
Plant stem cells under low oxygen: metabolic rewiring by phytoglobin underlies stem cell functionality
When flooding occurs, soils become saturated and oxygen solubility and diffusion decreases. This situation creates a hypoxic environment in the roots that stresses the plant, causing significantly decreased growth. However, the quiescent center (QC) stem cells, located in the root apical meristem, are…

Regeneration finds a new friend
Bisht et al. Identify key factors in wound-activated regenerative cell division.
Jefri Heyman1,2 and Lieven De Veylder1,2
1Department of Plant Biotechnology and Bioinformatics, Ghent University, Ghent, B-9052, Belgium.
2VIB Center for Plant Systems Biology, Ghent, B-9052, Belgium.
Background:…

Leaving the boundary behind to make a new branch
Nicolas et al. explore the mechanisms regulating CUP-SHAPED COTYLEDON expression in axillary meristem initiation. https://doi.org/10.1093/plcell/koac269
Antoine Nicolasa,b and Patrick Laufsa
a Université Paris-Saclay, INRAE, AgroParisTech, Institut Jean-Pierre Bourgin (IJPB), 78000, Versailles,…

Concentration-dependent transcriptional switching through a collective action of cis-elements (Sci. Adv.)
One of the well-known molecular pathways that regulate plant development is the one formed by the homeobox transcription factor WUSCHEL (WUS) and the secreted peptide CLAVATA 3 (CLV3). In the shoot apical meristem (SAM), WUS expression is constrained to the organizing center where it maintains the stem…