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Torenia fournieri is a special plant with embryo sac partly protruding through the micropyle of ovule, and the cells of egg apparatus can be clearly observed using light microscope. Zygotes and the cells of bicellular proembryo could be isolated using enzymatic digestion. In the solution containing
The two sperm cells of Torenia fournieri are dimorphic. The dimorphic character suggests that they might be preferentially involved in fertilization during in vivo fusion with the egg cell and central cell. To probe the mechanism of preferential fertilization, it is necessary to use the most current
The effects of several hormones on pollen tube growth were compared in Torenia fournieri and it was found that IAA was the most effective, stimulating pollen tube growth and causing the shank part of pollen tubes to be slender and straighter. The role of IAA was investigated by studying the changes