Recent Posts

From Fuzziness to Clarity: Regulation of DRP5B Ring Dynamics at the Chloroplast Division Site

Tianhu Sun ORCID ID: 0000-0002-2513-1387 Plant Breeding and Genetics Section, School of Integrative Plant Science, Cornell University, Ithaca, New York 14853 ts753@cornell.edu Plant cells harbor a varying number of chloroplasts and chloroplasts multiply by division to maintain the continuity…

Cell Wall Remodeling During Wood Development

Madeleine Seale Department of Plant Sciences, University of Oxford, South Parks Road, Oxford, OX1 3RB, United Kingdom maddy.seale@plants.ox.ac.uk ORCID: 0000-0002-8924-3943 Wood formation occurs via radial proliferation of vascular cambium cells and the deposition of secondary cell wall layers…

CO2 Concentration in Chlamydomonas: Effect of the Pyrenoid Starch Sheath

Ananya Mukherjee ORCID ID: 0000-0003-1802-1806 amukherjee3@unl.edu University of Nebraska Lincoln Lincoln, NE 68588    In the photosynthetic Calvin-Benson cycle, the enzyme ribulose 1,5-bisphosphate carboxylase/oxygenase (Rubisco) fixes CO2 into organic compounds. A major limitation…

A well-oiled machine: two fatty-acid exporters involved in seed oil biosynthesis

A well-oiled machine: two fatty-acid exporters involved in seed oil biosynthesis Mehran Dastmalchi mdastmalchi@brocku.ca Oilseed plants such as canola (Brassica spp.) are a massive, multi-billion dollar industry, with their lipids contributing to food, cosmetics, polymers and biofuels. For the…

Tuning to the signal of stress: sub-cellular regulation of abscisic acid receptor abundance by E3 ubiquitin ligases

Magdalena M. Julkowska Magdalena.Julkowska@kaust.edu.sa   Developmental and environmental changes are communicated systemically throughout the plant by various signals, ranging from electric currents to plant hormones. As the responses elicited by the systemic signals depend on the tissue…

Discovering Lipid Droplet Proteins—from Seeds to Seedlings

Lynn GL Richardson, Michigan State University, East Lansing, MI 48843 During germination and early seedling establishment, embryos rely on stored energy for growth and cellular maintenance until photoautotrophic growth takes over. Proteins and lipids make up most of the energy-rich stores in the embryo,…

LACCASE2 negatively regulates lignin deposition of Arabidopsis roots

Lignin is a complex aromatic biopolymer in the secondary cell wall of vascular plants. It is crucial for providing physical strength and pathogen resistance to the plant. Lignified xylem vessels are also necessary for efficient water transport. Lignin is formed by oxidative polymerization of monomers…

Keep cool and open up: temperature-induced stomatal opening

When air temperatures rise above the comfortable level, plants initiate a cooling mechanism to prevent heat stress. High ambient temperatures induce a specific set of growth responses, termed thermomorphogenesis, which includes enhanced hypocotyl and petiole elongation, and leaf hyponasty (reviewed by…

A Tale of Two Isoforms: Calcium-dependent Inhibition of SnRK2 by SnRK-Calcium-binding Sensor

Magdalena Julkowska Magdalena.Julkowska@kaust.edu.sa  Reacting to the environment requires not only activating signaling cascades but also modulating the activity of individual components in a context- and time-dependent manner. For example, under non-stress conditions protein phosphatases 2C…