摘要
以洋桔梗切花品种"702"为材料,研究了切花采后生理生化指标的变化规律。结果表明:鲜重、可溶性蛋白质、可溶性糖、呼吸速率、超氧化物歧化酶活性(SOD)、过氧化氢酶(CAT)活性前期上升后期下降,相对电导率和过氧化物酶(POD)活性均表现为上升趋势。保护酶系统活性下降,膜质过氧化等造成细胞膜损伤是启动洋桔梗切花衰老的生理原因之一。
Cut flowers of Eustoma grandiforum cultivars＂702＂ were used to determine the physiological and biochemical changes taking place in the flowers kept in vase.The results showed that the fresh weight,soluble proteins,soluble sugar,respiration rate,as well as SOD and CAT activities in the flower petals increased in the early stage and decreased later on.On the other hand,the relative electric conductivity and POD activity increased while being held in a vase.Damage on the cell membrane resulted from the decreased protective enzymes activity and membrane lipid peroxidation might induce senescence on the cut-flowers.
出处
《福建农业学报》
CAS
2011年第5期788-792,共5页
Fujian Journal of Agricultural Sciences
基金
云南省教育厅科研项目(09Y0500)
云南省玉溪农业职业技术学院学术带头人项目
关键词
洋桔梗
切花
可溶性蛋白质
呼吸速率
相对电导率
保护酶活性
Eustoma grandiforum
cut-flower
soluble protein
respiration rate
relative electric conductivity
protective enzymes activity
