萘乙酸处理桉树插条后过氧化物酶活性及其同工酶变化与插条生根的关系研究  

STUDY ON THE RELATIONSHIP BETWEEN THE CHANGES OF ACTIVITIES AND ISOENZYMES OF PEROXIDASE AND THE ROOTING OF EUCALYPTUS CUTTINGS AFTER TREATMENT WITH NAPHTHYLACETIC ACID

作　　者：黄卓烈[1] 李明[2] 谭绍满[3] 林绍湘[1] 龙腾[4] 

机构地区：[1]华南农业大学生命科学学院,广州510642 [2]兰州大学干旱农业生态国家重点实验室,兰州730000 [3]华南农业大学林学院,广州510642 [4]国家林业局雷州林科所,湛江524348

出　　处：《植物研究》2002年第3期296-300,共5页Bulletin of Botanical Research

基　　金：广东省重点攻关项目 (99M0 42 0 1G);雷州林业局资助项目

摘　　要：尾叶桉MLA无性系 (简称MLA)为难生根植物 ,尾叶桉U6无性系 (简称U6)和刚果 1 2号桉W5无性系 (简称W5)为相对易生根植物。MLA的插条内的过氧化物酶 (POD)活性较U6、W5的高。用萘乙酸 (NAA)处理桉树的插条后 ,在扦插生根的不同阶段 ,插条内的POD活性呈现规律性的变化。POD同工酶谱带也随生根的进程出现增多现象。Eucalyptus urophylla S.T. Blade MLA clone(MLA)was difficult-to-root species. E.urophylla S.T. Blade U 6 clone(U 6)and E . ABL 12 W 5 clone(W 5)were relatively easy-to-root species.The activities of peroxidase (POD) in MLA were higher than that in U 6 and W 5. After the cuttings of Eucalyptus were treated with naphthylacetic acid (NAA), the activities of POD increased regularly in different stages of rooting. The relationship between peroxidase and rooting of Eucalyptus cuttings was discussed.

关 键 词：萘乙酸处理 桉树插条 过氧化物酶活性 同工酶变化 插条生根 

分 类 号：S792.39[农业科学—林木遗传育种]