Entries by Lynn GL Richardson

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, and in Arabidopsis thaliana, lipids can comprise up to 40% of […]

Viruses on the move in the extracellular space

Lynn GL Richardson Department of Plant Biology, Michigan State University, East Lansing, MI 48824 Positive strand (+) RNA viruses act as their own messengers, encoding an RNA-dependent RNA polymerase that can replicate their sense RNA genome. This allows (+)RNA viruses to replicate outside the nucleus, within replication complexes formed from host organelle membranes often called […]

The SNARE SYP132 fine-tunes proton transporter levels at the plasma membrane during plant growth

By Lynn GL Richardson The acid-growth theory was proposed over 40 years ago based on early observations that low apoplastic pH promotes growth in a pathway involving the plant hormone auxin (Rayle and Cleland, 1992; Hager, 2003; Arsuffi and Braybrook, 2018). Since this discovery, a clearer understanding of the mechanism behind acid growth and its […]

Two is better than one: Dual SEC11 binding sites regulate SYP121-mediated vesicle trafficking

Vesicle trafficking is indispensable, playing critical roles in plant growth, development, and stress responses, and trafficking to the plasma membrane is an important contributor to cell expansion and cell wall remodeling (reviewed in Lipka et al., 2007; Grefen and Blatt, 2008). Vesicle budding, trafficking and fusion are tightly regulated to ensure vesicles are targeted to […]