%0 Journal Article %A WANG Hai-Zhu %A WANG Mei-Juan %A XU Qi-Jiang %A ZHANG Yi-Fan %A ZHENG Bao-Jiang %T Megasporogenesis, Microsporogensis,and Male and Female Gametophyte Development of Ribes mandshuricum %D 2016 %R 10.7525/j.issn.1673-5102.2016.05.007 %J Bulletin of Botanical Research %P 676-682 %V 36 %N 5 %X 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. %U https://bbr.nefu.edu.cn/EN/10.7525/j.issn.1673-5102.2016.05.007