location of tube nucleus
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The tube cell (also referred to as the tube nucleus) develops into the pollen tube. The germ cell divides by mitosis to produce two sperm cells. Division of the germ cell can occur before or after pollination. The tetrad of four haploid cells is located inside an anther sac (microsporangium) of Lilium.
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tube nucleus One of the two nuclei produced when the haploid nucleus of a pollen grain divides by mitosis (compare generative nucleus). The tube nucleus is thought to control growth of the pollen tube.
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