Effect of chromium oxide (III) nanoparticles on the production of reactive oxygen species and photosystem II activity in the green alga Chlamydomonas reinhardtii

Costa, Cassiane da; Perreault, François; Oukarroum, Abdallah; Melegari, Sílvia Pedroso; Popovic, Radovan; Matias, William Gerson

doi:10.1016/j.scitotenv.2016.01.028

Cited by 91 publications

(31 citation statements)

References 75 publications

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“…The results of Navarro et al (), Saison et al (), and Costa et al () showed a decrease in photosynthetic yield, but at high NPs concentrations (from half to 30 times higher than our highest Cu‐NPs). Navarro et al () exposed C. reinhardtii to concentrations as high as 360 μg L −1 Ag‐NPs; Saison et al () used 20 000 μg L −1 CuO‐NPs, and Costa et al () 10 7 μg L −1 Cr 2 O 3 ‐NPs. Marchello et al () found that TiO 2 ‐NPs does not appear to affect C. sorokiniana photosynthesis exposed to 7900 µg L −1 .…”

Section: Discussionsupporting

confidence: 46%

“…It has been reported that NPs cause growth inhibition in microalgae and that this is dependent not only on the quality of the NPs, but also on the concentrations tested and the exposure time. Reductions in photosystem II activity (Navarro et al ; Saison et al ) and electron transfer rates in the electron transport chain of photosynthesis have also been shown (Costa et al ). The toxicity of NPs has been attributed to the production of ROS triggered by the release of their ions (Navarro et al ; Aruoja et al ; Behra et al ), with comparatively less toxicity assigned to the NPs themselves (Melegari et al ; Costa et al ).…”

Section: Introductionmentioning

confidence: 98%

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Physiological responses of Chlorella sorokiniana to copper nanoparticles

Barreto

Tonietto

Amaral

et al. 2019

Enviro Toxic and Chemistry

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Copper (Cu) nanomaterials have been increasingly researched and produced for many different consumer products. They have high reactivity and bactericidal properties, making them important in antifouling paints, which are thus directly introduced into aquatic ecosystems. However, studies are scarce on the behavior of Cu nanoparticles (Cu-NPs) in natural aquatic systems and their interactions with primary producers such as microalgae. We investigated the effects of NPs on some physiological responses of the freshwater phytoplankton Chlorella sorokiniana. The cells were exposed to nominal concentrations ranging from 2.50 to 635.00 mg L À1 Cu-NPs for 96 h under laboratory-controlled conditions. The cultures were monitored daily for population growth and maximum photosynthetic quantum yield. Total lipids, proteins, and carbohydrates were quantified at 72 h of Cu-NP exposure. The results showed a positive correlation between nominal Cu-NPs and Cu in the biomass (0.97 correlation coefficient) and that this was inversely proportional to total carbohydrates, with a -0.64 correlation coefficient. At the higher end of the Cu-NP concentrations tested, higher total proteins and reduced growth rates were obtained in comparison with controls; we suggest that metal-binding proteins/antioxidants and nonstructural proteins were preferentially produced under these conditions. Our results contribute to an understanding of the interaction between Cu-NPs and a cosmopolitan phytoplankton, C. sorokiniana, and we emphasize that the disposal and use of Cu-NPs requires monitoring because even at environmentally relevant concentrations, the composition of the algae was affected. Environ Toxicol Chem 2019;38:387-395. C 2018 SETAC

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Section: Discussionsupporting

confidence: 46%

Section: Introductionmentioning

confidence: 98%

Physiological responses of Chlorella sorokiniana to copper nanoparticles

Barreto

Tonietto

Amaral

et al. 2019

Enviro Toxic and Chemistry

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“…Second, Cr contamination remains a serious environmental problem in several low-to middle-income countries whose economic activity is linked with the material demands of the current lifestyle in developed countries (Pure Earth and Green Cross 2016). Third, the safe-perspective use of Cr 2 O 3 NPs is linked to their intrinsic properties but also to the possible release of soluble Cr in either redox form (Horie et al 2013;da Costa et al 2016;Puerari et al 2016). In all cases, the appropriate knowledge of the actual ecotoxicity of Cr VI and Cr III necessary to assess the environmental risks of Cr appears incomplete.…”

Section: Implications For Cr Hazard and Risk Assessmentmentioning

confidence: 99%

Chromium hazard and risk assessment: New insights from a detailed speciation study in a standard test medium

Aharchaou

Cambier

et al. 2018

Enviro Toxic and Chemistry

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Despite the consensus about the importance of chemical speciation in controlling the bioavailability and ecotoxicity of trace elements, detailed speciation studies during laboratory ecotoxicity testing remain scarce, contributing to uncertainty when extrapolating laboratory findings to real field situations in risk assessment. We characterized the speciation and ecotoxicological effects of chromium (Cr and Cr ) in the International Organization for Standardization (ISO) medium for algal ecotoxicity testing. Total and dissolved (< 0.22 μm) Cr concentrations showed little variability in media spiked with Cr , whereas dissolved Cr concentration decreased by as much as 80% over a 72-h time period in medium amended with Cr . Analyses by ion chromatography inductively coupled plasma mass spectrometry (IC-ICP-MS) highlighted the absence of redox interconversion between Cr or Cr both in the presence and absence of algal cells (Raphidocelis subcapitata). Furthermore, the concentration of ionic Cr dropped below detection limits in less than 2 h with the corresponding formation of carbonate complexes and Cr hydroxides. Precipitation of Cr in the form of colloidal particles of variable diameters was confirmed by nanoparticle (NP) tracking analysis, single particle ICP-MS, and single particle counting. In terms of time-weighted dissolved (< 0.22 μm) Cr concentration, Cr was 4 to 10 times more toxic than Cr . However, Cr ecotoxicity could arise from interactions between free ionic Cr and algae at the beginning of the test, from the presence of Cr-bearing NPs, or from a combination of the 2. Future ecotoxicological studies must pay more attention to Cr speciation to reliably compare the ecotoxicity of Cr and Cr . Environ Toxicol Chem 2018;37:983-992. © 2017 SETAC.

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“…Toxic chemicals and stress conditions would result in oxidative damage to algae [44,45] [46]. The SOD-CAT system is the first line of defense of the body against oxidative stress and can be used as a biomarker of ROS production [47].…”

Section: Sod and Cat Analysismentioning

confidence: 99%