The Role of Polyethylene Films in Reducing the Harmful Effects of UV Radiation on the Productivity of Euglena Gracilis

International Journal of Agriculture & Environmental Science
© 2018 by SSRG - IJAES Journal
Volume 5 Issue 2
Year of Publication : 2018
Authors : Rana Nassour, Abdulkarim Ayash, Issam Mohamad
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Rana Nassour, Abdulkarim Ayash, Issam Mohamad, " The Role of Polyethylene Films in Reducing the Harmful Effects of UV Radiation on the Productivity of Euglena Gracilis," SSRG International Journal of Agriculture & Environmental Science, vol. 5,  no. 2, pp. 45-49, 2018. Crossref, https://doi.org/10.14445/23942568/IJAES-V5I2P106

Abstract:

The study was achieved during 2017 in the laboratories of the department of Botany at Tishreen University, Lattakia, Syria. The effect of ultraviolet radiation (UV-C, UV-B) on the carbohydrate content and the oxygen evolution of Euglena gracilis was studied for different periods (0, 5, 30 minutes). The results show that the carbohydrate content and the oxygen evolution as indicators of photosynthesis and productivity were more sensitive to UV-C compared to UV-B. The decrease in productivity was correlated with the exposure time, reaching the lowest value after 30 minutes (57.23% for carbohydrate content and 36.25% for oxygen evolution). On the other hand, the usage of polyethylene films alleviates the negative effect of UV radiation. This alleviation percentage was more evident against UV-C (8.07% for carbohydrate content and 20.91% for oxygen evolution after exposing the algae to UV radiation + polyethylene films for 30 minutes).

Keywords:

UV-C, UV-B, Polyethylene films, Euglena gracilis, Carbohydrate, Oxygen evolution.

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