Lipid droplet proteome plasticity in plant evolution, growth and development, and response to stress.
Dabisch J, Scholz P, Mullen RT, de Vries J, Ischebeck T
Seed Saving
Every seed you plant — from sunflower to squash — survives dormancy and powers its first days of growth by burning stored fats inside these oil droplets, and understanding how plants load, protect, and break them down could lead to crops that sprout more reliably under drought or cold.
Plants store energy as tiny blobs of fat inside their cells, kind of like miniature oil tanks. These droplets are coated with special proteins that control how the fat gets made, stored, and used. This review pulls together years of research to show that those protein coatings change dramatically depending on whether you're looking at a leaf, a seed, a seedling, or a plant under stress — and that this system is surprisingly ancient, already present in the algae ancestors of land plants.
Key Findings
The core proteins found on seed oil droplets in land plants first evolved in streptophyte algae, pushing the origin of this system back hundreds of millions of years before seeds existed.
The protein composition of lipid droplets differs significantly between tissues (e.g., seeds vs. leaves) and shifts dynamically during key life stages such as seedling establishment and leaf senescence.
Proteomics studies have identified entirely new families of lipid droplet proteins, expanding the known toolkit and revealing roles in stress responses to both environmental (abiotic) and pathogen (biotic) challenges.
chevron_right Technical Summary
Scientists reviewed how the tiny oil-storage droplets inside plant cells change their protein makeup depending on the plant species, tissue type, life stage, and environmental stress — revealing that this protein toolkit is far more dynamic and ancient than previously thought.
Abstract Preview
Lipid droplets (LDs) are subcellular structures that occur in all plant cells and are composed of a core of hydrophobic molecules, such as triacylglycerols, surrounded by a phospholipid monolayer a...
open_in_new Read full abstractAbstract copyright held by the original publisher.
Was this useful?
Want to tell us more? (optional)
Thanks for the note!
Something went wrong — please try again.
Too many submissions. Try again in an hour.
Chloroplast Genome Editing Eliminates Gluten Immunogenicity in Triticum aestivum
It could mean that people with celiac disease — roughly 1 in 100 worldwide — may one day safely eat bread made from real wheat, without sacrificing the taste...