Low effect of phenanthrene bioaccessibility on its biodegradation in diffusely contaminated soil

Crampon, Marc; Cébron, Aurélie; Portet‐Koltalo, Florence; Uroz, Stéphane; Derf, F. Le; Bodilis, Josselin

doi:10.1016/j.envpol.2017.03.053

Cited by 21 publications

(17 citation statements)

References 69 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The abundance of the OTU 3 (Gammaproteobacteria, order Xanthomonadales of the genus Nevskia) also showed a good correlation with the degradation of LMW PAHs. As previously shown [52], Nevskia was found as the main PHE degrader in PPY soil, with about 24% relative abundance among bacteria labelled with 13 C PHE (DNA-SIP). Among these different OTUs, 6 were dominantly found in the PHE degraders of Pv and PPY soils (from the Rhodocyclaceae family (OTUs 43 and 44), Polaromonas (OTU 26), Nevskia (OTU 3), Burkholderiales order (OTUs 5,8,10,12,14,26,28), Collimonas (OTU 14) and Dyella (OTU 20)).…”

Section: U N C O R R E C T E D P R O O Fsupporting

confidence: 63%

“…Interestingly, in a previous study using DNA Stable Isotope Probing, we showed that all the bacteria implied in PHE degradation in Pv soil belonged to the Betaproteobacteria class, especially in the Rhodocyclaceae family [52]. Gammaproteobacteria have also been described as capable of degrading PAHs [29], in particular the Xanthomonadales order [30,33].…”

Section: U N C O R R E C T E D P R O O Fmentioning

confidence: 84%

“…As discussed so far, PAH degradation seems to be related to soil biological parameters in the case of a recent contamination, and especially to the presence of some specific bacteria, especially belonging to the Betaproteobacteria class. The fact that soil physico-chemical parameters, and so PAHs bioaccessibility, is not a limiting factor in our study is partly due to the short contact time between spiked PAHs and the soils during our experiments (three months), which might result in a relatively good bioaccessibility of the PAHs [52]. In freshly contaminated soils, such as those that are chronically and diffusely contaminated, the bioaccessibility of PAHs, as well as OM content and nature, actually did not appear to be the main parameters limiting biodegradation [43,47].…”

Section: Links Between Initial Bacterial Community and Pah Degradationmentioning

confidence: 96%

See 2 more Smart Citations

Linking initial soil bacterial diversity and polycyclic aromatic hydrocarbons (PAHs) degradation potential

Crampon

Bodilis

Portet‐Koltalo

2018

Journal of Hazardous Materials

Self Cite

View full text Add to dashboard Cite

The aim of this study was to understand the role of indigenous soil microbial communities on the biodegradation of polycyclic aromatic hydrocarbons (PAHs) and to determine whether PAHs degradation potential in soils may be evaluated by analysis of bacterial diversity and potential metabolisms using a metagenomics approach. Five different soils were artificially contaminated with seven selected PAHs and the most abundant bacterial taxa were assessed by sequencing the 16S rRNA gene, and linking them to PAH biodegradation efficiencies. A PICRUSt approach was then led to estimate the degradation potentials by metagenomics inference. Although the role of bacteria in PAHs degradation is not directly established here, the presence of a large number of bacteria belonging to the Betaproteobacteria class correlated to a higher degradation of LMW PAHs. A link with specific bacterial taxa was more difficult to establish concerning HMW PAHs, which seemed to require more complex mechanisms as shown by PICRUSt.

show abstract

Section: U N C O R R E C T E D P R O O Fsupporting

confidence: 63%

Section: U N C O R R E C T E D P R O O Fmentioning

confidence: 84%

Section: Links Between Initial Bacterial Community and Pah Degradationmentioning

confidence: 96%

See 1 more Smart Citation

Linking initial soil bacterial diversity and polycyclic aromatic hydrocarbons (PAHs) degradation potential

Crampon

Bodilis

Portet‐Koltalo

2018

Journal of Hazardous Materials

Self Cite

View full text Add to dashboard Cite

show abstract

“…However, increased desorption does not always result in increased bioremediation effectiveness. Crampon et al [55] have observed that the amendment of rhamnolipids changed the phenanthrene sorption and desorption isotherms in the two soils tested, but simultaneously there was no noticeable influence of biosurfactant on hydrocarbon degradation. What is important, is that the soil or sediments are complex systems and the presence of other compounds (apart of biosurfactants) can strongly change the effectiveness of biosurfactants surface activity [56].…”

Section: Hydrocarbon Emulsification and Desorption With Biosurfactantsmentioning

confidence: 99%

The Impact of Biosurfactants on Microbial Cell Properties Leading to Hydrocarbon Bioavailability Increase

Kaczorek

Pacholak

Zdarta

et al. 2018

Colloids and Interfaces

124

View full text Add to dashboard Cite

The environment pollution with hydrophobic hydrocarbons is a serious problem that requires development of efficient strategies that would lead to bioremediation of contaminated areas. One of the common methods used for enhancement of biodegradation of pollutants is the addition of biosurfactants. Several mechanisms have been postulated as responsible for hydrocarbons bioavailability enhancement with biosurfactants. They include solubilization and desorption of pollutants as well as modification of bacteria cell surface properties. The presented review contains a wide discussion of these mechanisms in the context of alteration of bioremediation efficiency with biosurfactants. It brings new light to such a complex and important issue.

show abstract

“…functions involved in PAH biodegradation; Cébron et al 2008). Nevertheless, communities from weakly PAH-contaminated soils (soil background level) can also harbour the PAH degradation function (Crampon et al 2017). Therefore, we can wonder if the effectiveness (i.e.…”

Section: Introductionmentioning

confidence: 99%

DNA stable isotope probing reveals contrasted activity and phenanthrene-degrading bacteria identity in a gradient of anthropized soils

Lemmel

Maunoury-Danger

Leyval

et al. 2019

FEMS Microbiology Ecology

View full text Add to dashboard Cite

Polycyclic aromatic hydrocarbons (PAHs) are ubiquitous soil organic pollutants. Although PAH-degrading bacteria are present in almost all soils, their selection and enrichment have been shown in historically high PAH contaminated soils. We can wonder if the effectiveness of PAH biodegradation and the PAH-degrading bacterial diversity differ among soils. The stable isotope probing (SIP) technique with 13C-phenanthrene (PHE) as a model PAH was used to: (i) compare for the first time a range of 10 soils with various PAH contamination levels, (ii) determine their PHE-degradation efficiency and (iii) identify the active PHE-degraders using 16S rRNA gene amplicon sequencing from 13C-labeled DNA. Surprisingly, the PHE degradation rate was not directly correlated to the initial level of total PAHs and phenanthrene in the soils, but was mostly explained by the initial abundance and richness of soil bacterial communities. A large diversity of PAH-degrading bacteria was identified for seven of the soils, with differences among soils. In the soils where the PHE degradation activities were the higher, Mycobacterium species were always the dominant active PHE degraders. A positive correlation between PHE-degradation level and the diversity of active PHE-degraders (Shannon index) supported the hypothesis that cooperation between strains led to a more efficient PAH degradation.

show abstract

Low effect of phenanthrene bioaccessibility on its biodegradation in diffusely contaminated soil

Cited by 21 publications

References 69 publications

Linking initial soil bacterial diversity and polycyclic aromatic hydrocarbons (PAHs) degradation potential

Linking initial soil bacterial diversity and polycyclic aromatic hydrocarbons (PAHs) degradation potential

The Impact of Biosurfactants on Microbial Cell Properties Leading to Hydrocarbon Bioavailability Increase

DNA stable isotope probing reveals contrasted activity and phenanthrene-degrading bacteria identity in a gradient of anthropized soils

Contact Info

Product

Resources

About