Phycoremediation potential, physiological, and biochemical response of Amphora subtropica and Dunaliella sp. to nickel pollution

Moussa, Ines Dahmen‐Ben; Athmouni, Khaled; Chtourou, Haifa; Ayadi, Habib; Sayadi, Sami; Dhouib, Abdelhafidh

doi:10.1007/s10811-017-1315-z

Cited by 18 publications

(5 citation statements)

References 47 publications

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“…According to the literature, the carotenoid content was also enhanced in C. vulgaris cells after treatment with some nanoparticles such as ZnO and Fe 2 O 3 during heavy metals stress 31 , 32 . Moreover, it was shown that despite Ni negatively affects on chlorophyll contents, it increases carotenoids content in Dunaliella sp 33 . An increase in the amount of some antioxidant compounds, including carotenoids, is one of the events that can occur following undesirable environmental conditions, such as the existence of pollutants in the environment 34 .…”

Section: Resultsmentioning

confidence: 99%

“…Increased POD activity has been shown in different microalgae such as C. vulgaris, S. obliquus and Dunaliella sp. under exposures to Cu, Cd, Ni and Pb 15 , 33 , 37 . In contrast to such induction of antioxidant enzymes activities, their inhibition following the treatment of living organisms with high concentrations of contaminants has been confirmed in other studies 40 .…”

Section: Resultsmentioning

confidence: 99%

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Toxicity of ZnFe-SO4 layered double hydroxide in Tetradesmus obliquus and evaluation of some physiological responses of the microalgae for stress management

Torbati,

Yekan Motlagh,

Khataee

2024

Sci Rep

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Layered double hydroxides (LDHs), regarding their physical and structural properties, have different and wide applications industry and their increasing use may raise ecological and human health concerns. However, the potential toxicity mechanisms of LDHs in different organisms are still unclear. In the present work, after synthesizing of ZnFe-SO4 LDH and studying of its characterization by XRD, FT-IR, SEM, EDX-mapping, TEM and Raman, its toxicity in Tetradesmus obliquus was evaluated. According to experimental results, the growth of the algae and content of photosynthetic pigments were significantly decreased after treatment with 100 mg/L of ZnFe-SO4 LDH. The high dose exposure to the LDH also inhibited the activity of SOD and POD enzymes, possibly due to the LDH- catalyzed reactive oxygen species production. In addition, lipid peroxidation and the content of phenolic compounds, as no-enzymatic antioxidants were increased by enhancement of the LDH concentration. The rise of phenol, flavonoids and MDA contents could be regarded as some manifestations and responses to the toxic effects of the contaminant in the algae cells. The results provided a better understanding of the undesirable effects and toxicity of LDHs in aquatic organisms.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Toxicity of ZnFe-SO4 layered double hydroxide in Tetradesmus obliquus and evaluation of some physiological responses of the microalgae for stress management

Torbati,

Yekan Motlagh,

Khataee

2024

Sci Rep

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“…Element concentrations high enough to cause severe stress results in antioxidants depletion (Elbaz et al 2010;Piotrowska-Niczyporuk et al 2015;Nowicka et al 2016aNowicka et al , 2020Cheng et al 2016;Moussa et al 2018;Lu et al 2021;Ajitha et al 2021).…”

Section: Tablementioning

confidence: 99%

Heavy metal–induced stress in eukaryotic algae—mechanisms of heavy metal toxicity and tolerance with particular emphasis on oxidative stress in exposed cells and the role of antioxidant response

Nowicka

2022

Environ Sci Pollut Res

137

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Heavy metals is a collective term describing metals and metalloids with a density higher than 5 g/cm3. Some of them are essential micronutrients; others do not play a positive role in living organisms. Increased anthropogenic emissions of heavy metal ions pose a serious threat to water and land ecosystems. The mechanism of heavy metal toxicity predominantly depends on (1) their high affinity to thiol groups, (2) spatial similarity to biochemical functional groups, (3) competition with essential metal cations, (4) and induction of oxidative stress. The antioxidant response is therefore crucial for providing tolerance to heavy metal-induced stress. This review aims to summarize the knowledge of heavy metal toxicity, oxidative stress and antioxidant response in eukaryotic algae. Types of ROS, their formation sites in photosynthetic cells, and the damage they cause to the cellular components are described at the beginning. Furthermore, heavy metals are characterized in more detail, including their chemical properties, roles they play in living cells, sources of contamination, biochemical mechanisms of toxicity, and stress symptoms. The following subchapters contain the description of low-molecular-weight antioxidants and ROS-detoxifying enzymes, their properties, cellular localization, and the occurrence in algae belonging to different clades, as well as the summary of the results of the experiments concerning antioxidant response in heavy metal-treated eukaryotic algae. Other mechanisms providing tolerance to metal ions are briefly outlined at the end.

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“…Enzyme extraction was conducted by modified method of Moussa et al (2017). Algae was centrifuged at 4500 g for 5 min, then the pellet was added with phosphate-buffered saline and centrifuged at 4500 rpm for 5 min.…”

Section: Enzyme Extractionmentioning

confidence: 99%

Integrated assessment of biomarker responses in algae Chlorella sorokiniana exposed to copper and cadmium

rahayu

Nugroho

2020

Biodiversitas

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Abstract. Rahayu TH, Nugroho AP. 2020. Integrated assessment of biomarker responses in algae Chlorella sorokiniana exposed to copper and cadmium. Biodiversitas 21: 3569-3575. Microalgae Chorella as a major producer in aquatic ecosystems has high probability ofth being exposed to metal pollutants. Metal exposure to algae can induce the formation of reactive oxygen species (ROS), leading to oxidative stress states. ROS trigger the responses of biomarkers of antioxidative enzymes, including superoxide dismutase (SOD), catalase (CAT), and ascorbate peroxidase (APX). This study aims to develop an integrated biomarker response index and star plot for interpretation of the antioxidative enzyme responses in Chlorella sorokiniana. The microalgae was exposed to three concentrations of copper (Cu) and cadmium (Cd) for 48 h, respectively. The results showed that exposure to Cu and Cd caused an increase of protein content and activities of SOD and APX. Analysis of integrated biomarker response (IBR) showed a decrease in the value of IBR along with an increase in cadmium concentration but no similar pattern found in copper. The multiple factor analysis (MFA) approach showed that exposure to Cu 0.3 μmol L-1 for 48 h had high score of protein content and SOD activity in the first dimension. For the second dimension, exposure to Cu 1.6 µmol L-1 for 6 h had high score of APX and SOD activity.

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Phycoremediation potential, physiological, and biochemical response of Amphora subtropica and Dunaliella sp. to nickel pollution

Cited by 18 publications

References 47 publications

Toxicity of ZnFe-SO4 layered double hydroxide in Tetradesmus obliquus and evaluation of some physiological responses of the microalgae for stress management

Toxicity of ZnFe-SO4 layered double hydroxide in Tetradesmus obliquus and evaluation of some physiological responses of the microalgae for stress management

Heavy metal–induced stress in eukaryotic algae—mechanisms of heavy metal toxicity and tolerance with particular emphasis on oxidative stress in exposed cells and the role of antioxidant response

Integrated assessment of biomarker responses in algae Chlorella sorokiniana exposed to copper and cadmium

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