Lineage- and stage-specific expressed CYCD7;1 coordinates the single symmetric division that creates stomatal guard cells.

ABSTRACT: Plants, with cells fixed in place by rigid walls, often utilize spatial and temporally distinct cell division programs to organize and maintain organs. This leads to the question of how developmental regulators interact with the cell cycle machinery to link cell division events with particular developmental trajectories. In Arabidopsis leaves, the development of stomata, two-celled epidermal valves that mediate plant-atmosphere gas exchange, relies on a series of oriented stem cell-like asymmetric divisions followed by a single symmetric division. The stomatal lineage is embedded in a tissue in which other cells transition from proliferation to postmitotic differentiation earlier, necessitating stomatal lineage-specific factors to prolong competence to divide. We show that the D-typ

SUBMITTER: Weimer AK 

PROVIDER: S-EPMC5897600 | biostudies-literature | 2018 Mar

REPOSITORIES: biostudies-literature