Dynamic Changes in Endogenous Hormones in Rhododen- dron simsii Floral Organs

作     者：Zhiliang LI Ruixue JIANG Lang JIN Lu XU Mingju ZHANG Shuzhen WANG 

作者机构：Hubei Collaborative Innovation Center for the Characteristic Resources Exploitation of Dabie Mountains/Hubei Key Laboratory of Economic Forest Germplasm Improvement and Resource Comprehensive Utilization/College of Life Science Huanggang Normal University Huanggang 438000 China 

出 版 物：《Agricultural Biotechnology》 (农业生物技术（英文版）)

年 卷 期：2016年第5卷第5期

页      面：19-21页

学科分类：090706[农学-园林植物与观赏园艺] 0907[农学-林学] 09[农学] 

基　　金：Supported by the Scientific and Technological Research Program of Department of Science and Technology of Hubei Province(Q20152903) 

主　　题：Rhododendron simsii Planch Floral organ Hormone Flowering trait 

摘      要：This study was conducted to investigate the dynamic changes of several hormones in Rhododendron simsii floral organs to provide theoretical basis for controlling its flowering period. A R. simsii variety ＂Purple Crane＂ was selected as the experimental material, and its flower organs were sampled at nine floral developmental stages to measure the contents of gibberellic acid-3 （GA3 ）, abscisic acid （ABA）, indole-3-acetic acid （IAA）, and zeatin riboside （ZR） through enzyme-linked immunosorbent assay （ELISA）. The results showed that the content of ZR was highest at full flowering stage; IAA and GA3 contents were higher than other stages in the process of flower bud differentiation and flowering. ABA played an important role in the regulation of flower bud formation. The results will provide theoretical references for exploring the regulation of plant hormones towards Rhododendron flower traits and breeding new varieties.