Volume 9, Issue 1 (Summer 2019)
J. Aqua. Eco 2019, 9(1): 128-135 |
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Fazelian N, Movafeghi A, Yousefzadi M, Rahimzadeh M, Zarei M. Effect of CuO nanoparticle on the content of protein and phenolic compounds of Nannochloropsis oculata. J. Aqua. Eco 2019; 9 (1) :128-135
URL: http://jae.hormozgan.ac.ir/article-1-753-en.html
URL: http://jae.hormozgan.ac.ir/article-1-753-en.html
Abstract: (2911 Views)
In this study, the effect of different concentrations of CuO nanoparticles (0, 5, 10, 50, 100, 200 mg/L) was investigated on Nannochloropsis oculata. The results showed that the viability percentage and Chlorophyll a content was significantly decreased in the algal cells treated with CuO nanoparticles (CuO-NPs) compared to the control. The content of protein remarkable was decreased in response to CuO-NPs, while the level of phenolic compounds significantly was increased in comparison to the control. The activity of polyphenol oxidase (PPO) enzyme was raised in N. oculata cells with the increase of CuO-NPs concentration, which was accordance with the results of phenolic compounds. Also, the algal cell aggregation and the cell membrane damage were observed in the images of scanning electron microscopy (SEM). Increase of phenolic compounds and PPO activity as well as the cell aggregation probably were defense methods in this microalga in response to the stress from NPs.
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This work is licensed under a Creative Commons — Attribution-NonCommercial 4.0 International (CC BY-NC 4.0)