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Plant Signal Behav. 2010 Mar;5(3):278-80. Epub 2010 Mar 18.

BASL and EPF2 act independently to regulate asymmetric divisions during stomatal development.

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Department of Molecular Biology and Biotechnology, University of Sheffield, Sheffield, UK.


The initiation of stomatal development in the developing Arabidopsis epidermis is characterized by an asymmetric 'entry' division in which a small cell, known as a meristemoid, and a larger daughter cell is formed. The meristemoid may undergo further asymmetric divisions, regenerating a meristemoid each time, before differentiating into a guard mother cell which divides symmetrically to form a pair of guard cells surrounding a stomatal pore. Recently EPF2 and BASL have emerged as regulators of these asymmetric divisions and here we present results indicating that these two factors operate independently to control stomatal development.


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