Induction of oxidative stress related responses in Arabidopsis thaliana following uranium exposure

Research output: Contribution to report/book/conference proceedingsIn-proceedings paper

Authors

Institutes & Expert groups

Documents & links

Abstract

Induction of the anti-oxidative defense system, comprising several anti-oxidant molecules and reactive oxygen species (ROS)-scavenging enzymes, seems to be of great importance in heavy metal toxicity. The importance of oxidative stress related responses induced in plants after environmental uranium contamination has been insufficiently studied in the past. In this study, responses on the development of Arabidopsis thaliana seedlings were investigated after exposure to different uranium concentrations for 3 days. The importance of oxidative stress related responses in uranium toxicity was evaluated by analyzing relevant enzymes of the antioxidative defense system (SOD and CAT) on protein and transcriptional level. Results indicate important toxicity effects on growth and plant development after exposure to 100 µM uranium. Furthermore the study indicates that the induction of oxidative stress related responses plays a role in uranium stress but responses differ for leaves and roots.

Details

Original languageEnglish
Title of host publicationProceedings of the International Conference on Radioecology & Environmental Radioactivity
Place of PublicationOsteras, Norway
Pages306-309
Volume2
Publication statusPublished - Jun 2008
EventInternational Conference on Radioecology and Environmental Radioactivity - Norwegian Radiation Protection Authority (NRPA) and Institut de Radioprotection et de Sûreté Nucléaire (IRSN), Bergen, Norway
Duration: 15 Jun 200820 Jun 2008

Conference

ConferenceInternational Conference on Radioecology and Environmental Radioactivity
CountryNorway
CityBergen
Period2008-06-152008-06-20

Keywords

  • Arabidopsis thaliana, oxidative stress, uranium toxicity

ID: 257349