| Title: | Biotic and heavy metal stress response in plants: evidence for common signals |
| Author(s): | Mithofer A; Schulze B; Boland W; |
| Address: | "Max-Planck-Institut fur Chemische Okologie, Bioorganische Chemie, Beutenberg Campus, Hans-Knoll-Str. 8, D-07745 Jena, Germany. amithoefer@ice.mpg.de" |
| DOI: | 10.1016/j.febslet.2004.04.011 |
| ISSN/ISBN: | 0014-5793 (Print) 0014-5793 (Linking) |
| Abstract: | "In higher plants, biotic stress (e.g., herbivore or pathogen attack) as well as abiotic stress (in particular heavy metals) often induce the synthesis and accumulation of the same defense-related secondary metabolites. This well-known finding still awaits an explanation regarding the common features of both stress types. In this study, a mechanism is proposed that links reactive oxygen species (ROS) generation with lipid oxidation processes, ultimately resulting in the formation of similar, highly active signalling compounds. The generation of ROS is a common event in both heavy metal treatment and biotic stress although it can depend on quite different, enzymatic and non-enzymatic reactions. Regardless, ROS are involved in the oxidation of unsaturated fatty acids which initiate the formation of oxylipins, a highly variable class of lipid-derived compounds in plants. Oxylipins represent new endogenous signals involved in biotic- and abiotic-induced stress responses" |
| Keywords: | "Animals Fatty Acids, Unsaturated/chemistry/metabolism Lipoxygenase/metabolism Metals, Heavy/*toxicity NADPH Oxidases/metabolism Oils, Volatile/analysis Oxidative Stress/drug effects/physiology Phaseolus/drug effects/metabolism/parasitology Plant Leaves/ch;" |
| Notes: | "MedlineMithofer, Axel Schulze, Birgit Boland, Wilhelm eng Research Support, Non-U.S. Gov't England 2004/05/19 FEBS Lett. 2004 May 21; 566(1-3):1-5. doi: 10.1016/j.febslet.2004.04.011" |
