tube nucleus
noun
: the one of the two nuclei formed by mitotic division of a microspore during the formation of a pollen grain that is held to control subsequent growth of the pollen tube and that does not divide again compare generative nucleus
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“Tube nucleus.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/tube%20nucleus. Accessed 5 Nov. 2024.
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