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利用常规石蜡切片法对灯笼果(RibesgrossulariaL.)的大小孢子及雌雄配子体发育进行观察.结果表明,花药为4个孢子囊,药壁发育属基本型.腺质绒毡层细胞具多核,小孢子母细胞胞质分裂为同时型,四分体排列呈四面体型或左右对称型,成熟花粉为2─细胞型.胚珠倒生,双珠被厚珠心,大孢子母细胞减数分裂四分体多呈T型排列,合点端的为功能大孢子.偶见合点端2个同时为功能大孢子,蓼型胚囊,次生极核常偏于合点端,并具承珠盘结构.
The microspore and the male and female gametophyte development of Ribes grossularia L. were observed by the conventional paraffin section method. The results show that the anther is 4 sporangia, the development of drug wall is a basic type. Glandular tapetal cells with multiple nuclei, microspore mother cells cytokinesis simultaneously, quadrilateral arranged in tetrahedral or symmetrical, mature pollen 2 ─ cell type. Inverted ovules, double beads were thick beads, megasporocyte meiosis quartet mostly T-shaped arrangement, combined point for the function of megaspores. Occasionally point 2 at the same time for the function of megaspore, Polygonum type embryo sac, secondary polar often biased at the junction point, and with Pearl plate structure.