Most shapes in plant organs are pre-determined at the primordial stage and from this point, growth will establish and maintain this shape. Rarely will re-shaping of an organ occur post-organogenesis. However, Hu et al. describe a notable exception in Capsella rubella, a close relative of Arabidopsis thaliana. Capsella’s female reproductive organ, the gynoecium, undergoes a […]
Plants frequently encounter damage during growth and development, necessitating remarkable regenerative abilities to repair damaged tissues. Plants can regenerate organs or even entire plants from callus or a single cell, a capacity underpinning asexual reproduction and various biotechnological applications. While numerous studies have investigated the plant regenerative response triggered by damage, the nature of the […]
The precise control of cell division orientation drives plant 3D structure formation, enabling radial and longitudinal growth. The SPL pathway is closely linked to age-related processes in the shoot, driving the vegetative transition from juvenile to adult phases by regulating specific morphological and molecular traits. Similarly, in the root apical meristem (RAM), SPL transcription factors […]
For a plant, form is function. Despite the diversity of forms that exist in nature, plant root diversity is notoriously understudied compared to their aerial counterpart. This review by Ramachandran and Ramirez et al. aims to revitalize the field of root form-function research by accentuating the vast array of root adaptations plants have evolved to […]
Plasmodesmata are important for intercellular communication in plants. They are formed through incomplete cytokinesis during which there is no “final cut” of the communication between daughter cells. Unlike animal cells that have a single bridge between cells, plants create several hundreds of plasmodesmata bridges between daughter cells. While the function and structure of the plasmodesmata […]
Light is both a source of energy for photosynthesis and a key environmental signal that regulates plant growth. Seedlings grown in darkness exhibit elongated hypocotyls and shorter roots, while light promotes shorter hypocotyls and longer roots. Cryptochromes (CRYs), as blue-light receptors, mediate many blue-light-dependent processes, but their roles under darkness or non-blue-light conditions remain unclear. […]
The vascular cambium, a bifacial stem cell niche, generates xylem on one side and phloem on the other, driving wood formation—the largest reservoir of terrestrial biomass. This developmental system must balance producing two distinct cell types while maintaining a reservoir of stem cells. Key questions remain: How are cambial stem cells positioned and maintained, and […]
Thanks to the continued shedding and renewal of root cap cells, plant roots are able to extend into further reaches within the soil column overcoming physical barriers and potential microbial attacks, or so we assumed. Charura et al. explored the latter hypothesis showing that timely programmed cell death at the root cap confers protective properties […]
While flowers are typically associated with pleasant fragrances, every few years a certain part of the rainforests of Sumatra is filled with the pungent odor of rotting flesh. This smell emanates from the inflorescence of the titan arum, or corpse plant, which heats up during flowering in a process known as thermogenesis. Thermogenesis is rare […]