Table_4_Photophysiological response of diatoms in surface sediments to light exposure: A laboratory experiment on a diatom community in sediments from the Chukchi Sea.xlsx
Diatoms form dense blooms in the Pacific Arctic region from spring to summer, supporting the unique benthic-pelagic coupling ecosystems. Although the Arctic has a severe light-limited season from autumn to winter, diatoms can proliferate in spring when sufficient light becomes available for photosyn...
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Online Access: | https://doi.org/10.3389/fmars.2022.998711.s004 https://figshare.com/articles/dataset/Table_4_Photophysiological_response_of_diatoms_in_surface_sediments_to_light_exposure_A_laboratory_experiment_on_a_diatom_community_in_sediments_from_the_Chukchi_Sea_xlsx/21116134 |
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ftfrontimediafig:oai:figshare.com:article/21116134 2023-05-15T14:48:25+02:00 Table_4_Photophysiological response of diatoms in surface sediments to light exposure: A laboratory experiment on a diatom community in sediments from the Chukchi Sea.xlsx Yuri Fukai Kohei Matsuno Amane Fujiwara Koji Suzuki 2022-09-15T06:22:46Z https://doi.org/10.3389/fmars.2022.998711.s004 https://figshare.com/articles/dataset/Table_4_Photophysiological_response_of_diatoms_in_surface_sediments_to_light_exposure_A_laboratory_experiment_on_a_diatom_community_in_sediments_from_the_Chukchi_Sea_xlsx/21116134 unknown doi:10.3389/fmars.2022.998711.s004 https://figshare.com/articles/dataset/Table_4_Photophysiological_response_of_diatoms_in_surface_sediments_to_light_exposure_A_laboratory_experiment_on_a_diatom_community_in_sediments_from_the_Chukchi_Sea_xlsx/21116134 CC BY 4.0 CC-BY Oceanography Marine Biology Marine Geoscience Biological Oceanography Chemical Oceanography Physical Oceanography Marine Engineering diatom diatom resting stages photophysiology sediment Pacific Arctic shelves Chukchi Sea Dataset 2022 ftfrontimediafig https://doi.org/10.3389/fmars.2022.998711.s004 2022-09-21T23:11:05Z Diatoms form dense blooms in the Pacific Arctic region from spring to summer, supporting the unique benthic-pelagic coupling ecosystems. Although the Arctic has a severe light-limited season from autumn to winter, diatoms can proliferate in spring when sufficient light becomes available for photosynthesis. One of the crucial strategies for diatoms to survive in unfavorable growing conditions is to form resting stages. Because of enhanced primary and export production in the Pacific Arctic shelves, many viable diatom resting stages can be detected in the surface sediments. However, little is known about the photophysiological response of viable diatom cells, including resting stages, in sediments to light availability. We conducted a laboratory experiment investigating the photophysiological capabilities of the diatom cells containing resting stages using surface sediments from the Chukchi Sea shelf. As a result, diatoms grew dramatically after light exposure, and Chaetoceros socialis complex highly contributed to the enhanced diatom abundance. Their photophysiological changes were also evident from the maximum quantum efficiency (F v /F m ) of photochemistry in photosystem II, 13 C-based photosynthetic-energy (PE) parameters, diadinoxanthin (DD)-diatoxanthin (DT) pool size, and the de-epoxidation state (DES) of DD. Even after the excess light exposure suppressed the photosynthetic activity in the microalgal cells, the diatoms recovered quickly, indicating the high photophysiological plasticity to dynamic light changes. Therefore, our results suggest that diatoms in surface sediments have a high seeding potential for blooms in the Pacific Arctic shelf region. Dataset Arctic Chukchi Chukchi Sea Pacific Arctic Frontiers: Figshare Arctic Chukchi Sea Pacific |
institution |
Open Polar |
collection |
Frontiers: Figshare |
op_collection_id |
ftfrontimediafig |
language |
unknown |
topic |
Oceanography Marine Biology Marine Geoscience Biological Oceanography Chemical Oceanography Physical Oceanography Marine Engineering diatom diatom resting stages photophysiology sediment Pacific Arctic shelves Chukchi Sea |
spellingShingle |
Oceanography Marine Biology Marine Geoscience Biological Oceanography Chemical Oceanography Physical Oceanography Marine Engineering diatom diatom resting stages photophysiology sediment Pacific Arctic shelves Chukchi Sea Yuri Fukai Kohei Matsuno Amane Fujiwara Koji Suzuki Table_4_Photophysiological response of diatoms in surface sediments to light exposure: A laboratory experiment on a diatom community in sediments from the Chukchi Sea.xlsx |
topic_facet |
Oceanography Marine Biology Marine Geoscience Biological Oceanography Chemical Oceanography Physical Oceanography Marine Engineering diatom diatom resting stages photophysiology sediment Pacific Arctic shelves Chukchi Sea |
description |
Diatoms form dense blooms in the Pacific Arctic region from spring to summer, supporting the unique benthic-pelagic coupling ecosystems. Although the Arctic has a severe light-limited season from autumn to winter, diatoms can proliferate in spring when sufficient light becomes available for photosynthesis. One of the crucial strategies for diatoms to survive in unfavorable growing conditions is to form resting stages. Because of enhanced primary and export production in the Pacific Arctic shelves, many viable diatom resting stages can be detected in the surface sediments. However, little is known about the photophysiological response of viable diatom cells, including resting stages, in sediments to light availability. We conducted a laboratory experiment investigating the photophysiological capabilities of the diatom cells containing resting stages using surface sediments from the Chukchi Sea shelf. As a result, diatoms grew dramatically after light exposure, and Chaetoceros socialis complex highly contributed to the enhanced diatom abundance. Their photophysiological changes were also evident from the maximum quantum efficiency (F v /F m ) of photochemistry in photosystem II, 13 C-based photosynthetic-energy (PE) parameters, diadinoxanthin (DD)-diatoxanthin (DT) pool size, and the de-epoxidation state (DES) of DD. Even after the excess light exposure suppressed the photosynthetic activity in the microalgal cells, the diatoms recovered quickly, indicating the high photophysiological plasticity to dynamic light changes. Therefore, our results suggest that diatoms in surface sediments have a high seeding potential for blooms in the Pacific Arctic shelf region. |
format |
Dataset |
author |
Yuri Fukai Kohei Matsuno Amane Fujiwara Koji Suzuki |
author_facet |
Yuri Fukai Kohei Matsuno Amane Fujiwara Koji Suzuki |
author_sort |
Yuri Fukai |
title |
Table_4_Photophysiological response of diatoms in surface sediments to light exposure: A laboratory experiment on a diatom community in sediments from the Chukchi Sea.xlsx |
title_short |
Table_4_Photophysiological response of diatoms in surface sediments to light exposure: A laboratory experiment on a diatom community in sediments from the Chukchi Sea.xlsx |
title_full |
Table_4_Photophysiological response of diatoms in surface sediments to light exposure: A laboratory experiment on a diatom community in sediments from the Chukchi Sea.xlsx |
title_fullStr |
Table_4_Photophysiological response of diatoms in surface sediments to light exposure: A laboratory experiment on a diatom community in sediments from the Chukchi Sea.xlsx |
title_full_unstemmed |
Table_4_Photophysiological response of diatoms in surface sediments to light exposure: A laboratory experiment on a diatom community in sediments from the Chukchi Sea.xlsx |
title_sort |
table_4_photophysiological response of diatoms in surface sediments to light exposure: a laboratory experiment on a diatom community in sediments from the chukchi sea.xlsx |
publishDate |
2022 |
url |
https://doi.org/10.3389/fmars.2022.998711.s004 https://figshare.com/articles/dataset/Table_4_Photophysiological_response_of_diatoms_in_surface_sediments_to_light_exposure_A_laboratory_experiment_on_a_diatom_community_in_sediments_from_the_Chukchi_Sea_xlsx/21116134 |
geographic |
Arctic Chukchi Sea Pacific |
geographic_facet |
Arctic Chukchi Sea Pacific |
genre |
Arctic Chukchi Chukchi Sea Pacific Arctic |
genre_facet |
Arctic Chukchi Chukchi Sea Pacific Arctic |
op_relation |
doi:10.3389/fmars.2022.998711.s004 https://figshare.com/articles/dataset/Table_4_Photophysiological_response_of_diatoms_in_surface_sediments_to_light_exposure_A_laboratory_experiment_on_a_diatom_community_in_sediments_from_the_Chukchi_Sea_xlsx/21116134 |
op_rights |
CC BY 4.0 |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.3389/fmars.2022.998711.s004 |
_version_ |
1766319485156851712 |