Cell polarity in plants

Cell polarity and tissue patterning in plants

Cell polarization is the specialization of developmental events along one orientation or one direction. Such polarization must be an early, essential stage of tissue patterning. The specification of orientation could not occur only at the level of the genetic system and it must express a coordination of events in many cells. There is a positive feedback relation between cell polarization and th...

Polarity in plants pdf

Cell polarity: Fixing cell polarity with Pins

A protein complex is assembled in a step-wise manner at the apical pole of Drosophila neuroblasts. This complex organizes the apical-basal polarity of asymmetrically dividing neuroblasts, and may act via G-protein signalling.

Cell polarity

The Minisymposium on Cell Polarity featured a broad array of systems. The session began with talks on asymmetric cortical polarity cues. Lesilee Rose (University of California, Davis) discussed asym-metric division in Caenorhabditis elegans. In the one-cell embryo, PAR polarity proteins regulate cytoplasmic polarity and cortical forces that position the spindle. The latter require the DEP domai...

An intracellular partitioning-based framework for tissue cell polarity in plants and animals.

Tissue cell polarity plays a major role in plant and animal development. We propose that a fundamental building block for tissue cell polarity is the process of intracellular partitioning, which can establish individual cell polarity in the absence of asymmetric cues. Coordination of polarities may then arise through cell-cell coupling, which can operate directly, through membrane-spanning comp...