Skip to main content
Log in

Selective pressure of biphenyl/polychlorinated biphenyls on the formation of aerobic bacterial associations and their biodegradative potential

  • Original Article
  • Published:
Folia Microbiologica Aims and scope Submit manuscript

Abstract

Unique bacterial associations were formed in the polluted soils from territory of the industrial factories Open Joint Stock Company “The Middle Volga Chemical Plant,” Chapaevsk, Russia and Open Joint Stock Company “Lubricant Producing Plant,” Perm, Russia. This study evaluates the influence of the biphenyl/polychlorinated biphenyls (PCB) on the formation of aerobic bacterial associations and their biodegradative potential. Enrichment cultivation of the soil samples from the territories of these industrial factories with PCB (commercial mixture Sovol) was lead for forming aerobic bacterial enrichment cultures showing a unique composition. The dominating in these bacterial cultures was the phylum Proteobacteria (Beta- and Gammaproteobacteria). Using biphenyl as a carbon source led to decrease of biodiversity in the final stable bacterial associations. Periodic cultivation experiments demonstrated that the association PN2-B has a high degradative potential among the six studied bacterial associations. PN2-B degraded 100% mono-chlorobiphenyls (94.5 mg/L), 86.2% di-chlorobiphenyls (22.3 mg/L), 50.9% Sovol, and 38.4% Delor 103 (13.8 mg/L). Qualitative analysis of metabolites showed that association performed transformation of chlorobenzoic acids (PCB degradation intermediates) into metabolites of citrate cycle. Twelve individual strain-destructors were isolated. The strains were found to degrade 17.7–100% PCB1, 36.2–100% PCB2, 18.8–100% PCB3 (94.5 mg/L), and 15.7–78.2% PCB8 (22.3 mg/L). The strains were shown to metabolize chlorobenzoic acids formed during degradation of chlorobiphenyls. A unique ability of strains Micrococcus sp. PNS1 and Stenotrophomonas sp. PNS6 to degrade ortho-, meta-, and para-monosubstituted chlorobenzoic acids was revealed. Our results suggest that PN2-B and individual bacterial strains will be perspective for cleaning of the environment from polychlorinated biphenyls.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Fig. 1
Fig. 2
Fig. 3
Fig. 4
Fig. 5

Similar content being viewed by others

Availability of data and material (data transparency)

The sequences for the 16S rRNA gene have been deposited with the GenBank. Accession numbers are presented in the tables in the sect. “Results” and “Discussions.”

References

Download references

Funding

This research was funded by the grant of Russian Foundation of Basic Research 18-29-05016mk.

Author information

Authors and Affiliations

Authors

Contributions

Darya Egorova—conceptualization, investigation, formal analysis, validation, writing—original draft, funding acquisition; Anna Pyankova, Ludmila Anan’ina—investigation, formal analysis, validation, visualization, writing—original draft; Tatyana Kir’yanova—investigation, formal analysis; Elena Plotnikova—writing—review and editing.

Corresponding author

Correspondence to Darya Egorova.

Ethics declarations

Consent for publication

The authors declare that they have their Consent for publication of this work.

Conflict of interest

The authors declare no competing interests.

Additional information

Publisher's Note

Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.

Rights and permissions

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Egorova, D., Kir’yanova, T., Pyankova, A. et al. Selective pressure of biphenyl/polychlorinated biphenyls on the formation of aerobic bacterial associations and their biodegradative potential. Folia Microbiol 66, 659–676 (2021). https://doi.org/10.1007/s12223-021-00873-1

Download citation

  • Received:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s12223-021-00873-1

Navigation