tube cell

American  

[toob sel, tyoob] / ˈtub ˌsɛl, ˈtyub /

noun

1. Botany. Also called vegetative cell. the reproductive cell in a pollen grain that develops into a pollen tube, from which a seed-bearing plant's male gametes are transported to the ovule for fertilization.

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tube cell Scientific  

/ to̅o̅b /

1. The cell in the pollen grain that develops into the pollen tube (the tube which conveys the male gametes of seed-bearing plants to the ovule).

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Example Sentences

Mature pollen grains contain two cells: a generative cell and a pollen tube cell.

From Textbooks • Jan. 1, 2015

The pollen grain undergoes mitosis, producing a generative cell and a tube cell.

From Textbooks • Jan. 1, 2015

Upon germination, the tube cell forms the pollen tube through which the generative cell migrates to enter the ovary.

From Textbooks • Jan. 1, 2015

Each pollen grain contains two cells: one generative cell that will divide into two sperm, and a second cell that will become the pollen tube cell.

From Textbooks • Apr. 25, 2013

Each pollen grain contains two cells: one generative cell that will divide into two sperm, and a second cell that will become the pollen tube cell.

From Textbooks • Apr. 25, 2013