Microbial dehalogenation of organohalides in marine and estuarine environments

Giulio Zanaroli, Andrea Negroni, Max Haggblom, Fabio Fava

Research output: Contribution to journalReview article

45 Citations (Scopus)

Abstract

Marine sediments are the ultimate sink and a major entry way into the food chain for many highly halogenated and strongly hydrophobic organic pollutants, such as polychlorinated biphenyls (PCBs), polychlorinated dibenzo-. p-dioxins (PCDDs), polybrominated diphenylethers (PBDEs) and 1,1,1-trichloro-2,2-bis(. p-chlorophenyl)ethane (DDT). Microbial reductive dehalogenation in anaerobic sediments can transform these contaminants into less toxic and more easily biodegradable products. Although little is still known about the diversity of respiratory dehalogenating bacteria and their catabolic genes in marine habitats, the occurrence of dehalogenation under actual site conditions has been reported. This suggests that the activity of dehalogenating microbes may contribute, if properly stimulated, to the in situ bioremediation of marine and estuarine contaminated sediments.

Original languageEnglish (US)
Pages (from-to)287-295
Number of pages9
JournalCurrent Opinion in Biotechnology
Volume33
DOIs
StatePublished - Jun 1 2015

Fingerprint

Dehalogenation
DDT
Sediments
Geologic Sediments
Environmental Biodegradation
Food Chain
Poisons
Polychlorinated Biphenyls
Ocean habitats
Ecosystem
Bioremediation
Organic pollutants
Ethane
Polychlorinated biphenyls
Bacteria
Genes
Impurities
1,4-dioxin
Polychlorinated Dibenzodioxins

All Science Journal Classification (ASJC) codes

  • Biotechnology
  • Bioengineering
  • Biomedical Engineering

Cite this

Zanaroli, Giulio ; Negroni, Andrea ; Haggblom, Max ; Fava, Fabio. / Microbial dehalogenation of organohalides in marine and estuarine environments. In: Current Opinion in Biotechnology. 2015 ; Vol. 33. pp. 287-295.
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Microbial dehalogenation of organohalides in marine and estuarine environments. / Zanaroli, Giulio; Negroni, Andrea; Haggblom, Max; Fava, Fabio.

In: Current Opinion in Biotechnology, Vol. 33, 01.06.2015, p. 287-295.

Research output: Contribution to journalReview article

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AB - Marine sediments are the ultimate sink and a major entry way into the food chain for many highly halogenated and strongly hydrophobic organic pollutants, such as polychlorinated biphenyls (PCBs), polychlorinated dibenzo-. p-dioxins (PCDDs), polybrominated diphenylethers (PBDEs) and 1,1,1-trichloro-2,2-bis(. p-chlorophenyl)ethane (DDT). Microbial reductive dehalogenation in anaerobic sediments can transform these contaminants into less toxic and more easily biodegradable products. Although little is still known about the diversity of respiratory dehalogenating bacteria and their catabolic genes in marine habitats, the occurrence of dehalogenation under actual site conditions has been reported. This suggests that the activity of dehalogenating microbes may contribute, if properly stimulated, to the in situ bioremediation of marine and estuarine contaminated sediments.

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