摘要
土培试验研究了铜胁迫对苋菜幼苗生长和抗氧化酶活性的影响。结果表明，1．0mmol／kg以上浓度铜处理明显抑制茎和根的伸长，降低干物质积累，但增加了成熟叶的干重（1．0—2．0mmol／kg）；显著增加成熟叶SOD和POD活性，降低CAT活性，并伴随MDA含量和细胞电解质渗漏增加。
This experiment investigated the effects of copper stress on the growth and antioxidant enzymes activities in Amaranthus tricolor seedlings. The results showed that Cu stress （ 〉 1.0 mmol/kg） significantly inhibited elongation of stem and root and reduced biomass accumulation, but increased dry weights of mature leaves （1.0- 2.0 Cu mmol/kg）. Copper stress significantly increased the activities of SOD and POD in mature leaves, but decreased CAT activities. It in- creased malondialdehyde contents and electrolyte leakage under the condition of adding 〉 1.0 Cu mmol/kg.
出处
《浙江农业学报》
CSCD
2008年第1期54-58,共5页
Acta Agriculturae Zhejiangensis
基金
浙江省自然科学基金资助项目(Y504256)
关键词
铜胁迫
生长
抗氧化酶活性
苋菜
copper （Cu） stress
growth
antioxidant enzyme activity
Amaranthus tricolor L.
