带叶兜兰成花过程中叶片内源激素与多胺含量的变化动态  

Dynamic Changes of Endogenous Hormones and Polyamine in Paphiopedilum hirsutissimum Leaves During Floral Bud Formation

作　　者：李秀玲[1] 范继征[1] 廖宏英 何荆洲[1] 曾艳华[1] 龙蔷宇 卜朝阳[1] LI Xiuling;FAN Jizheng;LIAO Hongying;HE Jingzhou;ZENG Yanhua;LONG Qiangyu;BU Zhaoyang(Flower Research Institute,Guangxi Academy of Agricultural Sciences,Nanning,Guangxi 530007,China;College of Agriculture,Guangxi University,Nanning,Guangxi 530004,China)

机构地区：[1]广西农业科学院花卉研究所,广西南宁530007 [2]广西大学农学院,广西南宁530004

出　　处：《热带作物学报》2021年第11期3236-3241,共6页Chinese Journal of Tropical Crops

基　　金：广西自然科学基金项目(No.2020GXNSFBA297136);广西农业科学院基本科研业务专项(桂农科2021JM116、桂农科2021JM28、桂农科2021YT131)。

摘　　要：近些年兜兰产业发展迅速,但花期调控难成为限制兜兰产业发展的瓶颈。以带叶兜兰为试验材料,采用高效液相色谱分析的方法,研究带叶兜兰开花期间叶片中内源激素及多胺含量的变化规律,分析内源激素及多胺对其开花的影响。结果表明,高水平的ZT、IAA、GA_(3)、多胺含量和GA_(3)/IAA比值有利于带叶兜兰花芽分化;带叶兜兰花朵形态建成需要更高水平的ZT、IAA、GA_(3)、多胺含量和Spd/Put、Spm/Put比值;带叶兜兰叶片GA_(3)具有调控IAA水平和Put水平的作用,多胺和激素之间存在密切的关系。The Paphiopedilum orchid industry has developed rapidly recently.However,flowering regulation has become the bottleneck restricting the development of the industry.P.hirsutissimum,which is easy to bloom,was used as the experiment materials,the content changes of endogenous hormones and polyamine in functional leaves were detected by high performance liquid chromatography(HPLC)to provide a theoretical basis for the flowering regulation of the orchids.High content of ZT,IAA,GA_(3),PAs and high ratio of GA_(3)/IAA in leaves were beneficial to inducing the bud differentiation.Higher content of ZT,IAA,GA_(3),PAs and high ratio of Spd/Put,Spm/Put in leaves were beneficial to floral morphological differentiation.GA_(3) could regulate IAA and Put levels,there was a close relationship between polyamines and hormones.

关 键 词：带叶兜兰 叶片 内源激素 多胺 开花 

分 类 号：S682.31[农业科学—观赏园艺]