摘要
通过测定铅(Pb)胁迫下胜利油菜种子活力、幼苗质膜的渗透性、脯氨酸和丙二醛(MDA)含量及过氧化物酶(POD)和超氧化物歧化酶(SOD)活性变化,探讨铅胁迫对油菜生理的影响。结果表明,种子活力随铅浓度的提高而降低,质膜透性、脯氨酸含量和MDA含量则与之相反;在一定限度内,POD和SOD的活性随铅浓度的提高而提高。
To explore the physiological effect of lead （Pb） stress on rape （Brassica napus L. ）, the seed viability, membrane permeability, the content of proline and malondialdehyde （MDA） ,and changes in the activity of antioxidant enzymes such as peroxidase （POD） and superoxide dismutase （SOD） in the seedlings were investigated. The results showed the seed viability reduced and membrane permeability, contents of proline and malondialdehyde （MDA） increased with increasing Pb concentration. The activity of POD and SOD was enhanced with increasing Pb concentration to a certain extent.
出处
《西南农业学报》
CSCD
北大核心
2010年第2期605-607,共3页
Southwest China Journal of Agricultural Sciences
基金
红河学院科研基金项目"植物对高温和盐胁迫的生理应答"(XJIY0805)
关键词
油菜
铅胁迫
种子活力
抗氧化剂
脯氨酸
丙二醛
Rape （Brassica napus L. ）
Pb stress
Seed viability
Antioxidant
Proline
Malondialdehyde （MDA）
