Journal
JOURNAL OF PLANT NUTRITION
Volume 34, Issue 9-11, Pages 1616-1624Publisher
TAYLOR & FRANCIS INC
DOI: 10.1080/01904167.2011.592559
Keywords
sunflower; cadmium; oxidative stress; lipid peroxidation; threshold values
Categories
Ask authors/readers for more resources
The phytotoxicity imposed by cadmium (Cd) in sunflower was investigated on biomass, Cd accumulation, superoxide and lipid peroxidation product as well as the activities of superoxide dismutase, catalase and peroxidase. Plants accumulate substantial amount of Cd in different parts, the maximum being in roots, i.e., up to 820 mu g g(-1) dry matter. Cadmium induced oxidative stress, indicated by increase in lipid peroxidation and superoxide content with increase in metal supply. Under Cd stress, the activities of superoxide dismutase and catalase declined to a greater extent in roots than in leaves. Even though the peroxidase activity increased in leaves, a decreasing trend was observed in root due to Cd stress. The threshold of toxicity (10% growth reduction) and toxicity (33% growth reduction) values of Cd in sunflower were 14 and 72 mu g g(-1) in leaves, 19 and 90 mu g g(-1) in stem and 65 and 250 mu g g(-1) Cd in roots, respectively.
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