DataSheet_2_Photoprotective responses of three intertidal Antarctic macroalgae to short-term temperature stress.docx
The Antarctic Peninsula is experiencing one of the highest warming rates globally. In polar regions, macroalgae thrive under extreme environmental conditions, which could worsen because of future climate change scenarios, including increased ultraviolet exposure, extremely low light availability, an...
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ftfrontimediafig:oai:figshare.com:article/24433786 2024-09-15T17:48:46+00:00 DataSheet_2_Photoprotective responses of three intertidal Antarctic macroalgae to short-term temperature stress.docx Claudio A. Sáez Macarena Troncoso Camilo Navarrete Fernanda Rodríguez-Rojas Nelso Navarro Andrés Trabal Céline Lavergne Diego Pardo Murray T. Brown Iván Gómez Félix L. Figueroa Paula S. M. Celis-Plá 2023-10-25T09:54:01Z https://doi.org/10.3389/fmars.2023.1223853.s002 https://figshare.com/articles/dataset/DataSheet_2_Photoprotective_responses_of_three_intertidal_Antarctic_macroalgae_to_short-term_temperature_stress_docx/24433786 unknown doi:10.3389/fmars.2023.1223853.s002 https://figshare.com/articles/dataset/DataSheet_2_Photoprotective_responses_of_three_intertidal_Antarctic_macroalgae_to_short-term_temperature_stress_docx/24433786 CC BY 4.0 Oceanography Marine Biology Marine Geoscience Biological Oceanography Chemical Oceanography Physical Oceanography Marine Engineering Antarctic seaweeds photoprotective responses carotenoids phenolic compounds mycosporine-like amino acids Dataset 2023 ftfrontimediafig https://doi.org/10.3389/fmars.2023.1223853.s002 2024-08-19T06:20:03Z The Antarctic Peninsula is experiencing one of the highest warming rates globally. In polar regions, macroalgae thrive under extreme environmental conditions, which could worsen because of future climate change scenarios, including increased ultraviolet exposure, extremely low light availability, and fluctuating temperatures, particularly in the intertidal zones. To investigate the potential role of photoprotective and antioxidant mechanisms in response to future increases in sea surface temperatures caused by climate change, we conducted laboratory experiments using three intertidal macroalgae model species: Adenocystis utricularis (Ochrophyta, Phaeophyceae), Pyropia endiviifolia (Rhodophyta, Bangiophyceae), and Monostroma hariotii (Chlorophyta, Ulvophyceae). These algae were collected in Punta Artigas (King George Island, Antarctica) and acclimated at 2°C for 48 h. They were then assessed in laboratory experiments for up to 5 days under two treatments: (1) control conditions at 2°C and (2) elevated tem.perature conditions at 8°C, representing the most negative increment in SSTs estimated by the end of the 21st century. Carbon, nitrogen, pigments (chlorophylls and carotenoids), mycosporine-like amino acids (MAAs), and phenolic compounds were quantified after 3 and 5 days of exposure. For M. hariotii, elevated temperatures led to an increase in the C/N ratio, total antioxidant capacity, and levels of nitrogen, total carotenoids, chlorophyll-a, pigments (chlorophyll-b and violaxanthin), and phenolic compounds. For A. utricularis, elevated temperatures led to elevated C/N ratio and levels of chlorophyll-a and carotenoids (fucoxanthin and β-carotene). For P. endiviifolia, elevated temperatures resulted in elevated levels of carotenoids (lutein and β-carotene), phenolic compounds, and MAAs (porphyra-334, shinorine, and palythine). Thus, our study suggests that increasing water temperatures due to global warming can enhance the photoprotective abilities of three Antarctic intertidal macroalgae (M. hariotii, A. ... Dataset Antarc* Antarctic Antarctic Peninsula Antarctica King George Island Frontiers: Figshare |
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Open Polar |
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Frontiers: Figshare |
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ftfrontimediafig |
language |
unknown |
topic |
Oceanography Marine Biology Marine Geoscience Biological Oceanography Chemical Oceanography Physical Oceanography Marine Engineering Antarctic seaweeds photoprotective responses carotenoids phenolic compounds mycosporine-like amino acids |
spellingShingle |
Oceanography Marine Biology Marine Geoscience Biological Oceanography Chemical Oceanography Physical Oceanography Marine Engineering Antarctic seaweeds photoprotective responses carotenoids phenolic compounds mycosporine-like amino acids Claudio A. Sáez Macarena Troncoso Camilo Navarrete Fernanda Rodríguez-Rojas Nelso Navarro Andrés Trabal Céline Lavergne Diego Pardo Murray T. Brown Iván Gómez Félix L. Figueroa Paula S. M. Celis-Plá DataSheet_2_Photoprotective responses of three intertidal Antarctic macroalgae to short-term temperature stress.docx |
topic_facet |
Oceanography Marine Biology Marine Geoscience Biological Oceanography Chemical Oceanography Physical Oceanography Marine Engineering Antarctic seaweeds photoprotective responses carotenoids phenolic compounds mycosporine-like amino acids |
description |
The Antarctic Peninsula is experiencing one of the highest warming rates globally. In polar regions, macroalgae thrive under extreme environmental conditions, which could worsen because of future climate change scenarios, including increased ultraviolet exposure, extremely low light availability, and fluctuating temperatures, particularly in the intertidal zones. To investigate the potential role of photoprotective and antioxidant mechanisms in response to future increases in sea surface temperatures caused by climate change, we conducted laboratory experiments using three intertidal macroalgae model species: Adenocystis utricularis (Ochrophyta, Phaeophyceae), Pyropia endiviifolia (Rhodophyta, Bangiophyceae), and Monostroma hariotii (Chlorophyta, Ulvophyceae). These algae were collected in Punta Artigas (King George Island, Antarctica) and acclimated at 2°C for 48 h. They were then assessed in laboratory experiments for up to 5 days under two treatments: (1) control conditions at 2°C and (2) elevated tem.perature conditions at 8°C, representing the most negative increment in SSTs estimated by the end of the 21st century. Carbon, nitrogen, pigments (chlorophylls and carotenoids), mycosporine-like amino acids (MAAs), and phenolic compounds were quantified after 3 and 5 days of exposure. For M. hariotii, elevated temperatures led to an increase in the C/N ratio, total antioxidant capacity, and levels of nitrogen, total carotenoids, chlorophyll-a, pigments (chlorophyll-b and violaxanthin), and phenolic compounds. For A. utricularis, elevated temperatures led to elevated C/N ratio and levels of chlorophyll-a and carotenoids (fucoxanthin and β-carotene). For P. endiviifolia, elevated temperatures resulted in elevated levels of carotenoids (lutein and β-carotene), phenolic compounds, and MAAs (porphyra-334, shinorine, and palythine). Thus, our study suggests that increasing water temperatures due to global warming can enhance the photoprotective abilities of three Antarctic intertidal macroalgae (M. hariotii, A. ... |
format |
Dataset |
author |
Claudio A. Sáez Macarena Troncoso Camilo Navarrete Fernanda Rodríguez-Rojas Nelso Navarro Andrés Trabal Céline Lavergne Diego Pardo Murray T. Brown Iván Gómez Félix L. Figueroa Paula S. M. Celis-Plá |
author_facet |
Claudio A. Sáez Macarena Troncoso Camilo Navarrete Fernanda Rodríguez-Rojas Nelso Navarro Andrés Trabal Céline Lavergne Diego Pardo Murray T. Brown Iván Gómez Félix L. Figueroa Paula S. M. Celis-Plá |
author_sort |
Claudio A. Sáez |
title |
DataSheet_2_Photoprotective responses of three intertidal Antarctic macroalgae to short-term temperature stress.docx |
title_short |
DataSheet_2_Photoprotective responses of three intertidal Antarctic macroalgae to short-term temperature stress.docx |
title_full |
DataSheet_2_Photoprotective responses of three intertidal Antarctic macroalgae to short-term temperature stress.docx |
title_fullStr |
DataSheet_2_Photoprotective responses of three intertidal Antarctic macroalgae to short-term temperature stress.docx |
title_full_unstemmed |
DataSheet_2_Photoprotective responses of three intertidal Antarctic macroalgae to short-term temperature stress.docx |
title_sort |
datasheet_2_photoprotective responses of three intertidal antarctic macroalgae to short-term temperature stress.docx |
publishDate |
2023 |
url |
https://doi.org/10.3389/fmars.2023.1223853.s002 https://figshare.com/articles/dataset/DataSheet_2_Photoprotective_responses_of_three_intertidal_Antarctic_macroalgae_to_short-term_temperature_stress_docx/24433786 |
genre |
Antarc* Antarctic Antarctic Peninsula Antarctica King George Island |
genre_facet |
Antarc* Antarctic Antarctic Peninsula Antarctica King George Island |
op_relation |
doi:10.3389/fmars.2023.1223853.s002 https://figshare.com/articles/dataset/DataSheet_2_Photoprotective_responses_of_three_intertidal_Antarctic_macroalgae_to_short-term_temperature_stress_docx/24433786 |
op_rights |
CC BY 4.0 |
op_doi |
https://doi.org/10.3389/fmars.2023.1223853.s002 |
_version_ |
1810290290906365952 |