Roxane Spiegelhalder @roxyspi.bsky.social

ALT Figure 1: (A) Schematic displaying stomatal development in wild type (WT). Open questions regarding the roles and mechanisms of BdMUTE are indicated. (B) In bdmute mutants, no subsidiary mother cell (SMC) is established, and no subsidiary cell (SC) division occurs. Guard mother cells (GMCs) mostly divide normally and the guard cell (GC) pair forms a pore and matures into functional complexes (upper GCs, dark green). However, ∼25% of the GMCs show aborted complexes with oblique divisions (lower GCs, gray). (C) Different stomatal morphologies found in WT (2 SCs), and in sid (1 SC, 0 SC and arrested phenotype). The images depicting the 1 SC and 0 SC phenotype stem from the weak rescue line M3GM. Midplane confocal images of fixed, cleared and Direct Red 23-stained mature stomata. Scale bars: 10 μm.