The Effect of Ultraviolet Radiation on Photosynthetic pigments in Euglena gracilis
The study was conducted during 2017 in the laboratories of the department of Botany at Tishreen University, Lattakia, Syria. The effect of ultraviolet radiation (UV-C and UV-B) for different periods (0.5, 1, 3, 5, 15, 15, 30, 45, 60 minutes) on the photosynthetic pigments of Euglena gracilis (with t...
| Main Authors: | , , |
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| Format: | Article |
| Language: | Arabic |
| Published: |
Tishreen University
2018-10-01
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| Series: | مجلة جامعة تشرين للبحوث والدراسات العلمية، سلسلة العلوم الأساسية |
| Online Access: | http://www.journal.tishreen.edu.sy/index.php/bassnc/article/view/4351 |
| _version_ | 1797421043330056192 |
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| author | Abdulkarim Ayash Issam Mohammad Rana Nassour |
| author_facet | Abdulkarim Ayash Issam Mohammad Rana Nassour |
| author_sort | Abdulkarim Ayash |
| collection | DOAJ |
| description | The study was conducted during 2017 in the laboratories of the department of Botany at Tishreen University, Lattakia, Syria. The effect of ultraviolet radiation (UV-C and UV-B) for different periods (0.5, 1, 3, 5, 15, 15, 30, 45, 60 minutes) on the photosynthetic pigments of Euglena gracilis (with three stages of measurements) was studied. The results showed that chlorophyll pigments were more sensitive to UV-C compared to UV-B. These reductions were correlated with the increase in the exposure time, reaching the lowest value after 60 minutes exposure (97.83, 98.73, 99.18% for chlorophyll a, chlorophyll b and carotenoids when measured after 24 hours respectively).
The polyethylene films protect the chlorophyll pigments against UV radiation. The protection rate was more evident against UV-C reaching 7.78% after 24 hours in the algae exposed for 30 minutes according to the experimental conditions.
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| first_indexed | 2024-03-09T07:10:15Z |
| format | Article |
| id | doaj.art-46d13ff0bb7543fabbf7dd5ecf859aff |
| institution | Directory Open Access Journal |
| issn | 2079-3057 2663-4252 |
| language | Arabic |
| last_indexed | 2024-03-09T07:10:15Z |
| publishDate | 2018-10-01 |
| publisher | Tishreen University |
| record_format | Article |
| series | مجلة جامعة تشرين للبحوث والدراسات العلمية، سلسلة العلوم الأساسية |
| spelling | doaj.art-46d13ff0bb7543fabbf7dd5ecf859aff2023-12-03T09:08:15ZaraTishreen Universityمجلة جامعة تشرين للبحوث والدراسات العلمية، سلسلة العلوم الأساسية2079-30572663-42522018-10-01402The Effect of Ultraviolet Radiation on Photosynthetic pigments in Euglena gracilisAbdulkarim AyashIssam Mohammad Rana NassourThe study was conducted during 2017 in the laboratories of the department of Botany at Tishreen University, Lattakia, Syria. The effect of ultraviolet radiation (UV-C and UV-B) for different periods (0.5, 1, 3, 5, 15, 15, 30, 45, 60 minutes) on the photosynthetic pigments of Euglena gracilis (with three stages of measurements) was studied. The results showed that chlorophyll pigments were more sensitive to UV-C compared to UV-B. These reductions were correlated with the increase in the exposure time, reaching the lowest value after 60 minutes exposure (97.83, 98.73, 99.18% for chlorophyll a, chlorophyll b and carotenoids when measured after 24 hours respectively). The polyethylene films protect the chlorophyll pigments against UV radiation. The protection rate was more evident against UV-C reaching 7.78% after 24 hours in the algae exposed for 30 minutes according to the experimental conditions. http://www.journal.tishreen.edu.sy/index.php/bassnc/article/view/4351 |
| spellingShingle | Abdulkarim Ayash Issam Mohammad Rana Nassour The Effect of Ultraviolet Radiation on Photosynthetic pigments in Euglena gracilis مجلة جامعة تشرين للبحوث والدراسات العلمية، سلسلة العلوم الأساسية |
| title | The Effect of Ultraviolet Radiation on Photosynthetic pigments in Euglena gracilis |
| title_full | The Effect of Ultraviolet Radiation on Photosynthetic pigments in Euglena gracilis |
| title_fullStr | The Effect of Ultraviolet Radiation on Photosynthetic pigments in Euglena gracilis |
| title_full_unstemmed | The Effect of Ultraviolet Radiation on Photosynthetic pigments in Euglena gracilis |
| title_short | The Effect of Ultraviolet Radiation on Photosynthetic pigments in Euglena gracilis |
| title_sort | effect of ultraviolet radiation on photosynthetic pigments in euglena gracilis |
| url | http://www.journal.tishreen.edu.sy/index.php/bassnc/article/view/4351 |
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