Ecotoxicity of triclosan in soil: an approach using different species

Ramires, Paula Florêncio; Tavella, Ronan Adler; Escarrone, Ana Laura Venquiaruti; Volcão, Lisiane Martins; Honscha, Laiz Coutelle; Brum, Rodrigo de Lima; Silva, Alícia Bonifácio da; Júnior, Flávio Manoel Rodrigues da Silva

doi:10.1007/s11356-021-13633-y

Cited by 14 publications

(6 citation statements)

References 35 publications

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“…The microbial functional profile was assessed using the EcoPlate system (Biolog, Inc., Hayward, CA, USA), which is a widely used tool in ecotoxicological assays, after 14 days of exposure [33][34][35][36][37][38][39]. This system measures the utilization of 31 different carbon sources that are associated with microorganisms present in the evaluated matrix.…”

Section: Microbial Functional Profilementioning

confidence: 99%

“…Antibiotics are particularly interesting to be studied in this context, since they have microorganisms as a therapeutic target. Previous evidence already points to physiological changes mediated by microbial exposure to antibiotics [33], including the intestinal microbiota of invertebrates [34]. Thus, the objective of the present study was to evaluate the impact of ceftriaxone contamination on the functional profile of soil microbiota in the presence and absence of the earthworm species Eisenia andrei.…”

Section: Introductionmentioning

confidence: 95%

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Assessment of the Impact of Ceftriaxone on the Functional Profile of Soil Microbiota Using Biolog EcoPlateTM

et al. 2023

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Background: Antibiotics are essential to the treatment of diseases, but they have also brought about concerns in terms of their environmental, economic, and health impacts. Antibiotics can be excreted in unchanged form or as metabolites, which can cause toxicity by contaminating different environmental compartments, including soil. Soil is a critical compartment due to the numerous functions it performs and its direct impact on the communities of microorganisms, plants, and animals that make up the soil ecosystem. The functional profile of soil microbiota has emerged as a promising tool to assess soil quality. This study aimed to evaluate the functional profile of soil microbiota and the gut microbiota of earthworms in ceftriaxone-contaminated soil using Biolog EcoPlate. Methods: Soil samples contaminated with varying concentrations of ceftriaxone (0, 1, and 10 mg/kg) were incubated for 14 days in the presence or absence of the earthworm Eisenia andrei. After exposure, the physiological profile of the soil microbiota and the gut microbiota of the earthworms were evaluated using Biolog EcoPlate. Results: No significant differences were observed in the parameters evaluated using different concentrations of the antibiotic. The functional profile of the microbiota in the soil with and without earthworms was found to be similar, but interestingly, it differed from the profile of the intestinal microbiota of the earthworms. Conclusion: The findings of this study indicate that the presence of earthworms did not significantly alter the functional profile of the soil microbiota in ceftriaxone-contaminated soil. Further studies are necessary to investigate the potential impact of ceftriaxone and other antibiotics on soil microbiota and the role of earthworms in this regard.

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Section: Microbial Functional Profilementioning

confidence: 99%

Section: Introductionmentioning

confidence: 95%

Assessment of the Impact of Ceftriaxone on the Functional Profile of Soil Microbiota Using Biolog EcoPlateTM

et al. 2023

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“…As a typical hydrophobic organic compound, TCS exhibits further environmental persistence, based on its high octanol water partition coefficient (log Know = 4.8) and long half-life [ 12 , 13 ]. Compared to TCS, a variety of conversion products of TCS are more persistent, due to its higher hydrophobicity and lower potential for photodegradation, such as chlorophenols, methyl-triclosan, and dioxins [ 14 ].…”

Section: Introductionmentioning

confidence: 99%

Molecular Toxicity Mechanism Induced by the Antibacterial Agent Triclosan in Freshwater Euglena gracilis Based on the Transcriptome

Zhang

Yang

et al. 2023

Toxics

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Triclosan (TCS), a commonly used antibacterial preservative, has been demonstrated to have high toxicological potential and adversely affects the water bodies. Since algae are one of the most significant primary producers on the planet, understanding the toxicological processes of TCS is critical for determining its risk in aquatic ecosystems and managing the water environment. The physiological and transcriptome changes in Euglena gracilis were studied in this study after 7 days of TCS treatment. A distinct inhibition ratio for the photosynthetic pigment content in E. gracilis was observed from 2.64% to 37.42% at 0.3–1.2 mg/L, with TCS inhibiting photosynthesis and growth of the algae by up to 38.62%. Superoxide dismutase and glutathione reductase significantly changed after exposure to TCS, compared to the control, indicating that the cellular antioxidant defense responses were induced. Based on transcriptomics, the differentially expressed genes were mainly enriched in biological processes involved in metabolism pathways and microbial metabolism in diverse environments. Integrating transcriptomics and biochemical indicators found that changed reactive oxygen species and antioxidant enzyme activities stimulating algal cell damage and the inhibition of metabolic pathways controlled by the down-regulation of differentially expressed genes were the main toxic mechanisms of TCS exposure to E. gracilis. These findings establish the groundwork for future research into the molecular toxicity to microalgae induced by aquatic pollutants, as well as provide fundamental data and recommendations for TCS ecological risk assessment.

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“…Incineration of plastic waste causes the emission of toxic compounds (e.g., dioxins) to the atmosphere and also entails certain limitations in the availability of effective and economically profitable facilities or devices for burning this type of materials [10]. As a consequence, it leads to the determination of the environmental toxicity of pollutants, known as their ecotoxicity [11][12][13][14][15][16]. Natural polymers due to their excellent biocompatibility and biocompatibility have been used in medicine for many years [17][18][19][20][21][22].…”

Section: Introductionmentioning

confidence: 99%

Biodegradable Composites with Functional Properties Containing Biopolymers

et al. 2022

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There is a major focus on natural biopolymers of bacterial, animal, or plant origin as ecological materials, replacing petrochemical products. Biologically derived polylactide (PLA), polyhydroxybutyrate (PHB), and polyhydroxyalkanoates (PHA) possess interesting properties, but they are currently too expensive for most applications. Therefore, researchers try to find other biopolymers that are both durable and cheap enough to replace plastics in some applications. One possible candidate is gelatin, which can be transformed into a thin, translucent film that is flexible and has stable and high mechanical properties. Here, we present a method of synthesizing a composite material from gelatin. For preparation of such material, we used gelatin of animal origin (pig skin) with the addition of casein, food gelatin, glycerin, and enzymes as biocatalysts of chemical modification and further extraction of gelatin from collagen. Compositions forming films with homogeneous shapes and good mechanical properties were selected (Tensile strength reaches 3.11 MPa, while the highest value of elongation at break is 97.96%). After administering the samples to microbial scaring, the composites completely decomposed under the action of microorganisms within 30 days, which proves their biodegradation.

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Ecotoxicity of triclosan in soil: an approach using different species

Cited by 14 publications

References 35 publications

Assessment of the Impact of Ceftriaxone on the Functional Profile of Soil Microbiota Using Biolog EcoPlateTM

Assessment of the Impact of Ceftriaxone on the Functional Profile of Soil Microbiota Using Biolog EcoPlateTM

Molecular Toxicity Mechanism Induced by the Antibacterial Agent Triclosan in Freshwater Euglena gracilis Based on the Transcriptome

Biodegradable Composites with Functional Properties Containing Biopolymers

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