Short-chain n-alkanes in benthic mats and mosses from the Larsemann Hills, East Antarctica
Variation in leaf colour (green, red and grey) of mosses and lake benthic mats in Antarctica is often linked to water stress and ultraviolet light (UV-B) exposure. Changes in the abundance of organic compounds, such as pectin and phenols, are associated with mechanisms protecting against desiccation...
Published in: | Organic Geochemistry |
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2023
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Online Access: | http://resolver.tudelft.nl/uuid:9f8568c0-c53e-40de-9b7a-7167ffcb03ec https://doi.org/10.1016/j.orggeochem.2023.104587 |
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fttudelft:oai:tudelft.nl:uuid:9f8568c0-c53e-40de-9b7a-7167ffcb03ec 2024-02-11T09:58:20+01:00 Short-chain n-alkanes in benthic mats and mosses from the Larsemann Hills, East Antarctica Chatterjee, Subham (author) Das, Supriyo Kumar (author) Behera, Pravat Kumar (author) Ghosh, D. (author) Chakraborty, Arindam (author) Patel, Priyank Pravin (author) Ikehara, Minoru (author) 2023 http://resolver.tudelft.nl/uuid:9f8568c0-c53e-40de-9b7a-7167ffcb03ec https://doi.org/10.1016/j.orggeochem.2023.104587 en eng http://www.scopus.com/inward/record.url?scp=85151753056&partnerID=8YFLogxK Organic Geochemistry--0146-6380--dc006b9d-7dad-4407-a7da-1dd097b752db http://resolver.tudelft.nl/uuid:9f8568c0-c53e-40de-9b7a-7167ffcb03ec https://doi.org/10.1016/j.orggeochem.2023.104587 © 2023 Subham Chatterjee, Supriyo Kumar Das, Pravat Kumar Behera, D. Ghosh, Arindam Chakraborty, Priyank Pravin Patel, Minoru Ikehara Antarctica Benthic mat Larsemann Hills Moss n-alkanes Ultraviolet radiation journal article 2023 fttudelft https://doi.org/10.1016/j.orggeochem.2023.104587 2024-01-24T23:35:06Z Variation in leaf colour (green, red and grey) of mosses and lake benthic mats in Antarctica is often linked to water stress and ultraviolet light (UV-B) exposure. Changes in the abundance of organic compounds, such as pectin and phenols, are associated with mechanisms protecting against desiccation and UV radiation. However, the function of n-alkanes, especially against UV radiation, is rarely examined. Here, gas chromatography–mass spectrometry and Fourier-transform infrared spectroscopy analyses were performed to study the variation in n-alkanes in freshwater lake benthic mats and mosses collected from the Larsemann Hills in East Antarctica. Stable isotopes of organic carbon and nitrogen, environmental DNA characterisation and microscopy-based analyses are used to estimate the presence of cyanobacteria, algae and diatoms in moss and benthic mat consortia. Variation in the short-chain (n-C 17 to n-C 20 ) versus long-chain (n-C 21 to n-C 30 ) n-alkanes in the mosses and benthic mats with their colour were noted. The research links the relative abundance of short-chain n-alkanes to the UV-B exposure and proposes that Antarctic mosses and benthic mats synthesise short-chain n-alkanes for protection against UV-B. Green Open Access added to TU Delft Institutional Repository ‘You share, we take care!’ – Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public. Sanitary Engineering Article in Journal/Newspaper Antarc* Antarctic Antarctica East Antarctica Delft University of Technology: Institutional Repository Antarctic East Antarctica Larsemann Hills ENVELOPE(76.217,76.217,-69.400,-69.400) Organic Geochemistry 179 104587 |
institution |
Open Polar |
collection |
Delft University of Technology: Institutional Repository |
op_collection_id |
fttudelft |
language |
English |
topic |
Antarctica Benthic mat Larsemann Hills Moss n-alkanes Ultraviolet radiation |
spellingShingle |
Antarctica Benthic mat Larsemann Hills Moss n-alkanes Ultraviolet radiation Chatterjee, Subham (author) Das, Supriyo Kumar (author) Behera, Pravat Kumar (author) Ghosh, D. (author) Chakraborty, Arindam (author) Patel, Priyank Pravin (author) Ikehara, Minoru (author) Short-chain n-alkanes in benthic mats and mosses from the Larsemann Hills, East Antarctica |
topic_facet |
Antarctica Benthic mat Larsemann Hills Moss n-alkanes Ultraviolet radiation |
description |
Variation in leaf colour (green, red and grey) of mosses and lake benthic mats in Antarctica is often linked to water stress and ultraviolet light (UV-B) exposure. Changes in the abundance of organic compounds, such as pectin and phenols, are associated with mechanisms protecting against desiccation and UV radiation. However, the function of n-alkanes, especially against UV radiation, is rarely examined. Here, gas chromatography–mass spectrometry and Fourier-transform infrared spectroscopy analyses were performed to study the variation in n-alkanes in freshwater lake benthic mats and mosses collected from the Larsemann Hills in East Antarctica. Stable isotopes of organic carbon and nitrogen, environmental DNA characterisation and microscopy-based analyses are used to estimate the presence of cyanobacteria, algae and diatoms in moss and benthic mat consortia. Variation in the short-chain (n-C 17 to n-C 20 ) versus long-chain (n-C 21 to n-C 30 ) n-alkanes in the mosses and benthic mats with their colour were noted. The research links the relative abundance of short-chain n-alkanes to the UV-B exposure and proposes that Antarctic mosses and benthic mats synthesise short-chain n-alkanes for protection against UV-B. Green Open Access added to TU Delft Institutional Repository ‘You share, we take care!’ – Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public. Sanitary Engineering |
format |
Article in Journal/Newspaper |
author |
Chatterjee, Subham (author) Das, Supriyo Kumar (author) Behera, Pravat Kumar (author) Ghosh, D. (author) Chakraborty, Arindam (author) Patel, Priyank Pravin (author) Ikehara, Minoru (author) |
author_facet |
Chatterjee, Subham (author) Das, Supriyo Kumar (author) Behera, Pravat Kumar (author) Ghosh, D. (author) Chakraborty, Arindam (author) Patel, Priyank Pravin (author) Ikehara, Minoru (author) |
author_sort |
Chatterjee, Subham (author) |
title |
Short-chain n-alkanes in benthic mats and mosses from the Larsemann Hills, East Antarctica |
title_short |
Short-chain n-alkanes in benthic mats and mosses from the Larsemann Hills, East Antarctica |
title_full |
Short-chain n-alkanes in benthic mats and mosses from the Larsemann Hills, East Antarctica |
title_fullStr |
Short-chain n-alkanes in benthic mats and mosses from the Larsemann Hills, East Antarctica |
title_full_unstemmed |
Short-chain n-alkanes in benthic mats and mosses from the Larsemann Hills, East Antarctica |
title_sort |
short-chain n-alkanes in benthic mats and mosses from the larsemann hills, east antarctica |
publishDate |
2023 |
url |
http://resolver.tudelft.nl/uuid:9f8568c0-c53e-40de-9b7a-7167ffcb03ec https://doi.org/10.1016/j.orggeochem.2023.104587 |
long_lat |
ENVELOPE(76.217,76.217,-69.400,-69.400) |
geographic |
Antarctic East Antarctica Larsemann Hills |
geographic_facet |
Antarctic East Antarctica Larsemann Hills |
genre |
Antarc* Antarctic Antarctica East Antarctica |
genre_facet |
Antarc* Antarctic Antarctica East Antarctica |
op_relation |
http://www.scopus.com/inward/record.url?scp=85151753056&partnerID=8YFLogxK Organic Geochemistry--0146-6380--dc006b9d-7dad-4407-a7da-1dd097b752db http://resolver.tudelft.nl/uuid:9f8568c0-c53e-40de-9b7a-7167ffcb03ec https://doi.org/10.1016/j.orggeochem.2023.104587 |
op_rights |
© 2023 Subham Chatterjee, Supriyo Kumar Das, Pravat Kumar Behera, D. Ghosh, Arindam Chakraborty, Priyank Pravin Patel, Minoru Ikehara |
op_doi |
https://doi.org/10.1016/j.orggeochem.2023.104587 |
container_title |
Organic Geochemistry |
container_volume |
179 |
container_start_page |
104587 |
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1790593959149436928 |