Evaluation of the Use of Lime and Nanosilica for the Improvement of Clay Soil Structure and Degradation of Hydrocarbons

Muente, Adriana; Cipriani-Ávila, Isabel; García-Villacís, Karina; Pinos-Vélez, Verónica; Hidalgo-Lasso, Daniel; Ruíz, Pablo; Luna, Verónica Stedile

doi:10.3390/pollutants2040028

Cited by 2 publications

(2 citation statements)

References 36 publications

(46 reference statements)

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“…204,205 In addition, soil texture and composition, including the presence of clay or organic matter, can affect PAH adsorption and microbial accessibility, thereby influencing degradation rates. 206 Temperature fluctuations and moisture content in the rhizosphere also modulate microbial activity and, consequently, the degradation of PAHs. 204 Furthermore, the interaction between the oxygen released by plant roots and extracellular electrons generated through microbial respiration can give rise to extracellular ROS.…”

Section: Microbial Degradation Of Pahs In Plantmentioning

confidence: 99%

“…Abiotic factors also exert a significant influence on the degradation of PAHs within the rhizosphere. Soil pH, for example, can impact nutrient availability and microbial activity, either inhibiting or promoting the growth of specific PAH-degrading bacteria and enzymes. , In addition, soil texture and composition, including the presence of clay or organic matter, can affect PAH adsorption and microbial accessibility, thereby influencing degradation rates . Temperature fluctuations and moisture content in the rhizosphere also modulate microbial activity and, consequently, the degradation of PAHs .…”

Section: Pahs Degradation In the Rhizosphere Of Plantsmentioning

confidence: 99%

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Transfer and Degradation of PAHs in the Soil–Plant System: A Review

Tarigholizadeh,

Sushkova,

Rajput

et al. 2023

J. Agric. Food Chem.

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Polycyclic aromatic hydrocarbons (PAHs) are highly toxic, persistent organic pollutants that threaten ecosystems and human health. Consistent monitoring is essential to minimize the entry of PAHs into plants and reduce food chain contamination. PAHs infiltrate plants through multiple pathways, causing detrimental effects and triggering diverse plant responses, ultimately increasing either toxicity or tolerance. Primary plant detoxification processes include enzymatic transformation, conjugation, and accumulation of contaminants in cell walls/vacuoles. Plants also play a crucial role in stimulating microbial PAHs degradation by producing root exudates, enhancing bioavailability, supplying nutrients, and promoting soil microbial diversity and activity. Thus, synergistic plant−microbe interactions efficiently decrease PAHs uptake by plants and, thereby, their accumulation along the food chain. This review highlights PAHs uptake pathways and their overall fate as contaminants of emerging concern (CEC). Understanding plant uptake mechanisms, responses to contaminants, and interactions with rhizosphere microbiota is vital for addressing PAH pollution in soil and ensuring food safety and quality.

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Section: Microbial Degradation Of Pahs In Plantmentioning

confidence: 99%

Section: Pahs Degradation In the Rhizosphere Of Plantsmentioning

confidence: 99%

Transfer and Degradation of PAHs in the Soil–Plant System: A Review

Tarigholizadeh,

Sushkova,

Rajput

et al. 2023

J. Agric. Food Chem.

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Response of dung beetle diversity to remediation of soil ecosystems in the Ecuadorian Amazon

Pozo-Rivera

Quiloango-Chimarro

Paredes

et al. 2023

PeerJ

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Background Efforts to alleviate the negative effects of oil spills in the Ecuadorian Amazon include remediation activities such as cleaning, reshaping, and revegetation of polluted areas. However, studies of the diversity of biological communities in these hydrocarbon-degraded ecosystems have never been carried out. Here, we evaluated the diversity of dung beetles on remediated soil ecosystems (Agricultural Soils and Sensitive Ecosystems) and on non-contaminated soils (Natural Forests and Palm Plantations). Methodology The study was conducted in Sucumbíos and Orellana provinces, in the Ecuadorian Amazon at four sampling sites per ecosystem type (a total of 16 sites). At each sampling site, six pitfall traps remained active for 120 consecutive h per month for 1 year. Results We collected 37 species and 7,506 individuals of dung beetles. We observed significant differences in mean species abundance, richness, and diversity between non-contaminated soil ecosystems and remediated soil ecosystems, with Natural Forests presenting the highest values, and Agricultural Soils the lowest values. Regarding sampling month, we also found significant differences among ecosystems, which were also higher in Natural Forests. Discussion The results suggest that hydrocarbon-degraded ecosystems tend to conserve lower beetle diversity one year after remediation highlighting the importance of Natural Forests for the conservation of tropical biodiversity. Therefore, dung beetle diversity could be used for future landscape management of these hydrocarbon-degraded ecosystems.

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Evaluation of the Use of Lime and Nanosilica for the Improvement of Clay Soil Structure and Degradation of Hydrocarbons

Cited by 2 publications

References 36 publications

Transfer and Degradation of PAHs in the Soil–Plant System: A Review

Transfer and Degradation of PAHs in the Soil–Plant System: A Review

Response of dung beetle diversity to remediation of soil ecosystems in the Ecuadorian Amazon

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