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Pollen tubes of Cyrtanthus mackenii, a species with bicellular pollen, were cultured in vitro to investigate nuclear phase changes during generative cell division and male germ unit (MGU) formation, using flow cytometric analysis. Results revealed that sperm cells were formed after 12 h of culture. During sperm maturation, the nuclei of sperm cells were not associated with the vegetative nucleus (unassociated...
This study aimed to analyze male gamete behavior from mature pollen to pollen tube growth in the bicellular pollen species Alstroemeria aurea. For mature pollen, pollen protoplasts were examined using flow cytometry. The protoplasts showed two peaks of DNA content at 1C and 1.90C. Flow cytometry at different developmental stages of pollen tubes cultured in vitro revealed changes in the nuclear phase...
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