Entries by Linda Palmer

TRAPP proteins as housekeepers of the plant trans-Golgi network/early endosome

Rosquete et al., identified a TRAPPIII tethering complex in plants and uncovered the role of the AtTRAPPC11 subunit in post Golgi trafficking and stress response. Plant Cell https://doi.org/10.1105/tpc.19.00110 By Michel R. Rosquete and Georgia Drakakaki Background: Intracellular trafficking is a finely regulated process responsible for the transport of molecules between cell membrane compartments, such as […]

Scaffolding Brassinosteroid Components to Improve Plant Growth

Amorim-Silva et al. identify scaffolding proteins that optimize BR signaling. Plant Cell https://doi.org/10.1105/tpc.19.00150  By Vitor Amorim-Silva and Miguel Botella  Background: The plant hormone Brassinosteroid (BR) is essential for proper growth. This hormone is extracellularly perceived by plasma membrane Receptor Like-Kinases, causing transphosphorylation of their cytosolic domains and the subsequent phosphorylation/dephosphorylation of signaling components. These events […]

Local and Global Root Growth Dynamics in Maize

Jiang et al. use time-lapse 3D imaging, computer vision, and mathematical modeling to quantify root system architecture. Plant Cell https://doi.org/10.1105/tpc.19.00015  By Ni Jiang and Christopher Topp, Donald Danforth Plant Science Center   Background: Root systems are the literal foundations of most plants and have an enormous influence on plant health and productivity. However, they are […]

Self-assembling organelles for CO2 fixation: stoichiometry and structural plasticity

Sun et al. investigate how carboxysomes are constructed and regulated in cyanobacteria. Plant Cell https://doi.org/10.1105/tpc.18.00787 By Luning Liu Background: All cells are composed of well-defined compartments to encase enzymes and reactions to increase the efficiency of biological processes. In bacteria that can perform photosynthesis, such as cyanobacteria, the specialized microcompartments are carboxysomes. The carboxysome contains […]

Immunity-growth Trade-off in Plants

Jing et al. reveal how danger-associated peptides inhibit root growth in plants in response to pathogen attack. Plant Cell (2018) https://doi.org/10.1105/tpc.18.00145.   Background: Plants defend themselves against pathogens and pests through an innate immune system that is activated by pathogen-associated and damage/danger-associated signals. Immunity often occurs at the expense of growth inhibition, as exemplified by […]

Regulation and Function of a Plant Energy Sensor

Ramon et al. show how plants have modified the ancient, highly conserved eukaryotic energy sensor to better fit their unique lifestyle and cope with changing environmental conditions. Plant Cell https://doi.org/10.1105/tpc.18.00500 By Nathalie Crepin and Filip Rolland, KU Leuven, Belgium Background: All living organisms need to maintain a positive energy balance for survival and growth. This […]

Gene redundancy: is it also redundant in the “real world”?

Illouz-Eliaz et al. report that GA receptor genes that appear redundant under controlled climate conditions have unique roles under field conditions. Plant Cell https://doi.org/10.1105/tpc.19.00235 By Natanella Illouz-Eliaz, Uria Ramon, Hagai Shohat, Shula Blum, Sivan Livne, Dvir Mendelson and David Weiss. Institute of Plant Sciences and Genetics in Agriculture, The Robert H. Smith Faculty of Agriculture, […]

Plant Calcium Channels Perceive the Hungry Caterpillar

Meena et al. identify a Ca2+ channel involved in herbivory recognition. Plant Cell https://doi.org/10.1105/tpc.19.00057 By Mukesh Kumar Meena, Ramgopal Prajapati, Deepthi Krishna and Jyothilakshmi Vadassery are from National Institute of Plant Genome Research (NIPGR), New Delhi, India Background: Insect herbivory greatly limits plant growth and productivity. The common cutworm Spodoptera litura is a widespread, destructive […]

Small RNA Pathway Acting in the Father Controls Seed Abortion

Satyaki and Mary Gehring uncover the mechanism underlying interploidy seed abortion, challenging previous models of dosage sensitivity in endosperm. Plant Cell https://doi.org/10.1105/tpc.19.00047 By PRV Satyaki (Whitehead Institute for Biomedical Research) and Mary Gehring (Whitehead Institute for Biomedical Research and Department of Biology, Massachusetts Institute of Technology) Background: In the seeds of flowering plants, the embryo […]