Effect of temperature and increased concentration of CO2 on growth and photosynthetic activity of polar alga Trebouxia sp.
Trebouxia sp., a lichen symbiotic alga, was isolated from lichen Usnea antarctica collected at James Ross Island, Antarctica. After isolation, the alga was cultivated on Bold‘s Basal Medium (BBM-agar) with addition of nitrogen for 12 days. Growth of alga and its photosynthetic properties were studie...
Published in: | Czech Polar Reports |
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Masaryk University Press
2014
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Online Access: | http://dx.doi.org/10.5817/cpr2014-1-5 https://journals.muni.cz/CPR/article/viewFile/12845/11179 |
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crmasarykunivpr:10.5817/cpr2014-1-5 2024-06-23T07:46:44+00:00 Effect of temperature and increased concentration of CO2 on growth and photosynthetic activity of polar alga Trebouxia sp. Sehnal, Luděk Váczi, Peter Barták, Miloš 2014 http://dx.doi.org/10.5817/cpr2014-1-5 https://journals.muni.cz/CPR/article/viewFile/12845/11179 unknown Masaryk University Press http://creativecommons.org/licenses/by-nc-nd/4.0 Czech Polar Reports volume 4, issue 1, page 47-56 ISSN 1805-0697 1805-0689 journal-article 2014 crmasarykunivpr https://doi.org/10.5817/cpr2014-1-5 2024-06-13T04:16:15Z Trebouxia sp., a lichen symbiotic alga, was isolated from lichen Usnea antarctica collected at James Ross Island, Antarctica. After isolation, the alga was cultivated on Bold‘s Basal Medium (BBM-agar) with addition of nitrogen for 12 days. Growth of alga and its photosynthetic properties were studied in relation to increased concentration of CO2 (850±50 ppm) and two cultivation temperature (8 and 12°C). Physiological status of algae was evaluated by chlorophyll fluorescence parameters. Simultaneously, content of pigments and changes in biomass were evaluated during cultivation period. Evaluation of physiological state of Trebouxia sp. was carried out after the end of experiment. Results of chlorophyll fluorescence induction parameters and content of pigments showed that the highest efficiency of primary processes of photosynthesis was found at the treatment with elevated concentration of CO2 and temperature 12°C. In this treatment, potential quantum yield of photochemical processes in photosystem II (FV/FM) was 0.44 and content of Chl a was 5.14 µg ml-1. In contrast, the lowest efficiency of primary processes was found at the treatment with addition of CO2 and temperature 8°C, where value of FV/FM reached 0.37 and content of Chl a was 3.71 µg ml-1. Article in Journal/Newspaper Antarc* Antarctica James Ross Island Ross Island Usnea antarctica Munipress - Masaryk University Press Ross Island Czech Polar Reports 4 1 47 56 |
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Open Polar |
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Munipress - Masaryk University Press |
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crmasarykunivpr |
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unknown |
description |
Trebouxia sp., a lichen symbiotic alga, was isolated from lichen Usnea antarctica collected at James Ross Island, Antarctica. After isolation, the alga was cultivated on Bold‘s Basal Medium (BBM-agar) with addition of nitrogen for 12 days. Growth of alga and its photosynthetic properties were studied in relation to increased concentration of CO2 (850±50 ppm) and two cultivation temperature (8 and 12°C). Physiological status of algae was evaluated by chlorophyll fluorescence parameters. Simultaneously, content of pigments and changes in biomass were evaluated during cultivation period. Evaluation of physiological state of Trebouxia sp. was carried out after the end of experiment. Results of chlorophyll fluorescence induction parameters and content of pigments showed that the highest efficiency of primary processes of photosynthesis was found at the treatment with elevated concentration of CO2 and temperature 12°C. In this treatment, potential quantum yield of photochemical processes in photosystem II (FV/FM) was 0.44 and content of Chl a was 5.14 µg ml-1. In contrast, the lowest efficiency of primary processes was found at the treatment with addition of CO2 and temperature 8°C, where value of FV/FM reached 0.37 and content of Chl a was 3.71 µg ml-1. |
format |
Article in Journal/Newspaper |
author |
Sehnal, Luděk Váczi, Peter Barták, Miloš |
spellingShingle |
Sehnal, Luděk Váczi, Peter Barták, Miloš Effect of temperature and increased concentration of CO2 on growth and photosynthetic activity of polar alga Trebouxia sp. |
author_facet |
Sehnal, Luděk Váczi, Peter Barták, Miloš |
author_sort |
Sehnal, Luděk |
title |
Effect of temperature and increased concentration of CO2 on growth and photosynthetic activity of polar alga Trebouxia sp. |
title_short |
Effect of temperature and increased concentration of CO2 on growth and photosynthetic activity of polar alga Trebouxia sp. |
title_full |
Effect of temperature and increased concentration of CO2 on growth and photosynthetic activity of polar alga Trebouxia sp. |
title_fullStr |
Effect of temperature and increased concentration of CO2 on growth and photosynthetic activity of polar alga Trebouxia sp. |
title_full_unstemmed |
Effect of temperature and increased concentration of CO2 on growth and photosynthetic activity of polar alga Trebouxia sp. |
title_sort |
effect of temperature and increased concentration of co2 on growth and photosynthetic activity of polar alga trebouxia sp. |
publisher |
Masaryk University Press |
publishDate |
2014 |
url |
http://dx.doi.org/10.5817/cpr2014-1-5 https://journals.muni.cz/CPR/article/viewFile/12845/11179 |
geographic |
Ross Island |
geographic_facet |
Ross Island |
genre |
Antarc* Antarctica James Ross Island Ross Island Usnea antarctica |
genre_facet |
Antarc* Antarctica James Ross Island Ross Island Usnea antarctica |
op_source |
Czech Polar Reports volume 4, issue 1, page 47-56 ISSN 1805-0697 1805-0689 |
op_rights |
http://creativecommons.org/licenses/by-nc-nd/4.0 |
op_doi |
https://doi.org/10.5817/cpr2014-1-5 |
container_title |
Czech Polar Reports |
container_volume |
4 |
container_issue |
1 |
container_start_page |
47 |
op_container_end_page |
56 |
_version_ |
1802647846860619776 |