SAR
n. uncountablen. Stands for systemic acquired resistance. A way that plants protect themselves from disease. After one part of a plant gets sick, it sends a signal to the rest of the plant to get ready to fight off more germs.
n. Abbreviation for systemic acquired resistance. A mechanism of induced defense that confers long-lasting protection against a broad spectrum of microorganisms. It involves the activation of plant defense genes throughout the organism following an initial localized infection.
The plant developed SAR after the first leaf was infected.
Farmers use specific chemical sprays to trigger SAR in crops, helping them resist fungal diseases without using traditional pesticides.
The induction of SAR is characterized by an increase in endogenous salicylic acid levels, which coordinates the expression of pathogenesis-related proteins to fortify the plant against subsequent biotic stress.
Commonly used as an acronym for 'Systemic Acquired Resistance' in botanical and agricultural contexts.