Tag: Development

Vascular cambium cells are meristematic cells responsible for secondary growth. Lineage tracing studies in Arabidopsis and poplar show the presence of single bifacial stem cells in each radial cell file that produce xylem inwards and phloem cells outwards. In a recent review, Wybouw et al. discuss the…

For hundreds of years, we have propagated plants clonally by grafting, i.e. the union of a scion and a rootstock to form a new plant. To be successful, a graft junction must heal: tissues must attach, and vascular bundles reconnect, in a process known to involve auxin. Here, Serivichyasw at et al. investigate…

OsLESV cooperates with FLO6 to modulate starch biosynthesis and endosperm development Yan, Zhang, Wang et al. identify OsLESV–FLO6 as a non-enzymatic molecular module responsible for starch biosynthesis and endosperm development. https://doi.org/10.1093/plcell/koae006 By Haigang Yan, Wenwei…

Polycarpic perennials, as opposed to annual plants, flower multiple times over several growing seasons throughout their lifecycle. To do that, they must retain a vegetative meristem that does not produce flowers during the reproductive phase. MADS-box transcription factors like FLOWERING LOCUS C (FLC)…

Gametogenesis is essential for sexual reproduction. In bryophytes, lycophytes, and ferns, gametogenesis takes place in gametangia: antheridia for sperm production and archegonia for egg production. How these specialized reproductive organs develop at the molecular level remains unclear. Furuya et al.…

While it is recognized that plant communication, both within and between plants, can be achieved through emission and perception of volatile organic compounds (VOCs), it is unclear exactly how these signals are perceived and transmitted. Stirling et al. tease apart the components of within-plant VOC…

Reactive oxygen species (ROS) are agents of damage but also potent signals. Here, Singh et al. review the cellular targets that support ROS signaling across the green kingdom. Many of the signaling roles for ROS have been uncovered in Arabidopsis and other angiosperms, so it is interesting to look at…

The mechanisms of apical dominance and bud outgrowth have puzzled generations of plant scientists, and over a century various hypotheses have been scrutinized. Two main hubs of regulation – auxin canalization (movement of auxin from a bud into the main stem) and the branching transcription factors…