Antioxidant response of Messastrum gracile (Chlorophyceae) to light-induced stress
The antioxidant enzymes activities during the Messastrum gracile growth period under two different light intensities were evaluated. The light intensities were designated as: control at 60 µmol photons m-2 s-1 and two cultivations under light-induced stress at 120 µmol photons m-2 s-1, during 24 an...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Universidade Estadual de Maringá
2023-10-01
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| Series: | Acta Scientiarum: Biological Sciences |
| Subjects: | |
| Online Access: | https://ojs.uem.br/ojs/index.php/ActaSciBiolSci/article/view/64996 |
| _version_ | 1797648024607916032 |
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| author | Lúcia Helena Sipaúba Tavares Mayara Cristina Malvas Nicolau Mayara Galatti Tedesque Priscila Lupina Gratão |
| author_facet | Lúcia Helena Sipaúba Tavares Mayara Cristina Malvas Nicolau Mayara Galatti Tedesque Priscila Lupina Gratão |
| author_sort | Lúcia Helena Sipaúba Tavares |
| collection | DOAJ |
| description |
The antioxidant enzymes activities during the Messastrum gracile growth period under two different light intensities were evaluated. The light intensities were designated as: control at 60 µmol photons m-2 s-1 and two cultivations under light-induced stress at 120 µmol photons m-2 s-1, during 24 and 72 hours. The maximum cell density in all treatments was achieved on the 21st growth day with 140x105 cells mL-1 (control), 382x105 cells mL-1 (24 hours) and 236x105 cells mL-1 (72 hours). The antioxidant enzymes activities were more elevated in the control, however, GSH-Px, CAT and SOD activities were higher on the 7th growth day, while GPOX and GR activities were higher on the 28th and 21st growth day, respectively. The microalgae displayed lower MDA content, which indicates low stress levels. In terms of growth, biomass production and chlorophyll-a, the best results occurred under light-induced stress (120 µmol photons m-2 s-1). Light-induced stress decreased antioxidant activity during M. gracile growth, and the results revealed a higher activity for glutathione peroxidase, catalase and superoxide dismutase.
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| first_indexed | 2024-03-11T15:25:07Z |
| format | Article |
| id | doaj.art-5f8d5576e659454aa66f42a89918ef76 |
| institution | Directory Open Access Journal |
| issn | 1679-9283 1807-863X |
| language | English |
| last_indexed | 2024-03-11T15:25:07Z |
| publishDate | 2023-10-01 |
| publisher | Universidade Estadual de Maringá |
| record_format | Article |
| series | Acta Scientiarum: Biological Sciences |
| spelling | doaj.art-5f8d5576e659454aa66f42a89918ef762023-10-27T17:59:35ZengUniversidade Estadual de MaringáActa Scientiarum: Biological Sciences1679-92831807-863X2023-10-0145110.4025/actascibiolsci.v45i1.64996Antioxidant response of Messastrum gracile (Chlorophyceae) to light-induced stressLúcia Helena Sipaúba Tavares0Mayara Cristina Malvas Nicolau1Mayara Galatti Tedesque2Priscila Lupina Gratão3Universidade Estadual PaulistaUniversidade Estadual PaulistaUniversidade Estadual PaulistaUniversidade Estadual Paulista The antioxidant enzymes activities during the Messastrum gracile growth period under two different light intensities were evaluated. The light intensities were designated as: control at 60 µmol photons m-2 s-1 and two cultivations under light-induced stress at 120 µmol photons m-2 s-1, during 24 and 72 hours. The maximum cell density in all treatments was achieved on the 21st growth day with 140x105 cells mL-1 (control), 382x105 cells mL-1 (24 hours) and 236x105 cells mL-1 (72 hours). The antioxidant enzymes activities were more elevated in the control, however, GSH-Px, CAT and SOD activities were higher on the 7th growth day, while GPOX and GR activities were higher on the 28th and 21st growth day, respectively. The microalgae displayed lower MDA content, which indicates low stress levels. In terms of growth, biomass production and chlorophyll-a, the best results occurred under light-induced stress (120 µmol photons m-2 s-1). Light-induced stress decreased antioxidant activity during M. gracile growth, and the results revealed a higher activity for glutathione peroxidase, catalase and superoxide dismutase. https://ojs.uem.br/ojs/index.php/ActaSciBiolSci/article/view/64996cell growth; CHU12; enzymes activities; 120 µmol photons m-2 s-1. |
| spellingShingle | Lúcia Helena Sipaúba Tavares Mayara Cristina Malvas Nicolau Mayara Galatti Tedesque Priscila Lupina Gratão Antioxidant response of Messastrum gracile (Chlorophyceae) to light-induced stress Acta Scientiarum: Biological Sciences cell growth; CHU12; enzymes activities; 120 µmol photons m-2 s-1. |
| title | Antioxidant response of Messastrum gracile (Chlorophyceae) to light-induced stress |
| title_full | Antioxidant response of Messastrum gracile (Chlorophyceae) to light-induced stress |
| title_fullStr | Antioxidant response of Messastrum gracile (Chlorophyceae) to light-induced stress |
| title_full_unstemmed | Antioxidant response of Messastrum gracile (Chlorophyceae) to light-induced stress |
| title_short | Antioxidant response of Messastrum gracile (Chlorophyceae) to light-induced stress |
| title_sort | antioxidant response of messastrum gracile chlorophyceae to light induced stress |
| topic | cell growth; CHU12; enzymes activities; 120 µmol photons m-2 s-1. |
| url | https://ojs.uem.br/ojs/index.php/ActaSciBiolSci/article/view/64996 |
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