2种桉属树种插条中酚类物质及相关酶活性差异研究  

Differences in Phenolic Compounds and Related Enzyme Activities between 2 Eucalyptus Species

作　　者：姚瑞玲[1] 项东云[1] 陈健波[1] 梁小春[2] 

机构地区：[1]广西林业科学研究院,广西南宁530002 [2]广西大学林学院,广西南宁530004

出　　处：《安徽农业科学》2010年第32期18198-18199,18201,共3页Journal of Anhui Agricultural Sciences

基　　金：国家"948"项目(2006-4-66);广西林科院业务费资助项目(林科200902)

摘　　要：[目的]为加快邓恩桉的推广提供理论基础。[方法]以邓恩桉(Eucalyptus dunnii)和尾巨桉无性系U9(E.urophylla×E.Grandis.U9)为试材,研究了2种桉属树种插条中的酚类物质以及相关酶活性的差异。[结果]2种桉属树种插条中的酚类物质含量及吲哚乙酸氧化酶(IAAO)、过氧化物酶(POD)和多酚氧化酶(PPO)的活性差异显著。与U9相比,邓恩桉插条中酚类物质含量及POD活性较高,而IAAO、PPO活性较低。[结论]插条中较高含量的酚类物质及相关氧化酶活性差异可能是导致邓恩桉扦插生根困难的重要因素。[Objective] The aim was to provide theoretical basis for speeding up the popularization of Eucalyptus dunnii.[Method] Differences in phenolic compounds and related enzyme activities between hard rooting Eucalyptus dunnii and easily rooting E.urophylla×E.grandis clone（U9） were studied.[Result] There were significant differences in contents of phenolic compounds and activities of indole acetic acid oxidase（IAAO）,andperoxidase（POD） and polyphenol oxidase（PPO） between the 2 Eucalyptus species.Compared with U9,contents of phenolic compounds and POD activity of Eucalyptus dunnii cuttings were relatively high,while activities of IAAO and PPO were relatively low.[Conclusion] More phenolic compounds and differences in related enzyme activities might be the major factors to result in hard rooting of E.dunnii cutting.

关 键 词：邓恩桉 酚类物质 酶活性 

分 类 号：S792.39[农业科学—林木遗传育种]