Suppression of soil organic matter decomposition by gasoline and diesel as assessed by 13C natural abundance

Stelmach, Wioleta; Szarlip, Paweł; Trembàczowski, Andrzej; Bieganowski, Andrzej; Kuzyakov, Yakov

doi:10.1016/j.ejsobi.2015.12.009

Cited by 8 publications

(2 citation statements)

References 34 publications

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“…The carbon cycle was therefore slightly disturbed by the PHE contamination, from initial hydrolysis of macromolecules to the final steps of degradation. A reduction of SOM mineralization along the PHE gradient would result in SOM accumulation, as previously observed in metal (Valsecchi, Gigliotti and Farini 1995;Dai et al 2004;Giller, Witter and McGrath 2009) and hydrocarbon (Stelmach et al 2016) contaminated sites. Moreover, enzymatic activities related to PAH biodegradation in soils like peroxidases and phenol oxidases (Kadri et al 2017) were not impacted or decreased with the PAH concentration indicating that other mechanisms were involved.…”

Section: Bacterial Communities Negatively Impacted By the Phe Gradientsupporting

confidence: 64%

Taxonomic and functional responses of soil and root bacterial communities associated with poplar exposed to a contamination gradient of phenanthrene

Gréau

Blaudez

Cordier

et al. 2023

FEMS Microbiology Ecology

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Polycyclic aromatic hydrocarbon (PAH) contamination of industrial wasteland soils affects microbial diversity, but little is known about the dose-response effects of such contaminants on taxonomic and functional diversities of rhizospheric and plant endophytic bacteria. This study focused on the response of soil and root bacterial communities associated to poplar grown in a contamination gradient of phenanthrene (PHE). It was hypothesized that the increase in contamination would modify gradually the bacterial diversity and functions. The effects of the PHE contamination were limited to soil communities and did not affect the poplar root endophytome where Streptomyces and Cutibacterium were the most abundant genera. Along the PHE gradient, alpha-diversity indices decreased and the community structure of soil bacteria at the taxonomic level shifted. The abundance of genes involved in PAH-degradation pathways and the relative proportion of certain microbial taxa such as Polaromonas, Sphingopyxis, Peredibacter, Phenylobacterium, Ramlibacter, Sphingomonas, Pseudomonas, often described as potential PAH biodegraders, increased with the PHE concentration in the soil community. Conversely, the contamination negatively impacted other taxa like Nocardioides, Streptomyces, Gaiella, Solirubrobacter, Bradyrhizobium and Nitrospira. Functional inference and enzymatic activity measurements revealed that some bacterial functions related to carbon, nitrogen and phosphorus cycles were modified in soil throughout the PHE gradient. This study allowed a deeper understanding of the complex plant-bacteria interactions in the case of soil PAH contamination and the potential impact on soil functioning.

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Section: Bacterial Communities Negatively Impacted By the Phe Gradientsupporting

confidence: 64%

Taxonomic and functional responses of soil and root bacterial communities associated with poplar exposed to a contamination gradient of phenanthrene

Gréau

Blaudez

Cordier

et al. 2023

FEMS Microbiology Ecology

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“…Stelmach et al [107] observed that petroleum contamination limited the transformation of humic acid, fulvic acid and humin, commonly referred to as soil organic carbon, which are nutrient sources for soil microbial growth [108,109]. As reported by several authors [110,111], exogenous carbon inputs affect the mineralization of soil organic carbon, which is correlated with variations in the microbial community composition.…”

Section: Chemical Changes Generated By the Electric Field In Sedimentsmentioning

confidence: 98%

Electrokinetic Remediation in Marine Sediment: A Review and a Bibliometric Analysis

Porcino,

Crisafi,

Catalfamo

et al. 2024

Sustainability

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Daily industrial activities pose a significant risk of environmental contamination through the release of toxic chemicals, including heavy metals, radionuclides and organic pollutants. Coastal marine areas, estuaries and harbors serve as primary hotspots for such pollution, with marine sediments acting as the ultimate sink for industrial and urban discharges, posing a serious environmental problem. Addressing this pressing issue requires the adoption of environmentally friendly technologies for the remediation and recovery of contaminated marine sediments. This paper provides a comprehensive review of different approaches for the remediation of contaminated sediments, focusing on the principle of electrokinetic remediation, with special emphasis on the use of microorganisms. A bibliometric analysis of key articles in the field is presented to elucidate the most important findings, particularly in the marine environment. The current state-of-the-art is reported for soil and sediment remediation approaches, with the first large-scale experiments and a preliminary cost estimate reported. However, the limited information available on the applicability of these techniques in the marine environment is highlighted. The limitations and risks associated with an inadequate implementation of this technique are discussed while acknowledging the advantages it offers for in situ remediation in marine environments.

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Carbon mineralization and biochemical effects of short-term wheat straw in crude oil contaminated sandy soil

Alotaibi¹,

Usman

Abduljabbar

et al. 2018

Applied Geochemistry

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Suppression of soil organic matter decomposition by gasoline and diesel as assessed by 13C natural abundance

Cited by 8 publications

References 34 publications

Taxonomic and functional responses of soil and root bacterial communities associated with poplar exposed to a contamination gradient of phenanthrene

Taxonomic and functional responses of soil and root bacterial communities associated with poplar exposed to a contamination gradient of phenanthrene

Electrokinetic Remediation in Marine Sediment: A Review and a Bibliometric Analysis

Carbon mineralization and biochemical effects of short-term wheat straw in crude oil contaminated sandy soil

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