A novel in situ system to evaluate the effect of high CO2 on photosynthesis and biochemistry of seaweeds
Previous studies of the impact of increased CO2 on macroalgae have mainly been done in laboratories or mesocosm systems, placing organisms under both artificial light and seawater conditions. In this study, macroalgae were incubated in situ in UV-transparent cylinders under conditions similar to the...
Published in: | Aquatic Biology |
---|---|
Main Authors: | , , , , , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
2014
|
Subjects: | |
Online Access: | http://repositorio.furg.br/handle/1/5839 https://doi.org/10.3354/ab00594 |
id |
ftunivfurg:oai:repositorio.furg.br:1/5839 |
---|---|
record_format |
openpolar |
spelling |
ftunivfurg:oai:repositorio.furg.br:1/5839 2023-11-12T04:23:49+01:00 A novel in situ system to evaluate the effect of high CO2 on photosynthesis and biochemistry of seaweeds Korbee, Nathalie Navarro, Nelso Patrício García-Sánchez, Marta Celis-Plà, Paula Quintano, Endika Copertino, Margareth da Silva Pedersen, Are Costa, Rodrigo Mariath Varela da Mangaiyarkarasi, Nartarajan Perez-Ruzafa, Angel Figueroa, Felix Lopez Martínez, Brezo 2014 application/pdf http://repositorio.furg.br/handle/1/5839 https://doi.org/10.3354/ab00594 eng eng KORBEE, Nathalie et al. A novel in situ system to evaluate the effect of high CO2 on photosynthesis and biochemistry of seaweeds. Aquat Biology, v.22, p.245–259, 2014. Disponível em: < http://www.int-res.com/articles/ab2014/22/b022p245.pdf >. Acesso em 20 Jan 2016. ISSN 1864-7782 http://repositorio.furg.br/handle/1/5839 doi:10.3354/ab00594 open access Macroalgae Non-photochemical quenching Ocean acidification Photoprotection Photosynthesis article 2014 ftunivfurg https://doi.org/10.3354/ab00594 2023-10-24T21:02:57Z Previous studies of the impact of increased CO2 on macroalgae have mainly been done in laboratories or mesocosm systems, placing organisms under both artificial light and seawater conditions. In this study, macroalgae were incubated in situ in UV-transparent cylinders under conditions similar to the external environment. This system was tested in a short-term study (5.5 h incubation) on the effect of 2 partial pressures of CO2 (pCO2): air (ambient CO2) and the pCO2 predicted by the end of the 21st century (700 μatm, high CO2), on photosynthesis, photosynthetic pigments and photoprotection in calcifying (Ellisolandia elongata and Padina pavonica) and non-calcifying (Cystoseira tamariscifolia) macroalgae. The calcifying P. pavonica showed higher net photosynthesis under high CO2 than under ambient CO2 conditions, whereas the opposite occurred in C. tamariscifolia. Both brown algae (P. pavonica and C. tamariscifolia) showed activation of non-photochemical quenching mechanisms under high CO2 conditions. However, in P. pavonica the phenol content was reduced after CO2 enrichment. In contrast to phenols, in E. elongata other photoprotectors such as zeaxanthin and palythine (mycosporine-like amino acid) tended to increase in the high CO2 treatment. The different responses of these species to elevated pCO2 may be due to anatomical and physiological differences and could represent a shift in their relative dominance as key species in the face of ocean acidification (OA). More in situ studies could be carried out to evaluate how macroalgae will respond to increases in pCO2 in a future OA scenario. The in situ incubator system proposed in this work may contribute towards increasing this knowledge. Article in Journal/Newspaper Ocean acidification RI FURG (Repositório da Universidade Federal do Rio Grande) Aquatic Biology 22 245 259 |
institution |
Open Polar |
collection |
RI FURG (Repositório da Universidade Federal do Rio Grande) |
op_collection_id |
ftunivfurg |
language |
English |
topic |
Macroalgae Non-photochemical quenching Ocean acidification Photoprotection Photosynthesis |
spellingShingle |
Macroalgae Non-photochemical quenching Ocean acidification Photoprotection Photosynthesis Korbee, Nathalie Navarro, Nelso Patrício García-Sánchez, Marta Celis-Plà, Paula Quintano, Endika Copertino, Margareth da Silva Pedersen, Are Costa, Rodrigo Mariath Varela da Mangaiyarkarasi, Nartarajan Perez-Ruzafa, Angel Figueroa, Felix Lopez Martínez, Brezo A novel in situ system to evaluate the effect of high CO2 on photosynthesis and biochemistry of seaweeds |
topic_facet |
Macroalgae Non-photochemical quenching Ocean acidification Photoprotection Photosynthesis |
description |
Previous studies of the impact of increased CO2 on macroalgae have mainly been done in laboratories or mesocosm systems, placing organisms under both artificial light and seawater conditions. In this study, macroalgae were incubated in situ in UV-transparent cylinders under conditions similar to the external environment. This system was tested in a short-term study (5.5 h incubation) on the effect of 2 partial pressures of CO2 (pCO2): air (ambient CO2) and the pCO2 predicted by the end of the 21st century (700 μatm, high CO2), on photosynthesis, photosynthetic pigments and photoprotection in calcifying (Ellisolandia elongata and Padina pavonica) and non-calcifying (Cystoseira tamariscifolia) macroalgae. The calcifying P. pavonica showed higher net photosynthesis under high CO2 than under ambient CO2 conditions, whereas the opposite occurred in C. tamariscifolia. Both brown algae (P. pavonica and C. tamariscifolia) showed activation of non-photochemical quenching mechanisms under high CO2 conditions. However, in P. pavonica the phenol content was reduced after CO2 enrichment. In contrast to phenols, in E. elongata other photoprotectors such as zeaxanthin and palythine (mycosporine-like amino acid) tended to increase in the high CO2 treatment. The different responses of these species to elevated pCO2 may be due to anatomical and physiological differences and could represent a shift in their relative dominance as key species in the face of ocean acidification (OA). More in situ studies could be carried out to evaluate how macroalgae will respond to increases in pCO2 in a future OA scenario. The in situ incubator system proposed in this work may contribute towards increasing this knowledge. |
format |
Article in Journal/Newspaper |
author |
Korbee, Nathalie Navarro, Nelso Patrício García-Sánchez, Marta Celis-Plà, Paula Quintano, Endika Copertino, Margareth da Silva Pedersen, Are Costa, Rodrigo Mariath Varela da Mangaiyarkarasi, Nartarajan Perez-Ruzafa, Angel Figueroa, Felix Lopez Martínez, Brezo |
author_facet |
Korbee, Nathalie Navarro, Nelso Patrício García-Sánchez, Marta Celis-Plà, Paula Quintano, Endika Copertino, Margareth da Silva Pedersen, Are Costa, Rodrigo Mariath Varela da Mangaiyarkarasi, Nartarajan Perez-Ruzafa, Angel Figueroa, Felix Lopez Martínez, Brezo |
author_sort |
Korbee, Nathalie |
title |
A novel in situ system to evaluate the effect of high CO2 on photosynthesis and biochemistry of seaweeds |
title_short |
A novel in situ system to evaluate the effect of high CO2 on photosynthesis and biochemistry of seaweeds |
title_full |
A novel in situ system to evaluate the effect of high CO2 on photosynthesis and biochemistry of seaweeds |
title_fullStr |
A novel in situ system to evaluate the effect of high CO2 on photosynthesis and biochemistry of seaweeds |
title_full_unstemmed |
A novel in situ system to evaluate the effect of high CO2 on photosynthesis and biochemistry of seaweeds |
title_sort |
novel in situ system to evaluate the effect of high co2 on photosynthesis and biochemistry of seaweeds |
publishDate |
2014 |
url |
http://repositorio.furg.br/handle/1/5839 https://doi.org/10.3354/ab00594 |
genre |
Ocean acidification |
genre_facet |
Ocean acidification |
op_relation |
KORBEE, Nathalie et al. A novel in situ system to evaluate the effect of high CO2 on photosynthesis and biochemistry of seaweeds. Aquat Biology, v.22, p.245–259, 2014. Disponível em: < http://www.int-res.com/articles/ab2014/22/b022p245.pdf >. Acesso em 20 Jan 2016. ISSN 1864-7782 http://repositorio.furg.br/handle/1/5839 doi:10.3354/ab00594 |
op_rights |
open access |
op_doi |
https://doi.org/10.3354/ab00594 |
container_title |
Aquatic Biology |
container_volume |
22 |
container_start_page |
245 |
op_container_end_page |
259 |
_version_ |
1782338478148681728 |