自然科学版
陕西师范大学学报(自然科学版)
生命科学
茶树花芽分化解剖与形态学研究
施雁飞1, 游新才2, 张逸1, 吕天航1, 张今今1*
(1 陕西师范大学 生命科学学院,秦巴山区可持续发展协同创新中心,陕西 西安 710119;2 陕西省紫阳县茶叶研究所, 陕西 紫阳 725300)
施雁飞,女,硕士研究生,研究方向为植物分子遗传学。E-mail: yanfei2051@126.com
摘要:
以陕西地方茶树紫阳群体种中的代表性种质‘紫阳槠叶种’为材料,采用石蜡切片法对花芽形成和分化过程进行解剖观察。结果表明:‘紫阳槠叶种’花芽分化始于5月中旬,至6月下旬结束,10月中旬达到盛花期;花芽分化过程可分为:花芽分化初期、萼片原基形成期、花瓣原基形成期、雄蕊原基形成期和雌蕊原基形成期等五个时期。
关键词:
茶树; 花芽分化; 解剖结构
收稿日期:
2014-09-20
中图分类号:
Q944-33
文献标识码:
A
文章编号:
1672-4291(2015)02-0070-04doi:10.15983/j.cnki.jsnu.2015.02.326
基金项目:
陕西省自然基础研究计划项目(2014JM3075);中央高校基本科研业务费专项资金项目(GK201503048);2014年大学生创新创业训练计划项目(cx14063)
Doi:
Anatomy and morphological observation on flower bud differentiation of Camellia Sinensis
SHI Yanfei1, YOU Xincai2, ZHANG Yi1, LYU Tianghang1, ZHANG Jinjin1*
(1 School of Life Sciences, Co-Innovation Center for Qinba Regions Sustainable Development,Shaanxi Normal University, Xi′an 710119, Shaanxi, China; 2 Ziyang Tea Research Station, Ziyang 725300, Shaanxi, China)
Abstract:
The early development of the flower of Camellia Sinensis was described from initiation to the formation of the flower bud. The morphogenesis and growth rate of floral organs were recorded in detail using paraffin sectioning. The time of flower bud differentiation concentrates on the end of May to the end of June, until mid-October, a large number of flower buds reaches into the flowering stage in Ziyang, Shaanxi. Flower bud development could be divided into early stage of differentiation, formative stage of sepal primordium, formative stage of petal primordium, formative stage of stamen primordium and formative stage of pistil primordium.The five stages include a series of landmark events. After the process of flower bud differentiation it enters into the development of floral organ.
KeyWords:
Camellia Sinensis; flower bud differentiation; external morphology