PuSH - Publication Server of Helmholtz Zentrum München: δ13C and δ37Cl isotope fractionation to characterize aerobic vs. anaerobic degradation of trichloroethylene.

Information

Clues to quality of journals

Open Access Policy of Helmholtz Association 2016

CC Licencences

Publication Metrics

Navigation

Home

Deutsch

EVA: Electronic Publishing

New EVA Application

Research

Advanced Search

Browse by ...

... HMGU-Authors/Consortia

... Organizational Structure

... Journal

... Publication Type

... Research Data

... Arbeitsgruppen

... Publication Year

Publication overview

Statistics

Statistics (last 5 years)

OA Publications

Publish

Submit Publication

Import publication from...

...EVA

Report missing publication

Highlights

Support & Contact

Contact persons

Help

Data protection

Helmholtz Open Science

JANE Journal Estimator

SHERPA/RoMEO

DOAJ

Export:

Text

Endnote (RIS) BIB

BibTeX

Gafni, A.* ; Lihl, C. ; Gelman, F.* ; Elsner, M. ; Bernstein, A.*

δ13C and δ37Cl isotope fractionation to characterize aerobic vs. anaerobic degradation of trichloroethylene.

Environ. Sci. Technol. Lett. 5, 202-208 (2018)

Postprint

DOI

	Open Access Green

Abstract
Metrics
Extra information

Trichloroethylene (TCE) is a carcinogenic organic chemical impacting water resources worldwide. Its breakdown by reductive vs oxidative degradation involves different types of chemical bonds. Hence, if distinct isotope effects are reflected in dual element (carbon and chlorine) isotope values, such trends could help distinguishing both processes in the environment. This work explored dual element isotope trends associated with TCE oxidation by two pure bacterial cultures: Pseudomonas putida F1 and Methylosinus trichosporium OB3b, where the latter expresses either soluble methane-monooxygenase (sMMO) or particulate methane-monooxygenase (pMMO). Carbon and chlorine isotope enrichment factors of TCE (ϵ13C = -11.5, -2.4, and -4.2‰ ϵ37Cl = 0.3, -1.3, and -2.4‰, respectively) differed strongly between the strains. The dual element isotope trend for strain F1 (ϵ13C/ϵ37Cl = -38) reflected, as expected, primary carbon and negligible chlorine isotope effects, whereas unexpectedly large chlorine isotope effects became apparent in the trend obtained with strain OB3b (ϵ13C/ϵ37Cl = +1.7 for sMMO and pMMO). Therefore, although dual element isotope analysis partly reflects predicted differences in oxidative vs reductive (ϵ13C/ϵ37Cl = 3.4-5.7) degradation, the unexpected OB3b fractionation data may challenge field interpretation.

Impact Factor

Scopus SNIP

Scopus
Cited By

Altmetric

5.869

0.000