Investigating the apical notch, apical dominance and meristem regeneration in Marchantia polymorpha.
Authors: Marron, A. O.
Date: 2026-01-10 · Version: 5
DOI: 10.1101/2024.02.04.575544 Category: Plant Biology
Model Organism: Marchantia polymorpha
▶ AI Summary
Using laser ablation microscopy, the study dissected the role of the first cell row and a contiguous stem cell quorum in the apical notches of germinating Marchantia gemmae, revealing that these cells are essential for meristem activity and that apical notches communicate via auxin‑mediated signals to regulate dominance and regeneration. The findings support a model of intra‑, inter‑, and extra‑notch communication governing meristem formation and maintenance in Marchantia.
meristem maintenance apical dominance laser ablation microscopy auxin signaling Marchantia gemma