Type

Journal Article

Authors

Sebastian Riedel
Stephen Smith
Philip J. Dix
Greg Doyle
Renee P. Malone
Norman McMillan
Deborah Vicuna
Philippe Pringuet

Subjects

Biology

Topics
plants engineering design physical sciences and mathematics reactive oxygen species cell wall biology tobacco numerical model peroxidase tensiotraces rast model drophad engineering physical properties free radicals hydrogen peroxide

Increased Tolerance to Abiotic Stresses in Tobacco Plants Expressing a Barley Cell Wall Peroxidase (2011)

Abstract This study aimed to explore the prospects for enhancing abiotic stress tolerance through expression of a cell wall-targeted peroxidase in transgenic plants. Abiotic stresses result in the production of several Reactive Oxygen Species (ROS), including hydrogen peroxide (H2O2), in higher plants. H2O2 is highly diffusible and has a stress signalling role, but is also the source, through Fenton reactions, of highly destructive hydroxyl free radicals. Type III peroxidases, a family of heme-containing proteins which oxidise a range of substrates using H2O2 as oxidant, are capable of depleting H2O2 levels in several cellular compartments and specific peroxidases have been linked to stress defences. In the present study, we demonstrate expression of a pathogen-induced apoplastic barley peroxidase in transgenic tobacco plants and show that it confers improved tolerance to several abiotic stresses, including high and low temperatures, salinity, metal ion and osmotic stress.
Collections Ireland -> Maynooth University -> Academic Unit = Faculty of Science and Engineering: Biology
Ireland -> Maynooth University -> Type = Article
Ireland -> TU Dublin -> School of Physics & Clinical & Optometric Science
Ireland -> TU Dublin -> Colleges
Ireland -> TU Dublin -> College of Sciences and Health
Ireland -> Maynooth University -> Status = Published
Ireland -> TU Dublin -> Articles

Full list of authors on original publication

Sebastian Riedel, Stephen Smith, Philip J. Dix, Greg Doyle, Renee P. Malone, Norman McMillan, Deborah Vicuna, Philippe Pringuet

Experts in our system

1
Stephen Smith
Trinity College Dublin
Total Publications: 27
 
2
Philip Dix
Maynooth University
Total Publications: 57