东方百合鳞片生小鳞茎生长过程中的激素变化  

Variation of Endogenous Phytohormones of Lilium oriental 'Sorbonne' during Scale Propagation

作　　者：安丽萍[1] 谢忠奎[1] 李翊华[2] 安黎哲[1,3] 张亚娟[1] 

机构地区：[1]中国科学院寒区旱区环境与工程研究所,甘肃兰州730000 [2]河西学院农学系,甘肃张掖734000 [3]兰州大学生命科学学院,甘肃兰州730000

出　　处：《中国沙漠》2012年第3期705-708,共4页Journal of Desert Research

基　　金：科技部农业成果转化项目(2011GB24910003);中国科学院重要方向性项目(KSCX2-EW-B-1-8)资助

摘　　要：应用高效液相色谱仪测定东方百合"索蚌"鳞片繁殖小鳞茎过程中,母鳞片、小鳞茎和新生根中4种内源激素赤霉素(GA3)、生长素(IAA)、脱落酸(ABA)和玉米素(ZT)的变化。结果发现,小鳞茎形成过程中,4种内源激素中ZT和GA3在母鳞片中含量最高,IAA在新生根中含量最高,ABA在小鳞茎中含量最高。同时,母鳞片和小鳞茎中ZT、GA3、ABA和IAA都呈现不同幅度的上升趋势。小鳞茎形成过程中,母鳞片中的4种激素中的ZT的净增长率最高为109%;小鳞茎的4种激素中IAA的净增长率最高,为102%;在新生根中,除了ABA其他3种激素都呈现上升趋势,其中ZT的净增长率最高,为493%。Variations of contents of endogenous hormones, namely Gibberellin （GA3）, Indoleacetic Acid （IAA）, Abscisic Acid（ABA） and Zeatin （ZT）, in scales, bulblets and new roots of Lilium oriental Sor- bonne during scale propagation process were analyzed using high-performance liquid chromatography. Re- sults show that the four endogenous hormones have distinct distribution in scales, bulblets and new roots during bulblet formation and growth process： ZT and GA3 concentrations are higher in scales than in bulblets and new roots; IAA concentration is higher in new roots than in scales and bulblets; ABA concentration is the highest in bulblets. All the four hormones have increasing trends in scales and bulblets with different in- crease rate during scale propagation. The net increasing rate of ZT concentration in scales is 109 %, which is the highest among the four hormones. IAA concentration has a net increasing rate of 102 % in bulblets. The hormones except ABA are in increasing trends in new roots, and the increasing rate of ZT concentration is the highest, by 493 %.

关 键 词：东方百合 鳞片繁殖 小鳞茎 脱落酸 玉米素 生长素 赤霉素 

分 类 号：Q946.885[生物学—植物学]