullStr	Mini-Review: Probing the limits of extremophilic life in extraterrestrial environment-simulated experiments
title_full_unstemmed	Mini-Review: Probing the limits of extremophilic life in extraterrestrial environment-simulated experiments
title_sort	mini-review: probing the limits of extremophilic life in extraterrestrial environment-simulated experiments
url	http://hdl.handle.net/20.500.12110/paper_14735504_v11_n4_p251_Lage
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Mini-Review: Probing the limits of extremophilic life in extraterrestrial environment-simulated experiments

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