Article
Oxidative stress provokes distinct transcriptional responses in the stress-tolerant atr7 and stress-sensitive loh2 Arabidopsis thaliana mutants as revealed by multi-parallel quantitative real-time PCR analysis of ROS marker and antioxidant genes.
Plant physiology and biochemistry : PPB - 1 Oct 2012
Mehterov Nikolay, Balazadeh Salma, Hille Jacques, Toneva Valentina, Mueller-Roeber Bernd, Gechev Tsanko
Abstract excerpt
The Arabidopsis thaliana atr7 mutant is tolerant to oxidative stress induced by paraquat (PQ) or the catalase inhibitor aminotriazole (AT), while its original background loh2 and wild-type plants are sensitive. Both, AT and PQ, which stimulate the intracellular formation of H₂O₂ or superoxide anions, respectively, trigger cell death in loh2 but do not lead to visible damage in atr7. To study gene expression...
Topics
- Amitrole
- Antioxidants
- Arabidopsis
- Arabidopsis Proteins
- Biomass
- Cell Death
- Chlorophyll
- DNA, Plant
- Gene Expression Regulation, Plant
- Glutathione