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植物研究 ›› 2000, Vol. 20 ›› Issue (4): 385-388.

• 论文 • 上一篇    下一篇

单性木兰花粉壁超微结构的研究

席以珍1, 张玉龙1, 林祁1, 曾庆文2   

  1. 1. 中国科学院植物研究所, 北京 100093;
    2. 中国科学院华南植物研究所, 广州 510650
  • 收稿日期:2000-05-14 出版日期:2000-12-15 发布日期:2016-06-14
  • 作者简介:席以珍(1935-),女,研究员,孢粉学。
  • 基金资助:
    中国科学院重大项目B(KZ951-B1-102)基金和国家自然科学基金(39470053)资助项目

A STUDY OF POLLEN WALL ULTRASTRUCTURE OF KMERIA SEPTENTRIONALIS

XI Yi-Zhen1, ZHANG Yu-Long1, LIN Qi1, ZENG Qing-Wen2   

  1. 1. Institute of Botany, Chinese Academy of Sciences, Beijing 100093;
    2. South China Institute of Botany, Chinese Academy of Sciences, Guangzhou 510650
  • Received:2000-05-14 Online:2000-12-15 Published:2016-06-14
  • Supported by:
    CAS Key project B "Studies on evolutionary biology of some important endangered plant species"(KZ951-B1-102) and the project supported by national natural science foundation of China (39470053)

摘要: 本文首次报道单性木兰花粉的形态特征和外壁超微结构。花粉外部形态与木兰科各属特征一致,表明单性木兰花粉的原始性。但花粉外壁超微结构显示其外壁表面具皱波状纹饰;覆盖层波浪状,具稀疏的小穿孔;柱状层很薄,小柱典型,直立,短而细。外壁超微结构表明单性木兰属在木兰亚族中是一个较进化的属。扫描电镜和透射电镜资料揭示出单性木兰在植物分类系统中的特殊地位和重要学术价值。

关键词: 单性木兰, 花粉形态, 超微结构

Abstract: The pollen morphology and the wall ultrastructure of Kmeria septentrionalis are first reported in this paper. The pollen morphology shows similarity to the remainder of the family Magnoliaceae, and belongs to the primitive type within the present angiosperms. The wall ultrastructure shows the rugulate ornamentation of exine; sinuous tectum with perforations; very thin columellae, typical columella, shorter and erect, and belongs to the advanced type within the tribe Magnolieae.

Key words: Kmeria septentrionalis, Pollen morphology, Ultrastructure