Future CO(2)-induced seawater acidification mediates the physiological performance of a green alga Ulva linza in different photoperiods
Photoperiods have an important impact on macroalgae living in the intertidal zone. Ocean acidification also influences the physiology of macroalgae. However, little is known about the interaction between ocean acidification and photoperiod on macroalgae. In this study, a green alga Ulva linza was cu...
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ftpubmed:oai:pubmedcentral.nih.gov:6555391 2023-05-15T17:50:13+02:00 Future CO(2)-induced seawater acidification mediates the physiological performance of a green alga Ulva linza in different photoperiods Yue, Furong Gao, Guang Ma, Jing Wu, Hailong Li, Xinshu Xu, Juntian 2019-06-04 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6555391/ https://doi.org/10.7717/peerj.7048 en eng PeerJ Inc. http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6555391/ http://dx.doi.org/10.7717/peerj.7048 ©2019 Yue et al. http://creativecommons.org/licenses/by/4.0/ This is an open access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/) , which permits unrestricted use, distribution, reproduction and adaptation in any medium and for any purpose provided that it is properly attributed. For attribution, the original author(s), title, publication source (PeerJ) and either DOI or URL of the article must be cited. CC-BY Marine Biology Text 2019 ftpubmed https://doi.org/10.7717/peerj.7048 2019-06-16T00:25:52Z Photoperiods have an important impact on macroalgae living in the intertidal zone. Ocean acidification also influences the physiology of macroalgae. However, little is known about the interaction between ocean acidification and photoperiod on macroalgae. In this study, a green alga Ulva linza was cultured under three different photoperiods (L: D = 8:16, 12:12, 16:8) and two different CO(2) levels (LC, 400 ppm; HC, 1,000 ppm) to investigate their responses. The results showed that relative growth rate of U. linza increased with extended light periods under LC but decreased at HC when exposed to the longest light period of 16 h compared to 12 h. Higher CO(2) levels enhanced the relative growth rate at a L: D of 8:16, had no effect at 12:12 but reduced RGR at 16:8. At LC, the L: D of 16:8 significantly stimulated maximum quantum yield (Yield). Higher CO(2) levels enhanced Yield at L: D of 12:12 and 8:16, had negative effect at 16:8. Non-photochemical quenching (NPQ) increased with increasing light period. High CO(2) levels did not affect respiration rate during shorter light periods but enhanced it at a light period of 16 h. Longer light periods had negative effects on Chl a and Chl b content, and high CO(2) level also inhibited the synthesis of these pigments. Our data demonstrate the interactive effects of CO(2) and photoperiod on the physiological characteristics of the green tide macroalga Ulva linza and indicate that future ocean acidification may hinder the stimulatory effect of long light periods on growth of Ulva species. Text Ocean acidification PubMed Central (PMC) PeerJ 7 e7048 |
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PubMed Central (PMC) |
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Marine Biology |
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Marine Biology Yue, Furong Gao, Guang Ma, Jing Wu, Hailong Li, Xinshu Xu, Juntian Future CO(2)-induced seawater acidification mediates the physiological performance of a green alga Ulva linza in different photoperiods |
topic_facet |
Marine Biology |
description |
Photoperiods have an important impact on macroalgae living in the intertidal zone. Ocean acidification also influences the physiology of macroalgae. However, little is known about the interaction between ocean acidification and photoperiod on macroalgae. In this study, a green alga Ulva linza was cultured under three different photoperiods (L: D = 8:16, 12:12, 16:8) and two different CO(2) levels (LC, 400 ppm; HC, 1,000 ppm) to investigate their responses. The results showed that relative growth rate of U. linza increased with extended light periods under LC but decreased at HC when exposed to the longest light period of 16 h compared to 12 h. Higher CO(2) levels enhanced the relative growth rate at a L: D of 8:16, had no effect at 12:12 but reduced RGR at 16:8. At LC, the L: D of 16:8 significantly stimulated maximum quantum yield (Yield). Higher CO(2) levels enhanced Yield at L: D of 12:12 and 8:16, had negative effect at 16:8. Non-photochemical quenching (NPQ) increased with increasing light period. High CO(2) levels did not affect respiration rate during shorter light periods but enhanced it at a light period of 16 h. Longer light periods had negative effects on Chl a and Chl b content, and high CO(2) level also inhibited the synthesis of these pigments. Our data demonstrate the interactive effects of CO(2) and photoperiod on the physiological characteristics of the green tide macroalga Ulva linza and indicate that future ocean acidification may hinder the stimulatory effect of long light periods on growth of Ulva species. |
format |
Text |
author |
Yue, Furong Gao, Guang Ma, Jing Wu, Hailong Li, Xinshu Xu, Juntian |
author_facet |
Yue, Furong Gao, Guang Ma, Jing Wu, Hailong Li, Xinshu Xu, Juntian |
author_sort |
Yue, Furong |
title |
Future CO(2)-induced seawater acidification mediates the physiological performance of a green alga Ulva linza in different photoperiods |
title_short |
Future CO(2)-induced seawater acidification mediates the physiological performance of a green alga Ulva linza in different photoperiods |
title_full |
Future CO(2)-induced seawater acidification mediates the physiological performance of a green alga Ulva linza in different photoperiods |
title_fullStr |
Future CO(2)-induced seawater acidification mediates the physiological performance of a green alga Ulva linza in different photoperiods |
title_full_unstemmed |
Future CO(2)-induced seawater acidification mediates the physiological performance of a green alga Ulva linza in different photoperiods |
title_sort |
future co(2)-induced seawater acidification mediates the physiological performance of a green alga ulva linza in different photoperiods |
publisher |
PeerJ Inc. |
publishDate |
2019 |
url |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6555391/ https://doi.org/10.7717/peerj.7048 |
genre |
Ocean acidification |
genre_facet |
Ocean acidification |
op_relation |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6555391/ http://dx.doi.org/10.7717/peerj.7048 |
op_rights |
©2019 Yue et al. http://creativecommons.org/licenses/by/4.0/ This is an open access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/) , which permits unrestricted use, distribution, reproduction and adaptation in any medium and for any purpose provided that it is properly attributed. For attribution, the original author(s), title, publication source (PeerJ) and either DOI or URL of the article must be cited. |
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CC-BY |
op_doi |
https://doi.org/10.7717/peerj.7048 |
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e7048 |
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