Long-term multi-endpoint exposure of the microalga Raphidocelis subcapitata to lanthanum and cerium

Siciliano, Antonietta; Guida, Marco; Serafini, Sara; Micillo, Maria; Galdiero, Emilia; Carfagna, Simona; Salbitani, Giovanna; Tommasi, Franca; Lofrano, Giusy; Suarez, Edith Guadalupe Padilla; Gjata, Isidora; Brouziotis, Antonios Apostolos; Trifuoggi, Marco; Liguori, Renato; Race, Marco; Fabbricino, Massimiliano; Libralato, Giovanni

doi:10.1016/j.scitotenv.2021.148229

Cited by 22 publications

(6 citation statements)

References 52 publications

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“…However, REEs and heavy metals (HMs) have similar environmental behaviours, can be accumulated by animals and plants and consequently they can pose potential risks in a one-health perspective (Pagano et al, 2015a;Gwenzi et al, 2018). Like HMs, REEs could generate reactive oxygen species (ROS), weaken, or inactivate the antioxidant defence and bind for the high affinity to vital macromolecules (Pagano et al, 2015a;Balali-Mood et al, 2021;Siciliano et al, 2021;Trapasso et al, 2021).…”

Section: Introductionmentioning

confidence: 99%

A first attempt to evaluate the toxicity to Phaeodactylum tricornutum Bohlin exposed to rare earth elements

Siciliano

Sabatino²,

Paone³

et al. 2022

Front. Environ. Sci.

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The increasing use and demand of rare earth elements in many emerging technologies is leading to a potentially higher input to the marine environment. This study compared for the first time the effect of lanthanum (La), cerium (Ce), neodymium (Nd), samarium (Sm), europium (Eu), gadolinium (Gd), dysprosium (Dy), and erbium (Er) to the microalga Phaeodactylum tricornutum Bohlin. The algal growth inhibition was investigated after 72 h of exposure. The median effect concentrations (EC50) ranged from 0.98 mg/L to 13.21 mg/L and elements were ranked as follows: Gd > Ce > Er > La > Eu > Nd > Dy > Sm. The comparison of predicted no effect concentrations (PNEC) for hazard and risk assessment with measured environmental concentrations showed that ecological risks deriving from REEs could be present, but limited to specific environments like estuarine waters. The results support evidence of actions to manage the REE impact in seawater environments, looking to improve the monitoring tailored to the different and dynamic nature of ecosystems.

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Section: Introductionmentioning

confidence: 99%

A first attempt to evaluate the toxicity to Phaeodactylum tricornutum Bohlin exposed to rare earth elements

Siciliano

Sabatino²,

Paone³

et al. 2022

Front. Environ. Sci.

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“…Exposure of organisms and microorganisms to rare-earth elements may have adverse effects, and these elements are emerging contaminants of soil and surface and groundwaters [ 46 , 47 ].…”

Section: Resultsmentioning

confidence: 99%

Interaction of the Fungal Metabolite Harzianic Acid with Rare-Earth Cations (La3+, Nd3+, Sm3+, Gd3+)

et al. 2022

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Rare-earth elements are emerging contaminants of soil and water bodies which destiny in the environment and effects on organisms is modulated by their interactions with natural ligands produced by bacteria, fungi and plants. Within this framework, coordination by harzianic acid (H2L), a Trichoderma secondary metabolite, of a selection of tripositive rare-earth cations Ln3+ (Ln3+ = La3+, Nd3+, Sm3+, and Gd3+) was investigated at 25 °C, and in a CH3OH/0.1 M NaClO4 (50/50 w/w) solvent, using mass spectrometry, circular dichroism, UV–Vis spectrophotometry, and pH measurements. Experimental data can be satisfactorily explained by assuming, for all investigated cations, the formation of a mono-complex (LnL+) and a bis-complex (LnL2−). Differences were found between the formation constants of complexes of different Ln3+ cations, which can be correlated with ionic radius. Since gadolinium is the element that raises the most concern among lanthanide elements, its effects on organisms at different levels of biological organization were explored, in the presence and absence of harzianic acid. Results of ecotoxicological tests suggest that harzianic acid can decrease gadolinium biotoxicity, presumably because of complex formation with Gd3+.

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“…They have been able to adapt to a large range of temperatures, pH, salinities, and light intensities and this led them to evolve into a wide variety of species, colonizing many places on earth including extremophilic habitats [ 2 , 3 , 4 ]. In the last few decades, the increasing interest in these microorganisms stimulated scientists to investigate how to use them as sources of biomolecules or as sustainable solutions for environmental issues [ 5 , 6 , 7 , 8 , 9 ]. For instance, microalgae can be used for bioremediation [ 8 , 9 , 10 ], or as biofertilizers and biostimulants or biopesticides [ 7 , 11 , 12 , 13 , 14 , 15 , 16 ].…”

Section: Introductionmentioning

confidence: 99%

“…In the last few decades, the increasing interest in these microorganisms stimulated scientists to investigate how to use them as sources of biomolecules or as sustainable solutions for environmental issues [ 5 , 6 , 7 , 8 , 9 ]. For instance, microalgae can be used for bioremediation [ 8 , 9 , 10 ], or as biofertilizers and biostimulants or biopesticides [ 7 , 11 , 12 , 13 , 14 , 15 , 16 ]. Due to their high concentrations of proteins, vitamins, and fatty acids, microalgae have been also evaluated as possible nutrients for different animals including both aquatic and terrestrial species [ 17 , 18 , 19 , 20 , 21 , 22 , 23 , 24 ].…”

Section: Introductionmentioning

confidence: 99%

Fungal Contamination in Microalgal Cultivation: Biological and Biotechnological Aspects of Fungi-Microalgae Interaction

Laezza

Salbitani

Carfagna

2022

JoF

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In the last few decades, the increasing interest in microalgae as sources of new biomolecules and environmental remediators stimulated scientists’ investigations and industrial applications. Nowadays, microalgae are exploited in different fields such as cosmeceuticals, nutraceuticals and as human and animal food supplements. Microalgae can be grown using various cultivation systems depending on their final application. One of the main problems in microalgae cultivations is the possible presence of biological contaminants. Fungi, among the main contaminants in microalgal cultures, are able to influence the production and quality of biomass significantly. Here, we describe fungal contamination considering both shortcomings and benefits of fungi-microalgae interactions, highlighting the biological aspects of this interaction and the possible biotechnological applications.

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Long-term multi-endpoint exposure of the microalga Raphidocelis subcapitata to lanthanum and cerium

Cited by 22 publications

References 52 publications

A first attempt to evaluate the toxicity to Phaeodactylum tricornutum Bohlin exposed to rare earth elements

A first attempt to evaluate the toxicity to Phaeodactylum tricornutum Bohlin exposed to rare earth elements

Interaction of the Fungal Metabolite Harzianic Acid with Rare-Earth Cations (La3+, Nd3+, Sm3+, Gd3+)

Fungal Contamination in Microalgal Cultivation: Biological and Biotechnological Aspects of Fungi-Microalgae Interaction

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