ZHAO Meng,WU Shupeng,QIAO Yaomei,et al.Anatomical Study on the Development of Ovaries and Anthers of Seedless Crataegus pinnatifide[J].Northern Horticulture,2018,42(09):36-42.[doi:10.11937/bfyy.20174418]
无籽山楂子房和花药发育过程的解剖学研究
- Title:
- Anatomical Study on the Development of Ovaries and Anthers of Seedless Crataegus pinnatifide
- 文献标志码:
- A
- 摘要:
- 以普通山楂和无籽山楂为试材，分别采用石蜡切片技术和半薄切片技术对子房和花药的不同发育时期进行制片观察，利用体视显微镜对无籽山楂和普通山楂的子房、花药及果实拍照观察探索无籽山楂繁殖器官的特点，主要对无籽山楂和普通山楂的子房、花药及果实等结构的发育情况进行对比研究，旨在探索无籽山楂果实发育的过程。结果表明：无籽山楂的花瓣、花药、子房及果实均比普通山楂小。普通山楂含有较多有活力的小孢子，发育过程中绒毡层细胞降解正常；而无籽山楂的单核小孢子大多数空泡化，绒毡层降解异常。无籽山楂大部分胚珠在发育过程中败育，仅有珠被发育为种皮。
- Abstract:
- The development of ovaries，anthers and fruits of seedless hawthorn and ordinary hawthorn were carried out in this study and it aimed to explore the growth of the fruits of seedless hawthorn.The ovaries and anthers in different stages were sectioned with the metheds of paraffin section and semithin section technology and their structures were observed by optical microscopy.The whole structures of ovaries，anthers and fruits were observed by stereomicroscope to explore the characteristics of the reproductive organs of seedless hawthorn.The results showed that the petals，anthers，ovaries and fruits of seedless hawthorn were smaller than ordinary hawthorn.The common hawthorn contained more active microspores，and the tapetum cells degrade normally in the process of development，while most germ cells of the seedless hawthorn were vacuolization and the tapetum cells degrade anomaly.Most of the ovules of seedless hawthorn get aborted in the process of development，only the bead was developed as seed coat.
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备注/Memo
第一作者简介：赵猛（1980-），男，博士，副教授，现主要从事结构植物学等研究工作。E-mail：zhaomeng@sxnu.edu.cn.基金项目：国家自然科学基金资助项目（31300157，31401435，41571499，31300180）。收稿日期：2018-02-23