Abstract
The present study was conducted to determine the effects of putrescine (Put) and spermine (Spm) on cucumber plant growth. The low concentration of Put and Spm (0.02, 0.1 and 0.5 mM) was applied to cucumber seedlings. Put and Spm treatments reduced the length and fresh weight of shoots, leaf area, fresh and dry weight of leaves compared to their controls. The enhancement of electrical conductivity and lipid peroxidation was shown in cucumber plants exposed with Put and Spm. However, plants treated with Put and Spm showed low concentration of polyphenol contents with declined level of catalase and peroxidase activity than their controls. These results suggest that application of low concentrations of Put and Spm exhibit detrimental effects on plant growth through the enhanced level of lipid peroxidation and reduction of antioxidants activities.
| Original language | English |
|---|---|
| Pages (from-to) | 247-251 |
| Number of pages | 5 |
| Journal | Journal of Environmental Biology |
| Volume | 35 |
| Issue number | 1 |
| State | Published - Jan 2014 |
Keywords
- Antioxidants
- Cucumber
- Putrescine
- Spermine
- Toxicity