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植物研究 ›› 1994, Vol. 14 ›› Issue (3): 255-262.

• 论文 • 上一篇    下一篇

白刺属的胚胎学特征及其系统学意义

李师翁1, 屠骊珠2   

  1. 1. 庆阳师专生物系, 甘肃西峰 745000;
    2. 内蒙古大学生物系, 内蒙古呼和浩特 010021
  • 收稿日期:1993-04-01 出版日期:1994-09-15 发布日期:2016-06-14

THE EMBRYOLOGY AND IT'S SYSTEMATIC SIGNIFICANCE OF NITRARIA

Li Shi-weng1, Tu Li-zhu2   

  1. 1. Department of Biology, Qin Yang Teather's College, XiFeng Gansu 745000;
    2. Department of Biology, Znner Mongolia University, Huhhot 010021
  • Received:1993-04-01 Online:1994-09-15 Published:2016-06-14

摘要: 作者在对白刺属的胚胎学进行了详细研究的基础上,比较了该属与蒺藜科内Fagonia,seetzenia,zygophyllum,pegamum,Balanites等属的胚胎学特征,发现白刺属在花药壁的发育、小孢子四分体排列,雌蕊的结构、胚珠的数目、珠心的发育、珠被绒毡层有无、珠孔的构成、大孢子孢原和大孢子母细胞的数目、胚柄的发育、多胚现象、果实的发育和类型等方面存在明显的差异。结果表明胚胎学特征支持将白刺属独立为白刺科的观点。文中对蔟藜科胚胎学及系统学研究作了结论。

关键词: 白刺属, 胚胎学, 系统学

Abstract: On the basis of the detailed studiy on the embryology in Nitraria sibirica Pall., the authors compared the characters of this genus with Those of the other genera in Zygophyllaceae, i.c.Fagonia, Scetzenia. Zygophyllum, Peganum, Balanites, and ered a distinct difference on the author wall development. microspere tetrads, gynoecium, ovule number in each locule, nucellus development, the presence or absence of the intemont tapetum formation of micropyle, endothelium, number of archespore and megaspore mother cell, suspensor developmnet, polyembryony, fruit dcvclopmnet, etc. The conclusion supports that the Nirtfaria should be separated from Zygophyllaccac, and set up a family Nitrariaceac.

Key words: Nitraria, Embryology, Systematic position