Publication Details

Reference Category Journals
DOI / URL link
Document Shareable Link
Title (Primary) The trans/cis ratio of unsaturated fatty acids is not applicable as biomarker for environmental stress in case of long-term contaminated habitats
Author Fischer, J.; Schauer, F.; Heipieper, H.J.;
Journal Applied Microbiology and Biotechnology
Year 2010
Department UBT;
Volume 87
Issue 1
Language englisch;
Keywords trans/cis ratio of unsaturated fatty acids; Pseudomonas putida P8; Biomarker; Adaptation; Bisphenol A; Sand columns
Abstract Cis-trans isomerization of unsaturated fatty acids is a crucial adaptive reaction of Pseudomonas and Vibrio species to toxic organic compounds or other environmental stress factors. In order to test the long-term performance of this adaptive mechanism as well as to assess its application as biomarker for environmental contamination studies were performed in batch cultures and in continuously running sand columns, simulating long-term contamination with bisphenol A (BPA). In short-term grown batch cultures a high correlation between trans/cis ratio and added BPA concentration and toxicity was observed. In contrary, this did not occur in the case of long-term sand columns. An increase in trans/cis ratio of unsaturated fatty acids only appeared in a limited period of time. Afterwards the trans/cis ratio reached the values measured for non-stressed cultures. Cis-trans isomerization is only an urgent response mechanism that is later substituted by other adaptive mechanisms. Therefore, it can be concluded that the trans/cis ratio of unsaturated fatty acids was shown not to be an appropriate biomarker for durable stress in the environment.
ID 9942
Persistent UFZ Identifier https://www.ufz.de/index.php?en=20939&ufzPublicationIdentifier=9942
Fischer, J., Schauer, F., Heipieper, H.J. (2010):
The trans/cis ratio of unsaturated fatty acids is not applicable as biomarker for environmental stress in case of long-term contaminated habitats
Appl. Microbiol. Biotechnol. 87 (1), 365 - 371