中国林学（英文版）2005，Vol.7Issue(1)：20-24,5.
Biological Features of Flowering and Development of Male Gametophyte in Anthurium andreanum
Biological Features of Flowering and Development of Male Gametophyte in Anthurium andreanum
摘要
Abstract
The aim of this study is to follow each development stage of inflorescence in order to understand the biological feature of flowering and the development of male gametophyte in Anthurium andreanum "Arizona" and to try to find the optimum conditions for its pollination. The methods of dissection and paraffin section were adopted to examine the structural characteristics of anthurium's tiny floret and the development of the microspore. All the florets of the anthurium arrange on the rhachis helically subtended by a colorful bract. Each tiny floret has one gynoecium, four tepals and four stamina. The bract and the florets show different colors during the whole blooming period. The ovary is bicarpellary and has two locules, each of which has one anatropous ovule. The placenta is of a central placentation type. The stylar canal cells not only can produce the secretory mucilage but also can release their own cytoplasm caused by their self-disintegration before the pistil reaches its maturity. The wall of the anther is composed of four layers: epidermis, endothecium, middle layer and tapetum. The tapetal cells and the middle layers' cells degenerated completely during meiosis of microsporocytes. The pollen grains were 2-celled at the time of anther dehiscence. Early morning, when the inflorescences stay at their fifth development stage, is the optimum opportunity for pistil to get pollen grains. The pollen-collection should be done at the end of the seventh stage.关键词
Anthurium andreanum/flowering/development/biological feature/male gametophyteKey words
Anthurium andreanum/flowering/development/biological feature/male gametophyte引用本文复制引用
Bai Jing-shu,Zhu Xiao-qing,Li Feng-lan,Guo Hui-hong,Li Zhi-dan..Biological Features of Flowering and Development of Male Gametophyte in Anthurium andreanum[J].中国林学（英文版）,2005,7(1):20-24,5.基金项目
Supported by the Graduate Students' Research Foundation of Beijing Forestry University （）
