Journal
BIOLOGIA PLANTARUM
Volume 56, Issue 1, Pages 89-96Publisher
SPRINGER
DOI: 10.1007/s10535-012-0021-6
Keywords
aluminum toxicity; APX; CAT; DPPH; FRAP; GPS; GR; oxidative stress; POD; SOD; Triticum aestivum
Categories
Funding
- National Basic Research Program of China (the 973 Program) [2007CB109305]
- National Natural Science Foundation of China [30771292, 30900920, 30270784]
- Foundation for the University Ph.D.-Granting Discipline of the Ministry of Education [20060335014]
- IPNI
Ask authors/readers for more resources
The present study investigated the effects of aluminum on lipid peroxidation, accumulation of reactive oxygen species and antioxidative defense systems in root tips of wheat (Triticum aestivum L.) seedlings. Exposure to 30 mu M Al increased contents of malondialdehyde, H2O2, suproxide radical and Evans blue uptake in both genotypes, with increases being greater in Al-sensitive genotype Yangmai-5 than in Al-tolerant genotype Jian-864. In addition, Al treatment increased the activity of superoxide dismutase (SOD), peroxidase (POD), catalase (CAT), ascorbate peroxidase (APX), monodehydroascorbate reductase (MDHAR), glutathione reductase (GR) and glutathione peroxidase (GPX), as well as the contents of ascorbate (AsA) and glutathione (GSH) in both genotypes. The increased activities SOD and POD were greater in Yangmai-5 than in Jian-864, whereas the opposite was true for the activities of CAT, APX, MDHAR, GR and GPX and the contents of AsA and GSH. Consequently, the antioxidant capacity in terms of 2,2-diphenyl-1-picrylhydrazyl (DPPH)-radical scavenging activity and ferric reducing/antioxidant power (FRAP) was greater in Jian-864 than in Yangmai-5.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available