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摘要 在照光和黑暗条件下研究了不同浓度的6-BA和GA+6-BA混合剂处理对油茶离体叶片衰老的影响.结果表明,在光条件下6-BA可以保持叶片细胞的超氧歧化酶(SOD)活性(为对照的129%),降低了膜脂过氧化产物丙二醛(MDA)的积累(为对照的47%),延缓叶绿素和蛋白质的降解.说明6-BA有延缓叶片衰老的作用,在黑暗条件下上述生理指标的水平较低,表明光对6-BA的作用有一定的增益效应.GA+6-BA混合剂处理没有明显效果.
关键词 6-苄氨基嘌呤;油茶叶片;延缓衰老
中图分类号 S794.401Delayed Action of 6-BA on Detached-leaves
Senescence in Camellia oleiferaHu ZhesenResources & Environment Department,Fujian College of Forestry,Nanping,Fujian 353001ABSTRACT Experiments were carried out to study the effect of different concentration 6-BA solutions and 6-BA-GA mixtures on detached-leaves senescence of Camellia oleifera under illumination and dark,the results indicated that:under illumination,6-BA