吲哚丁酸对石楠组培苗多酚氧化酶的影响及其与生根的关系

Study on the Relationship between the Changes of Activities and Isoenzymes of Polyphenol Oxidase and the Rooting of Ph.serrulata in Vitro after Treatment with Indolebutyric Acid

紫叶石楠为难生根植物,红罗宾和红唇比较容易生根.紫叶石楠组培苗内的PPO活性比红罗宾、红唇的低.用吲哚丁酸(IBA)处理石楠组培苗后,在生根的不同阶段,组培苗内的PPO活性呈现规律性变化.蛋白质含量呈上升趋势.文章讨论了多酚氧化酶与石楠组培苗生根的关系.

Photinia frasery and Red Robin in Vitro are plants whose rootings were difficult.Red Tip is a relatively easy-to-root plant.The activity of polyphenol oxidase （ PPO ） in Photinia frasery and Red Robin is lower than that of in Red Tip.Afer Ph.serrulatas in vitro were treated with indolebutyric acid （ IBA ）, the activities of PPO and the content of protein increased regularly in different stages of rooting.The relationship between PPO and rooting of Ph. serrulatas in vitro was discussed.