Entries by Andrea Gómez-Felipe

Cytokinin–CLAVATA cross-talk is an ancient mechanism regulating shoot meristem homeostasis in land plants (PNAS)

The shoot apical meristem (SAM) maintains a small pool of pluripotent stem cells, which are the source of all above-ground plant tissues. In Arabidopsis thaliana, CLAVATA3 (CLV3), CLAVATA1(CLV1) and RECEPTOR-LIKE PROTEIN KINASE2 (RPK2) repress WUSCHEL (WUS) expression. WUS induces CLV3, forming a local feedback loop to maintain the stem cell population. Cytokinin is also involved […]

Systems approaches reveal that ABCB and PIN proteins mediate co-dependent auxin efflux (Plant Cell)

In plant development, advanced computer model simulations allow the understanding of the non-intuitive relations between local morphogenetic processes and global patterning. In Arabidopsis thaliana, the hormone auxin is involved in several processes of plant development. Auxin transporters play an important role in its distribution within plant tissue. The PIN-formed (PIN) and B sub-family of membrane-bound […]

Live Plant Cell Tracking: A Fiji plugin to analyze cell proliferation dynamics and understand morphogenesis (Plant Physiol.)

Live Plant Cell Tracking: A Fiji plugin to analyze cell proliferation dynamics and understand morphogenesis Morphogenesis in plants occurs in 3D space over time, referred to as 4D. Recent advances in high-resolution microscopy imaging and computational pipelines have helped to better understand plant organ development at cellular resolution. Hernández-Herrera et al. developed a plugin, “Live […]

A single-cell Arabidopsis root atlas reveals developmental trajectories in WT and cell identity mutants (Dev. Cell)

Single-cell RNA sequencing (scRNA-seq) is a powerful tool to identify rare and novel cell types, characterize multiple cell types, and more accurately understand their functions across their life cycles. The Arabidopsis root is a perfect system in which to investigate cellular differentiation due to its immobile and organized cells. Shahan and Hsu et al. built […]

Misregulation of MYB16 expression causes stomatal cluster formation by disrupting polarity during asymmetric cell divisions (Plant Cell)

Water loss during photosynthesis is limited by specialized plant cells such as stomata, as well as cuticle formation on the epidermis. In Arabidopsis thaliana, stomata lineage is a good system in which to elucidate the interplay between biochemical signals and mechanical properties during leaf development. In this study, Yang et al. explored the connection between […]

Microtubule-based perception of mechanical conflicts controls plant organ morphogenesis (Sci. Adv.)

Morphogenesis is a critical process in plants and animals that allows a cell, tissue, or organism to reach its final shape. In Arabidopsis thaliana, the formation of lateral root primordia (LRP) is an excellent example of organ morphogenesis that involves cell remodeling throughout differential growth of an internal tissue. In this study, Stöckle et al. […]