The stomatal precursor cell uses autocrine peptide-receptor kinase signaling to self-inhibit its differentiation potential in order to ensure proper stomatal development on the plant epidermis.
Development of a real-time SnRK2 kinase FRET reporter reveals rapid SnRK2 activation by ABA, but not by Methyl-Jasmonate or elevated CO2, while directly demonstrating basal SnRK2 activity in guard cells.
Yan Gong, Julien Alassimone ... Dominique C Bergmann
Quantitative live-cell time-lapse imaging reveals that the spatial and temporal degree of cortical polarity domains reflects stem-cell division capacity in cells of the Arabidopsis plant leaf epidermis.
A binary cell fate decision to be or not to be stomata is regulated by multiple peptide ligands, each triggering a unique subcellular dynamics of their shared receptor.
Dan Zhang, Roxane P Spiegelhalder ... Michael T Raissig
The formation of stomatal 'helper cells' (=subsidiary cells) in grasses requires two opposing polarity domains with diverse roles in establishing division asymmetry.
Benjamin Brandt, Shintaro Munemasa ... Julian I Schroeder
The calcium-dependent signaling pathway during ABA-dependent stomatal closure requires the calcium-independent pathway, and calcium signaling specificity is mediated by PP2C protein phosphatases.
Kathleen Greenham, Carmela Rosaria Guadagno ... C Robertson McClung
Coupled physiology and gene expression, measured over a two-day time course, reveals specific time-of-day responses to the early stages of drought in Brassica rapa.
Vladislav Susoy, Erik J Ragsdale ... Ralf J Sommer
Evolutionary novelty is promoted by a macroevolutionary pulse of developmental plasticity, but is enhanced by secondary fixation, which permits developmental character release and further morphological exploration.
Andrea Mair, Shou-Ling Xu ... Dominique C Bergmann
Proximity-labeling using engineered biotin ligases TurboID and miniTurbo enables detection of cell-type-specific and low abundance protein complexes and subcellular proteomes in Arabidopsis and other plants.