| ‘天香台阁’桂花花芽分化及其台阁形成过程的观察 |
| |
| 引用本文： | 朱倩,董美芳,袁王俊,孙宝军,尚富德.‘天香台阁’桂花花芽分化及其台阁形成过程的观察[J].园艺学报,2012,39(2):315-322. |
| |
| 作者姓名： | 朱倩 董美芳 袁王俊 孙宝军 尚富德 |
| |
| 作者单位： | 河南大学生命科学学院，植物逆境生物学重点实验室，河南开封 475001 |
| |
| 基金项目： | 国家自然科学基金项目，河南省杰出青年基金项目，河南省高校青年骨干教师项目(2009GGJS_152)致谢:试验材料的全程采集得到了金华市华安桂花研究所鲍志贤先生的支持与帮助;在此表示衷心感谢! |
| |
| 摘 要： | 采用石蜡切片方法观察桂花四季桂品种群的‘天香台阁’（Osmanthus fragrans‘Tianxiang Taige’）花芽分化的过程。研究表明，‘天香台阁’具3种不同的花芽，即普通花芽、特殊花芽、叶状花的台阁花芽。普通花芽和特殊花芽形态分化相同，分为总苞分化期、花原基分化期、顶花花被分化期、雄蕊分化期及雌蕊分化期共5个时期，历时约5个月；而叶状花的台阁花芽除了这5个时期，最后还经历台阁形成期，共历时约6个月。3种花芽雌蕊均发育异常，台阁花芽中本应着生雌蕊的部位分化为枝条。
|
| 关 键 词： | 桂花 花芽 形态分化 |
| 收稿时间： | 2011-09-29 |
Studies on Flower Bud Differentiation and Leaflike Proliferate-flower Bud of Osmanthus fragrans ＇Tianxiang Taige＇ |
| |
| ZHU Qian,DONG Mei-fang,YUAN Wang-jun,SUN Bao-jun,and SHANG Fu-de.Studies on Flower Bud Differentiation and Leaflike Proliferate-flower Bud of Osmanthus fragrans ＇Tianxiang Taige＇[J].Acta Horticulturae Sinica,2012,39(2):315-322. |
| |
| Authors: | ZHU Qian DONG Mei-fang YUAN Wang-jun SUN Bao-jun and SHANG Fu-de |
| |
| Institution: | College of Life Sciences，Key Lab of Plant Stress Biology，Henan University，Kaifeng，Henan 475001，China |
| |
| Abstract: | The paraffin method was used to study the process of floral-bud differentiation in Osmanthus fragran’sTianxiang Taige’.The results show that three different types of flower buds,normal flower bud,special flower bud,and leaflike proliferate-flower bud,were founded in O.fragrans ’Tianxiang Taige’.The normal and special flower buds shared a common 5-stage morphological differentiation process that was about 6 months.The stages inclued involucrum differentiation,flower primordium differentiation,top flower perianth differentiation,stamen differentiation and pistil differentiation.The pistils degenerated in all three different types of flower buds.The proliferate-flower bud produced atrophied pistils,which were replaced by meristems that eventually differentiated into leaves and branches. |
| |
| Keywords: | Osmanthus fragrans floral-bud morphological differentiation |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
| 点击此处可从《园艺学报》浏览原始摘要信息 |
| 点击此处可从《园艺学报》下载免费的PDF全文 |
