| 红花胚珠和雌配子体发育 |
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| 引用本文： | 丁惠宾,周向军.红花胚珠和雌配子体发育[J].西北植物学报,1998,18(3):352-355. |
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| 作者姓名： | 丁惠宾 周向军 |
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| 作者单位： | 兰州大学生物系 |
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| 摘 要： | 用石蜡切片法研究了红花的大孢子发生和雌配子体发育过程，得到以下结果：（１）胚珠发育为薄珠心类型，倒生胚珠，具单珠被。（２）胚囊发育蓼型。（３）有珠被绒毛层，珠被绒毡层起始于大孢子母细胞时期，单核胚囊阶段高度发育，受精后从合点端逐渐退化。珠孔塞细胞呈毛状。
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| 关 键 词： | 红花 胚珠 胚囊 珠被绒毡层 珠孔塞 |
DEVELOPMENT OF OVULE AND FEMALE GAMETOPHYTE IN CARTHAMUS TINCTORIUS L. |
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| Ding Huibin,Zhou Xiangjun,Zhang Meiping and Wang Yaozhi.DEVELOPMENT OF OVULE AND FEMALE GAMETOPHYTE IN CARTHAMUS TINCTORIUS L.[J].Acta Botanica Boreali-Occidentalia Sinica,1998,18(3):352-355. |
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| Authors: | Ding Huibin Zhou Xiangjun Zhang Meiping and Wang Yaozhi |
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| Abstract: | The process of megasporogenesis and development of female gametophyte in Carthamus tinctorius L.has been studied by the parraffin sections method.The results are as follows:(1) Development of ovule is tenuinucellate type,anatropous ovule,unitegminy.(2) Development of embryo sac is polygonum type.(3) There is a endothelium,it initiated from the megasporocyte stage and enoughly development in the stage of uninucleate embryo sac.After fertilization,endothelium gradually degenerated from chalaza end.The obturator cells are trichoid. |
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| Keywords: | Carthamus tinctorius L ovule embryo sac endothelium obturator |
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