摘要
两个郁金香品种在开花后随着可溶性蛋白质含量下降，细胞内超氧化物歧化酶（ＳＯＤ）、过氧化氢酶（ＣＡＴ）和过氧化物酶（ＰＯＤ）３种保护酶活性也随之下降，同时发生过氧化产物丙二醛（ＭＤＡ）的迅速累积；并且３种保护酶活性下降与ＭＤＡ含量的增加呈明显负相关。两品种之间变化趋势基本相同。
Changes in MDA and soluble protein content and activity of superoxide dismutase (SOD),catalase (CAT),and peroxidase (POD) in flowers of two varieties of Tulipa gesneriana L.during flower senescence were investigated.The results showed that activity of SOD,CAT or POD decreased and content of MDA increased rapidly in them during flower senescence when content of soluble protein reduced.And the cecrease of SOD,CAT,POD activities correlated negatively with the increase of MDA content.The data also indicated that changes between two varieties of Tulipa gesneriana L.was similar.
出处
《西北植物学报》
CAS
CSCD
1998年第4期561-565,共5页
Acta Botanica Boreali-Occidentalia Sinica
基金
陕西省科学院资助课题
关键词
郁金香
衰老
保护酶
MDA
Tulipa gesneriana L.senescence,protective enzymes,MDA
