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当前位置: 首页 > 文章 > 黄花菜大孢子和小孢子的发生及雌、雄配子体的发育 园艺学报 2006,33 (1) 38-45
Position: Home > Articles > Megasporogenesis,Microsporogenesis and Development of Female and Male Gametophyte of Hemerocallis citrine Baroni Acta Horticulturae Sinica 2006,33 (1) 38-45

黄花菜大孢子和小孢子的发生及雌、雄配子体的发育

作  者：
申家恒;申业;王艳杰;袁秋红;于春光
单  位：
黑龙江大学生命科学学院生物工程系;哈尔滨师范大学生命与环境科学学院生物系
关键词：
黄花菜;小孢子发生;雄配子体;大孢子发生;雌配子体
摘  要：
用常规石蜡切片技术,对黄花菜大孢子和小孢子的发生及雌、雄配子体发育进行了研究,结果表明:花药壁发育为单子叶型。小孢子母细胞减数分裂的胞质分裂为连续型。小孢子四分体排列为左右对称型和四面体型。成熟花粉为二细胞型。花粉为椭球形,具有一个萌发沟。生殖细胞呈现前期至早中期核形态。双珠被、薄珠心、倒生胚珠。珠心表皮下的雌性孢原直接发育为大孢子母细胞。减数分裂产生线形四分体。合点端大孢子为功能大孢子。雌配子体发育为蓼型。记录了雌、雄配子体发育的对应关系。成熟胚囊里,反足细胞早期退化,助细胞无钩状结构并具发达的丝状器以及中央细胞内没有明显大液泡是黄花菜胚囊发育的重要特征。
译  名：
Megasporogenesis,Microsporogenesis and Development of Female and Male Gametophyte of Hemerocallis citrine Baroni
作  者：
Shen Jiaheng ~1,Shen Ye~2,Wang Yanjie~1,Yuan Qiuhong~1,and Yu Chunguang~1(()~1Department of Biology,College of Life and Environment Science,Harbin Normal University,Harbin 150080,China;()~2Department of Biological Engineering,College of Life Science,Heilongjiang University,Harbin 150080,China)
关键词：
Hemerocallis citrine Baroni;Microsporogenesis;Male gametophyte;Megasporogenesis;Female gametophyte
摘  要：
This paper studies the megasporogenesis,microsporogenesis and development of female and male megasporogenesis by way of paraffin wax of Hemerocallis citrine Baroni.The results are as follows:The development of anther wall follows Monocotyledonous type.Successive cytokinesis in microspore mother cell accompanies meiosis to produce tetrahedral tetrad as well as medianly zygomorphic tetrad.Ellipsoidal pollen grains are 2-celled when shed,with one germinal furrow.At this time,the nucleus in generative cell present the state of prophase or metaphase of mitosis.Ovule is bitegminous,temuinucellatae and anatropous.The archesporial cell below nucellus epiderm functions directly as the megaspore mother cell.The chalazal megaspore of linear tetrad develops into a Polygonum type embryo sac.Recorded relative development stage of pistil and stamen.In mature embryo sac,antipodal cell degenerates early.The main characteristics of the development of embryo sac in this species are that synergids without crook are abounded in filiform apparatus and there is no eminent vacuole in central cell.

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