Volume 16, Issue 4 (Winter 2025)
3 2025, 16(4): 43-54 |
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gholamian F. The phycoremediation potential of polycladia myrica based on the amount of bioaccumulation of Zn, Cu and Ni metals. and changes in the concentration of photosynthetic pigments. 3 2025; 16 (4) :43-54
URL: http://jmb.ahvaz.iau.ir/article-1-1001-en.html
URL: http://jmb.ahvaz.iau.ir/article-1-1001-en.html
Research Division of Natural Resources, Bushehr Agricultural and Natural Resources Research and Education Center
Abstract: (16 Views)
Appearance color changes in some algae, including the brown macroalgae Polycladia myrica, have been observed in some tidal areas contaminated with urban and industrial effluents. These effluents sometimes contain heavy metals (HMs). To determine the possible role of multi-component HMs in causing color changes in P. myrica algae, in this research, the phycoremediation power and the effect of copper, zinc and nickel ions on the amount of photosynthetic pigments in the algae were investigated in the spring of 2021. The alga was collected from the intertidal zones of Bushehr coast. The concentration range of the desired metal ions was considered from their present concentration in Persian Gulf water to tens of times their current present level, due to the possibility of increasing pollution in the future. The results of the analysis showed that the 30-70% decrease in the amount of algae pigments grown in polluted environments compared to the control algae has led to a change in the algae color from brown to light olive green. On the other hand, this decrease in the amount of pigments has shown a direct relationship with the increase in bioaccumulation of metal ions, that is, the uptake of metal ions has led to oxidative stress in algae cells. This confirms the changes in the algae color due to the toxicity caused by the bioaccumulation of metal ions. Also, the bioaccumulation factor of metal ions showed that P. myrica algae has the ability to uptake 38 times more nickel ions than the control algae. Therefore, this alga can be suggested as a suitable biosorbent with a high phycoremediation power for marine environments contaminated with nickel ions.
Type of Study: Research |
Subject:
Physiology
Received: 2023/12/7 | Accepted: 2025/01/24 | Published: 2025/01/24
Received: 2023/12/7 | Accepted: 2025/01/24 | Published: 2025/01/24
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