During leaf development, the meristem tissue divides asymmetrically, producing one daughter cell that is just like the mother and another cell that differentiates into guard cell precursors.
Asymmetric type of cell division will generate two cells having different fates and comprises an important role in the development of plants and it produces distinct types of cells as well as new organs and maintains niches of stem cells.
Asymmetric cell division is considered a fundamental mechanism that has the ability to generate cell diversity during maintaining stem cell populations that are self-renowing in multicellular organisms. In general, both intrinsic, as well as extrinsic mechanisms, are involved to underpin the breakage of symmetry and determination of fate in differential daughter cells in animals and plants as well.
Then, the emerging picture suggests that plants can deal with the problem of breakage of symmetry using cell polarity proteins that is unique and includes mobile transcription factors as well as components of the cell wall in order to influence the asymmetric type of divisions and the fate of the cell and id differentiated into precursors of guard cells.
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