Zheng, Xingyu, Venezia, Matthew, Blum, Elijah, Pedmale, Ullas V, Jackson, Dave, Prusinkiewicz, Przemyslaw, Navlakha, Saket (July 2024) Reticulate leaf venation in Pilea peperomioides is a Voronoi diagram. bioRxiv. ISSN 2692-8205 (Submitted)
Abstract
Reticulate leaf venation, characterized by the presence of loops, is a distinguishing feature of many flowering plants. However, our understanding of both the geometry and the morphogenesis of reticulate vein patterns is far from complete. We show that in the Chinese money plant (Pilea peperomioides), major veins form an approximate Voronoi diagram surrounding secretory pores known as hydathodes. We also propose a mechanistic model based on polar transport of the plant hormone auxin to produce Voronoi patterns. In contrast with classical models where veins directly connect auxin sources to sinks, our model generates veins that bisect the space between adjacent auxin sources, collectively forming loops. The paradigm change offered by this model may open the door to study reticulate vein formation in other species.
| Item Type: | Paper |
|---|---|
| Subjects: | organs, tissues, organelles, cell types and functions organism description > plant organs, tissues, organelles, cell types and functions > tissues types and functions |
| CSHL Authors: | |
| Communities: | CSHL labs > Jackson lab CSHL labs > Navlakha lab CSHL labs > Pedmale lab |
| SWORD Depositor: | CSHL Elements |
| Depositing User: | CSHL Elements |
| Date: | 3 July 2024 |
| Date Deposited: | 15 Apr 2026 14:39 |
| Last Modified: | 15 Apr 2026 14:39 |
| Related URLs: | |
| URI: | https://repository.cshl.edu/id/eprint/42157 |
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