Scientists discovered that blocking a specific potassium channel (Kir2A) in the diamondback moth — one of the world's most destructive crop pests — kills the moth's eggs. Both genetic knockout and small-molecule inhibitors achieved this ovicidal effect, pointing toward a new class of pesticide targets.
1
Homozygous knockout of the PxKir2A gene was lethal at the egg stage, confirming the channel is essential for diamondback moth egg survival.
2
Three small-molecule inhibitors — VU625, VU590, and chlorfenapyr — significantly suppressed PxKir2A channel activity in electrophysiology recordings.
3
The study used CRISPR/Cas9 gene editing and patch-clamp electrophysiology to characterize the channel, providing both genetic and pharmacological proof of concept.
mail
Weekly plant science — one email, Saturdays.
Check your inbox to confirm — link expires in 24 hours.
Something went wrong — please try again.
Too many signup attempts from your network. Try again in an hour, or email hello@plant.news.