Stomatal Patterning and Guard Cell Differentiation

Stomatal Patterning and Guard Cell Differentiation,10.1007/7089_2007_135,Keiko U. Torii

Stomatal Patterning and Guard Cell Differentiation   (Citations: 1)
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Gas exchange between plants and the atmosphere takes place through stomata (singular, stoma), which are microscopic valves on the plant epidermis composed of paired guard cells. Stomatal differentiation involves a series of asymmetric divisions of precursor cells followed by a single symmetric cell division that produces terminally differentiated guard cell pairs. Stomatal development emerged as a model system to study how environmental- and cell-cell signals translate into site/orientation of asymmetric cell division and cell-type differentiation. This chapter focuses on cell-state transition events leading to guard cell differentiation in the model plant Arabidopsis, and cell-cell signaling mechanisms controlling stomatal patterning. Understanding how cell-cycle regulators influence stomatal patterning and differentiation will advance our knowledge of cell division control in plant development.
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