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Titel (primär) Anaerobically grown Thauera aromatica, Desulfococcus multivorans, Geobacter sulfurreducens are more sensitive towards organic solvents than aerobic bacteria
Autor Duldhardt, I.; Nijenhuis, I.; Schauer, F.; Heipieper, H.J.;
Journal / Serie Applied Microbiology and Biotechnology
Erscheinungsjahr 2007
Department ISOBIO; UBT;
Band/Volume 77
Heft 3
Sprache englisch;
Keywords Organic pollutants; BTEX; Phenols; Toxicity; Anaerobic bacteria; Thauera aromatica; Desulfococcus multivorans; Geobacter sulfurreducens
Abstract The effect of seven important pollutants and three representative organic solvents on growth of Thauera aromatica K172, as reference strain for nitrate-reducing anaerobic bacteria, was investigated. Toxicity in form of the effective concentrations (EC50) that led to 50% growth inhibition of potential organic pollutants such as BTEX (benzene, toluene, ethylbenzene, and xylene), chlorinated phenols and aliphatic alcohols on cells was tested under various anaerobic conditions. Similar results were obtained for Geobacter sulfurreducens and Desulfococcus multivorans as representative for Fe3+-reducing and sulphate-reducing bacteria, respectively, leading to a conclusion that anaerobic bacteria are far more sensitive to organic pollutants than aerobic ones. Like for previous studies for aerobic bacteria, yeast and animal cell cultures, a correlation between toxicity and hydrophobicity (log P values) of organic compounds for different anaerobic bacteria was ascertained. However, compared to aerobic bacteria, all three tested anaerobic bacteria were shown to be about three times more sensitive to the tested substances.
ID 1738
dauerhafte UFZ-Verlinkung https://www.ufz.de/index.php?en=20939&ufzPublicationIdentifier=1738
Duldhardt, I., Nijenhuis, I., Schauer, F., Heipieper, H.J. (2007):
Anaerobically grown Thauera aromatica, Desulfococcus multivorans, Geobacter sulfurreducens are more sensitive towards organic solvents than aerobic bacteria
Appl. Microbiol. Biotechnol. 77 (3), 705 - 711