The plant cell wall regulates development through spatiotemporal modulation of its chemical and mechanical properties. Pectin methylesterification is recognized as a rheological switch controlling wal...

Signaling of secreted CLAVATA3/EMBRYO SURROUNDING REGION (CLE) peptides via CLV1-type receptor kinases is a central mechanism regulating stem cell pool size. Originally characterized in the context of shoot meristem maintenance, this network has been increasingly scrutinized in recent years for its role in Arabidopsis thaliana (Arabidopsis) root meristem maintenance and organization. These analyses revealed unique, often seemingly paradoxical facets, which can be understood from the rewiring of CLE signaling networks in the root compared with the shoot. Here, we review the intricate interplay between distinct and antagonistic CLE signaling pathways in the primary root meristem, which suggests that the core function of CLE signaling in roots is to dynamically buffer antagonism between positive and negative signaling inputs, thereby enhancing developmental robustness.

This study reveals that LBD transcription factors in the cambium drive radial plant growth by regulating PECTATE LYASE-LIKE (PLL) enzymes that remodel cell wall pectin, promoting cell expansion.

The vascular cambium contains bifacial stem cells producing secondary phloem in one and secondary xylem to the opposite direction. In Arabidopsis r...

Wood constitutes the largest reservoir of terrestrial biomass. Composed of xylem, it arises from one side of the vascular cambium, a bifacial stem cell niche that also produces phloem on the opposing ...

Chang et al. reveal that ARH1, FEI1, and FEI2 negatively regulate middle cortex formation via modulating the biosynthesis of GA. They elucidate that SHR and SCR negatively control the expression level...