apical meristem
Americannoun
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A meristem at the tip of a plant shoot or root that produces auxin and causes the shoot or root to increase in length. Growth that originates in the apical meristem is called primary growth. In vascular plants, the apical meristem produces three kinds of primary meristems: the protoderm, ground meristem, and procambium. These in turn produce primary tissues.
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See more at meristem
Example Sentences
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BBM encodes a transcription factor that regulates embryonic development, while WUS encodes a transcription factor that maintains stem cell identity in the shoot apical meristem region.
From Science Daily ● May 1, 2024
Just in front of it lies the polychate worm version of the apical meristem in plants: a place where stem cells continuously generate new body parts called the posterior growth zone.
From Scientific American ● Aug. 8, 2021
Primary growth of stems is the result of the division and elongation of cells produced in the apical meristem.
From Textbooks ● Jan. 1, 2018
Cells akin to an apical meristem actively divide and give rise to a gametophore, consisting of a photosynthetic stem and foliage-like structures.
From Textbooks ● Jan. 1, 2015
The apical meristem is made of undifferentiated cells that continue to proliferate throughout the life of the plant.
From Textbooks ● Jan. 1, 2015
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