Plasma membrane lipids at plant-pathogen interfaces: Regulators of immunity and susceptibility.
Perk EA, Shan L, Munnik T, Laxalt AM, Heilmann I
Plant Signaling
Every tomato that rots on the vine, every rose blackened by fungus, every elm lost to disease comes down to a battle fought at the invisible surface of each plant cell — and scientists are finally mapping how plants win or lose it.
Plant cells are surrounded by a thin skin called the plasma membrane, and it turns out the fats that make up this skin aren't just structural — they're like alarm systems and control switches that fire up when a disease-causing pathogen shows up. The mix of these fats can change rapidly and locally, almost like a plant flexing its immune response exactly where it's being attacked. Pathogens, in turn, have evolved tricks to mess with this fatty layer so they can sneak in and take hold.
Key Findings
Plasma membrane lipid composition is dynamically remodeled within minutes during pathogen attack, enabling rapid and localized immune activation.
Multi-layered regulatory mechanisms control lipid composition at the plant cell surface, determining whether a plant resists or succumbs to infection.
Pathogens actively manipulate host plasma membrane lipids and structure to suppress defenses and facilitate colonization.
chevron_right Technical Summary
A new review reveals that the thin outer membrane of plant cells acts as a dynamic command center during pathogen attacks, with fats (lipids) in that membrane rapidly rearranging to activate defenses — and pathogens actively trying to hijack this system to get inside.
Abstract Preview
Plants in their natural habitats encounter abiotic and biotic stress factors, making sensing and responding to stresses integral components of their lifestyle. The ability to respond to environment...
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