Cited by 37Microbial bioremediation and biosurfactantsEnvironmental Chemistry and AnalysisMicrobial Fuel Cells and Bioremediation

Organic and inorganic model soil fractions instigate the formation of distinct microbial biofilms for enhanced biodegradation of benzo a pyrene

Han, Cheng, Zhang, Yinping, Redmile-Gordon, Marc, Deng, Huan, Gu, Zhenggui, Zhao, Qiguo, Wang, Fang·2021·Journal of Hazardous Materials

Abstract

This study conducted the sorption and biodegradation of benzo[a]pyrene (BaP) by microbial biofilm communities developed on proxies for materials typically found in soils. The half-life of BaP was 4.7 and 2.3 weeks for biofilms on the inorganic carrier (BC INOR, montmorillonite) and on the organic carrier (BC OR, humic acid), respectively. In contrast, the half-life was 7.0 weeks for specialized planktonic cultures (PK). The exposure to BaP caused the development of lipid inclusion bodies inside the bacteria of the PK systems and biofilms of the BC INOR, but not on the biofilms of the BC OR system. Interestingly, the BC OR displayed not only the greatest BaP sorption capacity but also the greatest bacterial density and membrane integrity and the shortest bacteria-to-bacteria distances, which were consistent with the increased production of cell surface extracellular polymeric substances on the BC OR. Both carriers caused a noticeable shift in the bacterial genera during the biodegradation of the BaP. The BC INOR selected for Rhodococcus, Brucella, Chitinophaga, and Labrys, whereas the BC OR favored Rhodococcus and Dokdonella. It indicated that ultra-structure and BaP degradation within the organic carrier-attached biofilms differed from the inorganic ones, and suggested that the microstructural heterogeneity and microbial biodiversity from biofilms on the organic carrier promoted biodegradation.

Integrity signals

Registry

Crossref · 10.1016/j.jhazmat.2020.124071

Cites

61 of 61 references verified0 citation errors · 0 not checkable

Statistics

Recomputing p-values needs the paper’s full text.

Claims the paper makes

This paper’s full text isn’t openly available, so its claims and self-check weren’t run. The registry and citation checks still apply.

Claims other papers make about this one

Each is checked against this paper’s own text: does it say what the citing paper says it does?

  • Agricultural soils contribute about 3.30 Gt CO2-eq year−1 to C sequestration.

    “Agricultural soils can be an important C pool and contribute about 3.30 Gt CO2-eq year−1 to C sequestration,148 although agricultural food production is related to GHG emissions.149”

    From Technologies and perspectives for achieving carbon neutrality (2021) · cites this paper as [148]

Cites

Flagged first, then by citations

Cited by

Sorted by citations

Authors
Han, C., Zhang, Y., Redmile-Gordon, M., Deng, H., Gu, Z., Zhao, Q., & Wang, F.
Affiliations
  • Nanjing Normal University (CN)
  • Royal Horticultural Society (GB)
  • Chinese Academy of Sciences (CN)
Corresponding author
  • Zhang, Yinping
  • Wang, Fang
Venue
Journal of Hazardous Materials
Publisher
Elsevier BV
Published
2021-02
Volume
404
Issue
Pt A
Pages
124071
ISSN
0304-3894 (ISSN-L)
OpenAlex
W3089308052
Cited by
37
References
61
Citations by year
2026: 3 · 2025: 8 · 2024: 6 · 2023: 7 · 2022: 6 · 2021: 7
FWCI
1.23
Type
journal article
Language
en
Open access
closed
Locations
  • Journal of Hazardous Materials (publishedVersion)
  • PubMed (publishedVersion)
Funders
National Natural Science Foundation of China
Topics
  • Physical Sciences › Environmental Science › Pollution › Microbial bioremediation and biosurfactants
  • Physical Sciences › Environmental Science › Environmental Chemistry › Environmental Chemistry and Analysis
  • Physical Sciences › Environmental Science › Environmental Engineering › Microbial Fuel Cells and Bioremediation
Keywords
benzo[a]pyrene, biofilm, biodegradation, humic acid, montmorillonite, sorption, extracellular polymeric substances, Rhodococcus, Dokdonella, bacterial community composition, heterogeneous microstructure, polycyclic aromatic hydrocarbons
MeSH terms
Benzo(a)pyrene, Biodegradation, Environmental, Polycyclic Aromatic Hydrocarbons, Soil, Soil Pollutants, Biofilms

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review