A western honey bee’s stinger is a final defense mechanism meant to embed itself in flesh and inject venom, often leading to the bee’s death. New research in the Proceedings of the National Academy of Sciences sheds light on the effectiveness of this mechanism by filming bee stingers in action using high-speed cameras.
Fiorella Ramirez Esquivel, the lead author and a postdoctoral researcher at Macquarie University, highlighted the unique opportunity modern cameras provided to capture the stingers in action. The experiments involved using live honey bees, extracting their stingers, and swiftly studying the structures before they became inactive.
The study uncovered a double-piston design in the stinger, where specialized valves drive the stinger deeper while continuously delivering venom. This intricate mechanism involves a complex interplay of components that researchers recreated using 3D printing technology. The research also revealed how the stinger can twitch and move minutely for up to 15 minutes after deployment.
The defense mechanism of honey bees involves sacrificing part of their bodies for the greater good of the colony. This autotomy process is unique to social species like the western honey bee, where workers protect the superorganism. The stinger not only injects venom but also releases pheromones to alert and recruit other bees to join in defense.
The study’s findings have potential medical applications due to the continuous venom flow mechanism, which differs from a standard syringe. Researchers hope that understanding these complex systems can lead to broader insights into bee behavior and potentially benefit medical practices.