欢迎访问《植物研究》杂志官方网站,今天是 分享到:

植物研究 ›› 2022, Vol. 42 ›› Issue (3): 352-357.doi: 10.7525/j.issn.1673-5102.2022.03.004

• 系统与进化 • 上一篇    下一篇

海金沙卵发生的组织化学研究

郭严冬1, 张明霞1, 周义峰1, 戴锡玲2, 王全喜2, 曹建国2()   

  1. 1.江苏省中国科学院植物研究所,南京 210014
    2.上海师范大学生命科学学院,上海 200234
  • 收稿日期:2021-06-23 出版日期:2022-05-20 发布日期:2022-05-20
  • 通讯作者: 曹建国 E-mail:cao101@5hnu.edu.cn
  • 作者简介:郭严冬(1990—),女,硕士,主要从事蕨类植物生殖与发育生物学研究。
  • 基金资助:
    国家自然科学基金项目(30970267);上海市教委重点项目(12ZZ128)

Yandong GUO1, Mingxia ZHANG1, Yifeng ZHOU1, Xiling DAI2, Quanxi WANG2, Jianguo CAO2()   

  1. 1.Institute of Botany,Jiangsu Province and Chinese Academy of Sciences,Nanjing 210014
    2.College of Life Science,Shanghai Normal University,Shanghai 200234
  • Received:2021-06-23 Online:2022-05-20 Published:2022-05-20
  • Contact: Jianguo CAO E-mail:cao101@5hnu.edu.cn
  • About author:GUO Yandong(1990—),female,master,major in reproductive and developmental biology of ferns.
  • Supported by:
    National Natural Science Foundation of China(30970267);Key Project of Shanghai Municipal Education Commission(12ZZ128)

摘要:

采用组织化学方法对海金沙(Lygodium japonicum (Thunb.) Sw.)卵发生进行了研究。高碘酸-锡夫反应(PAS反应)结果显示:颈沟和腹沟细胞外产生的黏性物质为多糖类物质;在卵细胞发生早期颈卵器细胞内均含有质体,且淀粉粒含量丰富,随着颈卵器的发育,卵细胞以及颈沟和腹沟细胞内淀粉粒数量和体积均逐渐减少,最后退化消失。苏丹黑B反应结果显示:海金沙颈沟和腹沟细胞外产生的黏性物质也含有脂类物质,而卵细胞内并未有明显脂类物质产生;卵细胞质膜处也并没有糖类或脂类物质的积累。本研究从组织化学角度佐证了海金沙的特殊性,即既有原始蕨类的特征,又有进化蕨类的特征。

关键词: 海金沙, 卵发生, 组织化学, PAS反应, 苏丹黑B反应

Abstract:

The oogenesis of Lygodium japonicum(Thunb.) Sw. was studied by histochemical method in this study. The results of PAS reaction showed that the extracellular viscous substances of neck canal and ventral canal cells were polysaccharides; there were plastids and rich starch granules in cell of archegonium in the early stage of oogenesis, with the development of archegonium, the number and volume of starch granules in the egg and neck canal and ventral canal cells gradually decreased, and finally degenerated and disappeared. The results of Sudan black B reaction showed that the extracellular viscous substances of neck canal and ventral canal cells of L. japonicum also contain lipids, but there was no obvious lipids production in egg cells. Comprehensive studies showed that there was no accumulation of carbohydrates or lipids in the plasma membrane of egg cells. From the perspective of histochemistry, this study confirmed the particularity of L. japonicum, it had the characteristics of both primitive ferns and evolutionary ferns.

Key words: Lygodium japonicum(Thunb.) Sw., oogenesis, histochemistry, PAS reaction, Sudan black B reaction

中图分类号: