亚热带植物科学 ›› 2014, Vol. 43 ›› Issue (02): 114-118.DOI: 10.3969/j.issn.1009-7791.2014.02.006

• 生理生化 • 上一篇    下一篇

青葙花药发育的结构和组织化学观察

郭娇娇,郭笑娟,宋铁蛋,田惠桥   

  1. (厦门大学 生命科学学院,福建 厦门 361102)
  • 收稿日期:2013-10-25 修回日期:2013-10-25 出版日期:2014-06-10 发布日期:2014-06-10
  • 通讯作者: 田惠桥
  • 作者简介:郭娇娇,本科生,从事植物发育生物学研究。
  • 基金资助:

    国家自然科学基金(31170289)、公益性行业(农业)科研专项课题(200903016)资助

Structural and Histochemical Observation on the Anthers of Celosia argentea

GUO Jiao-jiao,GUO Xiao-juan,SONG Tie-dan,TIAN Hui-qiao   

  1. (School of Life Sciences, Xiamen University, Xiamen 361102, Fujian China)
  • Received:2013-10-25 Revised:2013-10-25 Online:2014-06-10 Published:2014-06-10
  • Contact: TIAN Hui-qiao

摘要: 对苋科植物青葙Celosia argentea花药发育的结构和组织化学(多糖和脂滴)特征进行观察。青葙小孢子发生为同时型,四分体为四面体型。药壁为典型四层,绒毡层属于同型绒毡层。成熟花粉为二胞型。早期花药中的淀粉粒和脂滴均较少,绒毡层细胞至小孢子晚期退化为体积较大的脂块。二胞花粉时期的中层细胞退化为脂滴。早期二胞花粉中先出现多糖颗粒,晚期的成熟花粉中积累大量淀粉粒和较少的脂滴为营养储存物。

关键词: 青葙, 花药发育, 形态学, 多糖, 脂类

Abstract: Structural and histochemical observations on the developing anthers of Celosia argentea L. (Amaranthaceae) were conducted. Its microsporogenesis is simultaneous and microspore tetrad is tetrahedral. Its anther wall consists of four typical layers of cells and tapetum is homotypical. Its mature pollen contains a small generative cell and a vegetative cell, belonging to bicellular. In young anthers starches and lipids were few. At late microspore stage, degenerating tapetal cells transformed into large lipids, and at early bicellular pollen stage, middle layer cell also transformed into lipids. In early bicellular pollen polysaccharose appeared first, and then lipids. Mature pollen of C. argentea accumulated numerous starches and fewer lipids as storage material.

Key words: anther, Celosia argentea L., lipid, polysaccharide, structure

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