Surviving in hot and cold: psychrophiles and thermophiles from Deception Island volcano, Antarctica
Polar volcanoes harbor unique conditions of extreme temperature gradients capable of selecting different types of extremophiles. Deception Island is a marine stratovolcano located at Maritime Antarctica that is notable for its pronounced temperature gradients over very short distances, reaching valu...
Main Authors: | , , , , , , , |
---|---|
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
2018
|
Subjects: | |
Online Access: | https://discovery.ucl.ac.uk/id/eprint/10057182/7/Arashiro%20Pulschen%20VoR%20Bendia2018_Article_SurvivingInHotAndColdPsychroph.pdf https://discovery.ucl.ac.uk/id/eprint/10057182/ |
id |
ftucl:oai:eprints.ucl.ac.uk.OAI2:10057182 |
---|---|
record_format |
openpolar |
spelling |
ftucl:oai:eprints.ucl.ac.uk.OAI2:10057182 2023-12-24T10:11:09+01:00 Surviving in hot and cold: psychrophiles and thermophiles from Deception Island volcano, Antarctica Bendia, AG Araujo, GG Pulschen, AA Contro, B Duarte, RTD Rodrigues, F Galante, D Pellizari, VH 2018-11 text https://discovery.ucl.ac.uk/id/eprint/10057182/7/Arashiro%20Pulschen%20VoR%20Bendia2018_Article_SurvivingInHotAndColdPsychroph.pdf https://discovery.ucl.ac.uk/id/eprint/10057182/ eng eng https://discovery.ucl.ac.uk/id/eprint/10057182/7/Arashiro%20Pulschen%20VoR%20Bendia2018_Article_SurvivingInHotAndColdPsychroph.pdf https://discovery.ucl.ac.uk/id/eprint/10057182/ open Extremophiles , 22 (6) pp. 917-929. (2018) Astrobiology Deception Island Extremophiles Polar volcano Temperature gradient Article 2018 ftucl 2023-11-27T13:07:34Z Polar volcanoes harbor unique conditions of extreme temperature gradients capable of selecting different types of extremophiles. Deception Island is a marine stratovolcano located at Maritime Antarctica that is notable for its pronounced temperature gradients over very short distances, reaching values up to 100 °C in the fumaroles, and subzero temperatures next to the glaciers. Due to these characteristics, Deception can be considered an interesting analogue of extraterrestrial environments. Our main goal in this study was to isolate thermophilic and psychrophilic bacteria from sediments associated with fumaroles and glaciers from two geothermal sites in Deception Island, comprising temperatures between 0 and 98 °C, and to evaluate their survivability to desiccation and UV-C radiation. Our results revealed that culturable thermophiles and psychrophiles were recovered among the extreme temperature gradient in Deception volcano, which indicates that these extremophiles remain alive even when the conditions do not comprise their growth range. The viability of culturable psychrophiles in hyperthermophilic environments is still poorly understood and our work showed the importance of future studies about their survival strategies in high temperatures. Finally, the spore-forming thermophilic isolates which we found have displayed good survival to desiccation and UV-C irradiation, which suggests their potential to be further explored in astrobiological studies. Article in Journal/Newspaper Antarc* Antarctica Deception Island University College London: UCL Discovery Deception Island ENVELOPE(-60.633,-60.633,-62.950,-62.950) |
institution |
Open Polar |
collection |
University College London: UCL Discovery |
op_collection_id |
ftucl |
language |
English |
topic |
Astrobiology Deception Island Extremophiles Polar volcano Temperature gradient |
spellingShingle |
Astrobiology Deception Island Extremophiles Polar volcano Temperature gradient Bendia, AG Araujo, GG Pulschen, AA Contro, B Duarte, RTD Rodrigues, F Galante, D Pellizari, VH Surviving in hot and cold: psychrophiles and thermophiles from Deception Island volcano, Antarctica |
topic_facet |
Astrobiology Deception Island Extremophiles Polar volcano Temperature gradient |
description |
Polar volcanoes harbor unique conditions of extreme temperature gradients capable of selecting different types of extremophiles. Deception Island is a marine stratovolcano located at Maritime Antarctica that is notable for its pronounced temperature gradients over very short distances, reaching values up to 100 °C in the fumaroles, and subzero temperatures next to the glaciers. Due to these characteristics, Deception can be considered an interesting analogue of extraterrestrial environments. Our main goal in this study was to isolate thermophilic and psychrophilic bacteria from sediments associated with fumaroles and glaciers from two geothermal sites in Deception Island, comprising temperatures between 0 and 98 °C, and to evaluate their survivability to desiccation and UV-C radiation. Our results revealed that culturable thermophiles and psychrophiles were recovered among the extreme temperature gradient in Deception volcano, which indicates that these extremophiles remain alive even when the conditions do not comprise their growth range. The viability of culturable psychrophiles in hyperthermophilic environments is still poorly understood and our work showed the importance of future studies about their survival strategies in high temperatures. Finally, the spore-forming thermophilic isolates which we found have displayed good survival to desiccation and UV-C irradiation, which suggests their potential to be further explored in astrobiological studies. |
format |
Article in Journal/Newspaper |
author |
Bendia, AG Araujo, GG Pulschen, AA Contro, B Duarte, RTD Rodrigues, F Galante, D Pellizari, VH |
author_facet |
Bendia, AG Araujo, GG Pulschen, AA Contro, B Duarte, RTD Rodrigues, F Galante, D Pellizari, VH |
author_sort |
Bendia, AG |
title |
Surviving in hot and cold: psychrophiles and thermophiles from Deception Island volcano, Antarctica |
title_short |
Surviving in hot and cold: psychrophiles and thermophiles from Deception Island volcano, Antarctica |
title_full |
Surviving in hot and cold: psychrophiles and thermophiles from Deception Island volcano, Antarctica |
title_fullStr |
Surviving in hot and cold: psychrophiles and thermophiles from Deception Island volcano, Antarctica |
title_full_unstemmed |
Surviving in hot and cold: psychrophiles and thermophiles from Deception Island volcano, Antarctica |
title_sort |
surviving in hot and cold: psychrophiles and thermophiles from deception island volcano, antarctica |
publishDate |
2018 |
url |
https://discovery.ucl.ac.uk/id/eprint/10057182/7/Arashiro%20Pulschen%20VoR%20Bendia2018_Article_SurvivingInHotAndColdPsychroph.pdf https://discovery.ucl.ac.uk/id/eprint/10057182/ |
long_lat |
ENVELOPE(-60.633,-60.633,-62.950,-62.950) |
geographic |
Deception Island |
geographic_facet |
Deception Island |
genre |
Antarc* Antarctica Deception Island |
genre_facet |
Antarc* Antarctica Deception Island |
op_source |
Extremophiles , 22 (6) pp. 917-929. (2018) |
op_relation |
https://discovery.ucl.ac.uk/id/eprint/10057182/7/Arashiro%20Pulschen%20VoR%20Bendia2018_Article_SurvivingInHotAndColdPsychroph.pdf https://discovery.ucl.ac.uk/id/eprint/10057182/ |
op_rights |
open |
_version_ |
1786161275647033344 |