马蹄莲采后衰老生理特性的研究

Study on Physiological Characteristics on Senescence of Postharvest Zantedeschia

以马蹄莲切花为试材,研究瓶插期间衰老生理变化(主要为活性氧代谢)。结果表明:马蹄莲鲜切花瓶插寿命约为7 d;瓶插前2 d马蹄莲切花花瓣超氧化物歧化酶(SOD)、过氧化氢酶(CAT)活性略有上升,第3天后,加蔗糖致使花瓣SOD、CAT活性总体水平要高于对照(蒸馏水处理)。瓶插期间花瓣过氧化物酶(POD)活性及丙二醛(MDA)含量均呈上升趋势,但可溶性蛋白质含量持续下降。

Taking Zantedeschia cutting flower as material, we had researched for senescent physiology in vase life （mainly active oxygen metabolism）. The results showed that calla cutting flower vase life was about seven days, and superoxide dismutase （SOD）, catalase （CAT） activity increased slightly in petal during first two days,and SOD,CAT activities were increased by sugar in 3 th day （distilled water as eontroll）. During vase arrangement,petal peroxidase （POD） activity and malondialdehyde （MDA） content increased continually,but soluble protein content continued decreased.