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植物研究 ›› 2016, Vol. 36 ›› Issue (5): 676-682.doi: 10.7525/j.issn.1673-5102.2016.05.007

• 研究报告 • 上一篇    下一篇

东北茶藨子大小孢子发生及雌雄配子体发育

郑宝江1, 张一凡1, 王美娟1, 王海竹1, 徐启江2   

  1. 1. 东北林业大学生命科学学院, 哈尔滨 150040;
    2. 东北林业大学林木遗传育种国家重点实验室, 哈尔滨 150040
  • 收稿日期:2016-04-05 出版日期:2016-09-15 发布日期:2016-09-27
  • 通讯作者: 徐启江,E-mail:qijiangxu@126.com E-mail:qijiangxu@126.com
  • 作者简介:郑宝江(1970-),男,副教授,主要从事植物分类学和植物资源学研究。
  • 基金资助:
    中央高校基本科研业务费专项资金项目(2572014EA03);林木遗传育种国家重点实验室创新项目(2013A06,2013B010);国家基础科学人才培养基金(J1210053);黑龙江省博士后科研启动金(LBH-Q14011)

Megasporogenesis, Microsporogensis,and Male and Female Gametophyte Development of Ribes mandshuricum

ZHENG Bao-Jiang1, ZHANG Yi-Fan1, WANG Mei-Juan1, WANG Hai-Zhu1, XU Qi-Jiang2   

  1. 1. College of Life Science, Northeastern Forestry University, Harbin 150040;
    2. The State Key Laboratory of Tree Genetics and Breeding, Harbin 150040
  • Received:2016-04-05 Online:2016-09-15 Published:2016-09-27
  • Supported by:
    The Fundamental Research Funds for the Central Universities(Grant No.2572014EA03);The Innovation Project of State Key Laboratory of Tree Genetics and Breeding(Northeast Forestry University)(2013A06,2013B010);The National Science Foundation for Fostering Talents in Basic Research of the National Natural Science Foundation of China(Grant No.J1210053);Postdoctoral Science Foundation of Heilongjiang province(LBH-Q14011)

摘要: 采用常规石蜡切片技术,对东北茶藨子大、小孢子发生以及雌、雄配子体发育进行了深入研究。结果显示:(1)每朵花包含5个雄蕊,每个花药包含四个药室,小孢子母细胞减数分裂是同时型,四分小孢子包括正四面体型和左右对称型,发育完善的花粉粒为二细胞型;(2)花药壁发育类型为基本型,从外而内依次为表皮、药室内壁、2层中层、绒毡层,共五层结构,绒毡层为腺质型;(3)胚囊发育为典型的蓼型,子房1室,胚珠倒生多数,双珠被,厚珠心,线性四分大孢子;(4)花粉发育的不同阶段均有异常现象,导致花粉败育。

关键词: 东北茶藨子, 大孢子发生, 小孢子发生, 雌配子体, 雄配子体

Abstract: We used normal paraffin sectioning method to study the megasporogenesis and microsprrogenesis and the development of male and female gametophytes during development process of Ribes mandshuricum(Maxim.) Kom. The flower of R.mandshuricum has five stamens with four locules in each. During meiosis of the mother cell, the division of the cytoplasm can be attributed to the simultaneous type. The tetrad of microspores resulted from the meiosis are simultaneously bilateral and tetrahedral. The mature pollen grains are two-celled. The development of the anther wall belongs to an elementary type. The anther wall can be divided into five layers from outside to inside, including epidermis, endothecium, two middle layers and tapetum. Tapetum belongs to glandular type. The development of embryo sac belongs to the type of polygonum. R.mandshuricum is with one ovary, the ovules in which are anatropous, numerous, crassinucellate, and double integuments. The megasporocyte divides into four linear megaspore in the form of meiosis. The megaspore in chalazal end has a functional ability. There are some abnormal phenomena in the development of the anther, leading to the pollen degeneration.

Key words: Ribes mandshuricum(Maxim.) Kom., megasporogenesis, microsporogenesis, female gametophyte, male gametophyte

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