pest-resistance
Pest resistance in plant science refers to the natural or engineered ability of plants to withstand, deter, or recover from damage caused by insects, nematodes, and other harmful organisms. Developing pest-resistant crop varieties is a central goal of plant breeding, reducing reliance on chemical pesticides while protecting yield and food quality. Understanding the genetic and biochemical mechanisms behind resistance helps researchers design more durable and sustainable agricultural solutions.
open_in_new WikipediaPubMed · 2026-04-14
Researchers identified the specific scent chemicals that potatoes release and the smell receptors in potato tuber moths that detect them, revealing why some potato varieties are more vulnerable to pest attack than others.
Specific volatile semiochemicals (plant-released scent compounds) were identified that differ between susceptible and resistant potato cultivars, directly influencing moth attraction levels.
Particular odorant receptors in the potato tuber moth were matched to these potato-derived chemicals, establishing a molecular link between plant scent and pest host-finding behavior.
Resistant potato varieties were associated with a chemical scent profile that is less detectable or less attractive to moth odorant receptors compared to susceptible cultivars.
