| Cu~(2+)、Cd~(2+)胁迫对番茄幼苗生长及过氧化物酶活性的影响(英文) |
| |
| 作者单位： | ZHAO Ying-chun Department of Landscape Architecture and Horticulture，Yangzhou Vocational College of Environment and Resources，Yangzhou 225127 |
| |
| 摘 要： | The growth situation and peroxidase (POD) of seedlings of two tomato cultivars were investigated under the stress of different concentrations of Cu2+ and Cd2+. The toxicity differences of Cu2+ and Cd2+ to tomato seedlings and the corresponding differences between two tomato cultivars were observed through the stress trial with the above two heavy metal ions. The results showed that low concentration of Cu2+ and Cd2+ could promote the growth and could enhance the POD activity of tomato seedlings,while high concentration Cu2+ and Cd2+ could inhibit seedling growth and POD activity of tomato seedlings. Cd2+ functioned more obviously than that of Cu2+,two tomato cultivars also presented difference in response to heavy metal stress.
|
Effects of Cu~(2+) and Cd~(2+) Stress on Growth and POD Activity of Tomato Seedling |
| |
| Authors: | ZHAO Ying-chun |
| |
| Institution: | ZHAO Ying-chun Department of Landscape Architecture and Horticulture,Yangzhou Vocational College of Environment and Resources,Yangzhou 225127 |
| |
| Abstract: | The growth situation and peroxidase (POD) of seedlings of two tomato cultivars were investigated under the stress of different concentrations of Cu2+ and Cd2+. The toxicity differences of Cu2+ and Cd2+ to tomato seedlings and the corresponding differences between two tomato cultivars were observed through the stress trial with the above two heavy metal ions. The results showed that low concentration of Cu2+ and Cd2+ could promote the growth and could enhance the POD activity of tomato seedlings,while high concentration Cu2+ and Cd2+ could inhibit seedling growth and POD activity of tomato seedlings. Cd2+ functioned more obviously than that of Cu2+,two tomato cultivars also presented difference in response to heavy metal stress. |
| |
| Keywords: | Cu2+ Cd2+ Tomato seedling POD |
| 本文献已被 CNKI 等数据库收录！ |
