Mechanics and growth coordination define SOSEKI-based polarity fields
Piepers, M.; Reyes-Hernandez, B. J.; Ramos, J. R.; Boelke, N.; Schuetz, L.; Song, C.; Primc, A.; Bald, L.; Merks, R. M.; Maizel, A.
Show abstract
The formation of organs requires the coordinated growth of cells and tissues relative to the main body axes. Plant growth is typically anisotropic and mechanically coupled through contiguous cell walls, yet how these physical patterns link to cell and tissue polarity remains unclear. Here, we use SOSEKI (SOK) proteins--previously thought to report global polarity fields--as markers to dissect how polarity arises during lateral root (LR) organogenesis. Live imaging revealed that SOK polarisation does not follow a uniform global field but instead responds to local differences in growth and mechanical state between neighbouring tissues. SOKs accumulate at interfaces separating domains of distinct growth behaviour and dissipate under compressive stress. After perturbing tissue interfaces or the mechanical continuity of the tissue, the coherence of the polarity was disrupted, indicating that stable axis establishment requires mechanical coupling across the cell wall network. Our results suggest that SOK polarisation is mechanoresponsive, linking tissue mechanics to polarity and axis establishment.
Matching journals
The top 5 journals account for 50% of the predicted probability mass.
Similar papers in this journal
- Root twisting drives halotropism via stress-induced microtubule reorientation 95%
- Single-Cell Resolution of Lineage Trajectories in the Arabidopsis Stomatal Lineage and Developing Leaf 95%
- Existing actin filaments orient new filament growth to provide structural memory of filament alignment during cytokinesis 94%
Similar papers in this journal
Similar papers in this journal
- Tuning of self-renewing capacity in theArabidopsis stomatal lineage by hormonaland nutrition regulation of asymmetric celldivisions 95%
- Opposite polarity programs regulate asymmetric subsidiary cell divisions in grasses 95%
- The Arabidopsis SHORTROOT network coordinates shoot apical meristem development with auxin dependent lateral organ initiation 95%
Similar papers in this journal
- Induction of cortical Par complex polarity by designed proteins causes cytoskeletal symmetry breaking in unpolarized mammalian cells 95%
- Ultrafast and long-range coordination of wound responses is essential for whole-body regeneration 95%
- Extracellular hyaluronate pressure shaped by cellular tethers drives tissue morphogenesis 95%
Similar papers in this journal
"Similar papers" are the closest papers from that journal in the model's embedding space. They show what the match is built on, but the ranking comes mostly from a classifier over the whole training set, not from these examples alone.